Image processing device, image processing method and data transmission system

FIELD: information technology.

SUBSTANCE: device includes an original image processing system and a gradation conversion unit, having the function of converting the gradation of received image data from the processing system. The system also enables to convert a number of image data bits and express pseudo gray scales before gradation conversion in a gray scale converted image. The gradation conversion unit is capable of changing the gradation conversion function and performing conversion processing on the image, wherein the gradation conversion unit adds and outputs a determination flag indicating whether the gradation conversion processing has been performed at the time of outputting the image data.

EFFECT: reduced component loss of a plurality of bits during one-dimensional super bit mapping processing.

7 cl, 8 dwg

The technical field to which the invention relates.

The present invention relates to an imaging device having a function for converting the gradation or processing of converting the gray scale for converting the number of bits, to a method of image processing and data transfer system.

The level of technology

For example, to display the image having the pixel value of the N bits in a display device that displays the image with the pixel value of M bits, where M is less than N, it is necessary to convert the N-bit image into M-bit image, that is, to perform the processing of the gradation conversion for converting the gradation of the image.

As a way of converting the gray scale of the N-bit image into M-bit image, for example, there is a method of quantization in M-bit pixel value by simply rounding to the lower side of the N - M bits of N-bit pixel values.

When converting the gradation quantization, for example, 8 bits provide 256 (=2⁸) gray levels, but 4 bits provide only 16 (=2⁴) levels of gray.

Accordingly, the gradation conversion, in which 8-bit image gray scale quantum 4 upper order bits by rounding to the lower side bits of the lower order, arise from the wasps, when the change in the gray scale looks in stripes.

To prevent this conversion with the formation of the bands and for the expression of pseudoceros scale, which was prior to performing the gradation in the image after gradation conversion, for example, it is known successful method of diffusion errors.

Using the method of error diffusion, for example, in an image with 16 levels of gray scale obtained by converting the gradation image with 256 levels of scale, visually expressed in 256 levels of gray scale for the human eye, using 16 levels of gray scales.

That is, if the bits of the lower order simply rounded down, quantization errors become visible in the displayed image, and thus, it becomes difficult to maintain the quality of the image.

Accordingly, the method for performing Delta-Sigma modulation on the image, in which such quantization errors are modulated at high frequency bands, taking into account the characteristics of human vision, known as successfully applied by way of diffusion errors.

Usually use the filtering quantization errors using two-dimensional filter for diffusion errors.

As a two-dimensional filter using the filter Jarvis, Judice&Ninke, and filter Floyd&Steinberg (for example, see publication Hitoshi KIYA, "Understandable Digial Image Processing", ver. 6, CQ Publishing Co., Ltd., pp.196-213, Jan. 2000).

The invention

In particular, assumes that you can run instead of the two-dimensional one-dimensional Delta-Sigma modulation.

In the recording device and playback of video, which perform image processing using the processing function of the one-dimensional display super bits (SBM, OSB).

In this respect, the treatment of RSD is a technology that allows you to transfer the signal without loss component of many bits by adding high-frequency noise, in accordance with the characteristics of human vision, while the rounding of the signal processing with many bits in a signal with a certain number of bits.

However, when the device is recording and playback of video, etc. such as the source device, performs the processing RSD and outputs the signal, the effect of RSD sometimes reduced as a result of processing the video signal to the connected device user, such as a television receiver, etc.

For example, when the video signal in the band 4:2:2 processed RSD and output as a signal of 4:4:4, there are occasions when this signal is re-convert again into a signal of 4:2:2, for some reason, the video processing device of the consumer.

In this case, although a variety of symptoms, depending on the JV is soba video signal processing device of the consumer, in some cases there is a risk of total loss of the effect of RSD.

Also in game mode, which is intended as the existing technology, the purpose of the mode consists of minimizing delays on the side of the television receiver as a result of processing, and thus, the signal processing in the television receiver is also different.

Also, the choice of game mode is performed manually, and automatic switching is not supported.

It is desirable to provide an imaging device, method of image processing and data transfer system that can be used to inform the device of the visual signal was processed gradation conversion or not.

In accordance with a variant implementation of the present invention is provided by the information-processing device, comprising: a processing system that performs processing of the original image; and a conversion unit gradation having a function for converting the gradation of the image data received from a processing system that converts the number of bits of the image data, and expressing pseudoscalar gray color before converting the gradation of the image with the converted gray scale, and the conversion unit gradation made with the possibility of changing the function of converting the gradation of you is filling up conversion processing for the image in which the conversion unit gradation adds and outputs the flag definitions, meaning if you have completed processing of the gradation conversion during the output of the image data.

In accordance with another variant of implementation of the present invention, a method for image processing, comprising the following steps: perform the processing of the original image by using the processing system; carry out the conversion of the gradation using the gradation conversion function using the gradation conversion, which consists in converting the number of bits of the image data and the expression of pseudorca gray color before converting the gradation of the image with the converted gradation, in accordance with management of change; and add and remove flag definitions, meaning if you have completed processing of the gradation conversion during the output of the image data.

In accordance with another variant of implementation of the present invention proposed a data transmission system, comprising: a source device; device-user and the cable connecting the source device and the device user, in which the source device includes a processing system that performs processing of the original image, and a conversion unit gradation having a function for converting Gras is then taken image data from the processing system, convert the number of bits of the image data and expressions pseudorca gray color before converting the gradation of the image with the converted grayscale, and the conversion unit gradation made with the possibility of changing the function of converting the gradation and performing conversion processing of the image, in which the conversion unit gradation adds and outputs the flag definitions, meaning if you have completed processing of the gradation conversion, while the output image data and device-user performs signal processing, which helps to maintain the effect of the conversion processing gradation, if the flag determination means that the processing of the gradation conversion has been performed.

In accordance with the present invention, it becomes possible to inform the device receiving the image signal, was whether or not the processing of the gradation conversion.

In result, it becomes possible to perform processing of the signal pickup device in accordance with the order was processed gradation conversion or not.

Brief description of drawings

1 shows a diagram illustrating an example of a data transmission system, in accordance with the first variant implementation of the present invention;

figure 2 shows a diagram illustrating approx the R connection-specific data transmission systems, in accordance with a variant implementation of the present invention;

figure 3 shows a block diagram illustrating an example configuration of a recording device and playback working with optical drives as the source device, having a function of a one-dimensional treatment of RSD in accordance with a second embodiment of implementation of the present invention;

figure 4 shows a block diagram illustrating an example configuration of the processing unit OSB;

figure 5 shows a block diagram illustrating an example configuration of the conversion unit gradation, which represents a significant part of the processing unit OSB, in accordance with this variant implementation;

figure 6 shows a diagram illustrating an example of block configuration add smoothing in figure 5;

7 shows a diagram illustrating the order of the pixels subjected to the processing of the gradation conversion;

and Fig shows a diagram illustrating an example configuration of a television receiver, as devices with HDMI (MUCH, multimedia interface high-definition).

Detailed description of the invention

Next will be described a variant implementation of the present invention with reference to the drawings.

In this respect, will be described in the following order.

1. The first version of the implementation (an example of the basic configurations and data transmission systems).

2. The second option run (example of configuration of recording device and playback, which uses the information-processing device).

3. The third variant of execution (an example configuration of a television receiver as a device-consumer).

1. The first version of the runtime

1 shows a diagram illustrating an example of a data transmission system, in accordance with the first variant implementation of the present invention.

Such a system 10 data represents an example configuration in which, for example, as a data transmission interface is used MUCH multimedia interface high-definition), which can transmit data of a pixel of the uncompressed image at high speed in one direction.

In the system 10 data used MUCH as a data transmission interface of the DVD recorder (DVD, digital versatile disc), digital set-top box and other AV (AV, audio-video) sources in a television receiver, a projector or other display modules.

The system 10 data source has 20 MUCH, the consumer 30 MUCH and the cable 40 MUCH.

In the system 10 data source 20 MUCH and the consumer 30 MUCH connected through a single line in the form of a cable 40 MUCH.

Source 20 MUCH and the consumer 30 MUCH can perform bidirectional IP (PI, Protocol inter is no data transfer at high speed, using the cable 40 MUCH.

Below is a detailed description of a specific example in the case when the device is recording and reproducing video signal is used as the source 20 MUCH and television receiver is used as the consumer 30 MUCH.

As described in detail below, the recording and playback of video as a source 20 MUCH has the function of processing RSD.

The recorder and playback video signal transmits a signal (flag) definition, intended to inform the consumer 30 MUCH that was processed OSB, in addition to the video signal during the video output, which was subjected to the treatment of RSD.

The television receiver as a consumer 30 MUCH designed to ensure the transmission of information to a display device and so on, without reducing the effectiveness of RSD by changing the signal processing in accordance with the signal definition.

The cable 40 MUCH includes transmission channels, called channel TMDS (DSMP, differential signal transmission minimized differential levels) 41, DDC (KDD, display data channel) 42, line 43 SES (UBA, management of consumer electronic devices).

Also, the cable 40 MUCH includes line 44 signal which is connected to the output called "detection of operative connection.

Channel 41 DSMP predstavljaet a channel, designed to perform unidirectional data transmission from the source 20 MUCH in the consumer 30 MUCH.

Line 43 WBE performs the function of the channel, which performs bidirectional data transmission between the source 20 MUCH and the consumer 30 MUCH.

Line 43 UBA formed by one signal line, not shown in the drawing, is included in the cable 40 MUCH. Line 43 UBE is used to perform bi-directional data transfer control between the source 20 MUCH and the consumer 30 MUCH.

Also, the source 20 MUCH and the consumer 30 MUCH transmit frames corresponding to the IEEE (Institute of electrical and electronics) in 802.3, the consumer 30 MUCH and source 20 MEPC respectively through KDD 42 or line 43 UBA. Thus, it is possible bidirectional PI data.

In addition, the source 20 MUCH and the consumer 30 MUCH can detect the connection of a new electronic device, that is, the consumer 30 MUCH or source 20 MUCH using the line 44 of signal.

Source 20 MUCH transmits a digital television signal, that is, the pixel data is uncompressed (basic bandwidth) image, and audio data accompanying the image, the consumer 30 MUCH with high speed, through the cable 40 MUCH.

Source 20 MUCH passes in one direction different the social signal, the corresponding data of an uncompressed image for one screen of the consumer 30 MUCH, through many channels, within the effective interval of the image, which is the difference obtained when the blanking interval horizontal retrace and blanking interval vertical retrace subtracted from a period from one vertical synchronization signal to the next vertical synchronization signal.

Source 20 MUCH passes in one direction differential signal corresponding to at least audio data, management data and other auxiliary data, etc. that accompany the image in the consumer 30 MUCH, through many channels, during the blanking interval horizontal retrace or blanking interval vertical retrace.

That is, the source 20 MUCH has a transmitter 21.

The transmitter 21 converts, for example, pixel data of uncompressed image into a corresponding differential signal, and serially transmits in one direction differential signal in the consumer 30 MUCH, connected via multiple channels, i.e. through three channels No. 0, No. 1 and No. 2 DSMP through the cable 40 MUCH.

The transmitter 21 converts the audio data accompanying the uncompressed image, necessary control data, and other spare gateline data, etc., into corresponding differential signals, and serially transmits in one direction differential signals in the consumer 30 MUCH through three channels No. 0, No. 1 and No. 2 DSMP through the cable 40 MUCH.

In addition, the transmitter 21 transmits a clock frequency of pixels synchronous with the data of pixels transmitted through three channels No. 0, No. 1 and No. 2 DSMP, the consumer 30 MUCH connected via cable 40 MUCH, the channel clock frequency DSN.

Here 10-bit pixel data is passed through one channel DSM No. i (i=0, 1, 2) within one period of the clock frequency of the pixels.

The consumer 30 MEPC receives the differential signal corresponding to the data of pixels transmitted in one direction from a source 20 MUCH through multiple channels during an effective interval of the image.

The consumer 30 MEPC receives the differential signal corresponding to audio data and the management data transmitted in one direction from a source 20 MUCH on multiple channels, during the blanking interval horizontal retrace or blanking interval vertical retrace.

That is, the consumer 30 MUCH has a receiver 31.

The receiver 31 receives the differential signal corresponding to the data of the pixels, and a differential signal corresponding to audio data and management data that must be PE is edany from source 20 MUCH by channel No. 0 - No. 2 DSMP through the cable 40 MUCH, synchronously with a clock frequency of pixels of the channel clock frequency TDMS.

KDD 42 formed two lines of signals, not shown in the drawing, is included in the cable 40 MUCH.

KDD 42 is used to source 20 MUCH to read E-EDID (Y-RDID, improved extended identification data of the display) of the user 30 MUCH connected via cable 40 MUCH.

The consumer 30 MUCH has a ROM, a persistent storage device) 32 RDID, which contains the Y-RDID that represent information about the installation and the characteristics of the consumer 30 MUCH, in addition to the receiver 31.

Source 20 MUCH reads Y-GID stored in the ROM 32 RDID consumer 30 MUCH, from the consumer 30 MUCH connected via cable 40 MUCH through KDD 42.

Source 20 MUCH recognizes the installation and features of the consumer 30 MUCH based on Y-RAID.

That is, the source 20 MUCH recognizes, for example, the format (profile) image, supported by consumer 30 MIVC (electronic devices), such as RGB (red, green, blue), YCbCr4:4:4 or YCbCr4:2:2, and so on

In this regard, although not shown in the drawing, the source 20 MEPC also saves U-RDED in the same way as the consumer 30 MUCH, and can pass THE-RDED in the consumer 30 MUCH, if necessary.

Above was the description of the basis of the Noah system configuration 10 data in accordance with the specification MUCH.

Figure 2 shows a diagram illustrating an example of a specific connection data transmission system in accordance with a variant implementation of the present invention.

Next, as shown in figure 2, will describe the specific case in which the recording device and playback of the optical disc 200 (data processing unit), such as a DVD, etc. is used as the source 20 MUCH and the television receiver 300 is used as a consumer 30 MUCH.

Here, the device 200 to the recording and playback of an optical disk as a source 20 MUCH has the function of processing RSD.

The device 200 to the recording and playback of the optical disk passes the signal determination flag (definitions) in order to inform the consumer 30 MUCH that the video signal subjected to the processing of RSD, in addition to the video signal, while the output of the video signal which has been subjected to the treatment of RSD.

The television receiver 300 as a consumer 30 MEPC performed with the opportunity to inform the display device, etc. without reducing effect OSB, by changing the signal processing, in accordance with the signal definition.

2. The second embodiment of the

Figure 3 shows a block diagram illustrating an example configuration of a recording device and playback from an optical disc used is as a source device, having a function for processing one-dimensional OSB, in accordance with a second embodiment of implementation of the present invention.

The device 200 to the recording and playback of an optical disk (below called device recording and playback), in accordance with this alternative implementation uses the function processing of the one-dimensional super display panel: display super bit).

Here, the treatment of RSD is a technology that allows you to transfer the signal without loss of multi-bit components, by adding high-frequency noise, in accordance with the characteristics of human vision, while the rounding of the signal processing with many bits, in a certain number of bits.

The device 200 to the recording and playback (below, called the recorder and playback), in accordance with this variant of execution, is a device that is configured to record the video content transmitted from the outside to the recording medium such as a hard disk drive (HDD expand), optical disk, etc. and has a capability to playback the video content recorded on the recording media.

The device 200 to the recording and playback represents, for example, a device with a combination of a recording device, an optical disk drive that uses optical the second disk as the recording media, and recording devices UEFA, in which a hard disk is used as the recording media.

Video content includes, for example, the program content of a television broadcast received from the broadcast station transmission, the video input from the outside, selling DVD, the video read from a BD (Blu-ray Disc (registered trademark)), and so on

In this respect, television broadcast includes the broadcast of the program content of radio broadcasting such as terrestrial digital/analog broadcasting, BS (UWB, satellite broadcasting) broadcasting, CS (SS, satellite communication), performing a broadcast transmission, etc.

In addition, the TV broadcast transmission includes transmission of the content of the program through a network such as a cable television broadcast IPTV (TITI, TV over Internet Protocol) or VOD (VAC, video on demand), etc.

The device 200 to the recording and playback has an input line terminal 201, an analog tuner 202, the actuator 203 disk drive hard disk 204, the input connector 205 i.LINK digital tuner 206, the selector 207 and the device 208 videos.

The device 200 to the recording and playback is with the speaker 209, the encoder 210 MPEG (Expert group on the moving image), the CPU 211 HDV (RSP, high-definition video), the processor 212 of the stream decoders 213 and 214 MPEG, processor 215 video and block 216 RSD processing.

The device 200 to the recording and playback unit has (TX) 217 transmission MUCH, digital to analog Converter (DAC DAC) 218, main CPU, (CPU, Central processing unit) 219, connector 220 MUCH, component connector 221 and a composite connector (S connector) 222.

The analog video signal injected into the input output 201 from the external device. The input analog video signal is passed to the selector 207.

Analog tuner 202 selects the target channel signal from a broadcast transmission, the received analog broadcast antenna transmission, not shown in the drawings, performs demodulation processing of the signal channel and generates a received signal (video and audio analog signal maintenance program.

In addition, analog tuner 202 performs predetermined video processing, such as processing gain of the intermediate frequency, the color separation signals, generating color-difference signal, the selection signal synchronization, etc. for the received signal, and outputs the video signal to the selector 207.

The actuator 203 writes and reads various kinds of information on and from an optical disc, which presents yet a recording medium.

For example, the actuator 203 disk load commercially available removable recording media (sold DVD, BD etc)on which the recorded video content in such a way that the actuator 203 of the disk can read and play the video content.

The actuator 203 disk performs data exchange with the CPU 212 of the stream.

The actuator 204 of the hard disk drive writes and reads various types of information on the hard disk and which is a recording medium.

For example, the actuator 204 of the hard disk drive writes the stream video/audio signal supplied from the processor 212 of the stream to the hard disk.

Also, the actuator 204 of the hard drive reads data recorded on the hard disk, and displays the data in the processor 212 of the stream.

Thus, the device 200 recording and playback, in accordance with this variant of execution, has two recording devices, that is, the actuator 203 of the disk and the actuator 204 of the hard disk.

Thus, the device 200 to the recording and playback can write the content recorded on the actuator 204 of the hard disk drive 203 disk and Vice versa.

In this regard, any recording medium can be used as the recording media. For example, you can use a magnetic disk such as a hard disk, etc., DVD next generation (Blu-ray etc), DVD-R, DVD-RW, DVD-RAM, etc.

Alternatively, for example, either the recording medium, for example, an optical disk such as a magneto-optical disk, various types of semiconductor memory, such as storage device type, flash, etc. can be used as the recording media.

Also, as the recording media you can use the recording media attached to the device 200 recording and playback, or removable recording medium, which is made with the possibility of removal from the device 200 to the recording and playback.

An external device, such as a digital video camera system RSP (high definition video), connect to the external input connector, such as the input connector 205 i.LINK, etc

Video and audio signals RSP (stream)transmitted from the external device using the method, IEEE 1394, served in the input connector 205 i.LINK and served in the processor 212 of the flow through the processor 211 RSP.

Digital tuner 206 selects the target channel from the broadcast channels received via satellite broadcast or an antenna for terrestrial digital broadcast, and outputs the video and audio digital data (bit stream) of the content channel in the processor 212 of the stream.

The selector 207 selects either the analog video signal from an external device, which is introduced via the line terminal 201, or an analog video signal by using an analog tuner 202 and outputs a signal device in the creation of 208 videos.

The device 208 video converts (A/D (a/d, analog-to-digital) conversion, for example, the input analog video format NTSC (national television system Committee standards) into a digital signal, and then divides this signal into a brightness signal and the chroma signal, and performs decoding processing.

The device 208 video displays the decoded video signal in the main band selector 209 and the processor 215 video.

The selector 209 selects either the output from the device 208 videos, or the output of the processor 215 video and outputs the selected output signal to the encoder 210 MPEG.

The encoder 210 MPEG performs encoding, such as MPEG1, MPEG2, MPEG4, MPEG4-AVC/H.264, etc. Encoded stream output to the processor 212 of the stream.

The encoder 210 performs MPEG encoding compression for video and audio digital signal from the device 208 videos and processor 215 video in the specified encoding format compression.

The encoder 210 MPEG is an encoder with high performance, which corresponds, for example, HD (HF, high definition) and SD video (MF, standard definition). That is, the encoder 210 MPEG configured to encode only the video signal with a resolution of midrange, but also a video signal with a resolution of the RF.

Also, the encoder 210 MPEG is an encoder corresponding to the stereo and megachannel the resultant sound, and you can encode not only two-channel audio signal, but also multi-channel audio.

The encoder 210 MPEG-encodes the video or audio content, which must be recorded with the frequency of the bits corresponding to the recording mode specified by the main CPU 219.

The encoder 210 MPEG outputs the compressed data (bit stream) of the video and audio signals encoded thus, the processor 212 of the stream.

During recording, the processor 212 of the flow passes the flow to the actuator 203 BD, DVD, etc. or actuator 204 is a hard disk, etc. and writes this thread on the requested media.

During display or playback, the processor 212 of the flow highlights and analyzes the requested video stream and then transmits this stream decoders 213 and 214 MPEG.

The processor 212 of the thread executes a predetermined data processing for the data (stream), which record or reproducing, while recording data on or reproducing data from the recording media.

For example, during the recording data processor 212 flow multiplies and encrypts the compressed data encoded by the encoder 210 MPEG, and writes the data on the recording medium, performing buffer management.

Also, during playback data processor 212 flow decrypts and further demultiplexes the compressed data read from the recording medium, and outputs these data to the decoders 213 and 214 MPEG.

Dec is dari 213 and 214 MPEG are pieces of hardware, representing examples of the block decoder, which decodes the compressed video and audio signals.

Decoders 213 and 214 MPEG decode (resultnat compressed data or compressed video and audio data input via the processor 212 of the stream in accordance with a given encoding compression.

For encoding compression (codec)used by the encoder 210 and MPEG decoders 213 and 214 MPEG, for example, MPEG2, H.264 AVC (UCMJ, improved video encoding), VC1, etc. can be used for video.

Also, for example, for audio data, you can use Dolby NEAS, MPEG2 AAC (UAC, improved audio), LPCM (MLIC, modulation linear pulse code), etc.

Also, as described above, the video and audio signals, with different formats, served in the device 200 to the recording and playback from the outside. The formats of the video signal (image dimensions) include, for example, "480i", "480p", "720p", "1080i", "1080p", etc. in accordance with the quality of the video.

For example, "1080i" is a video signal having a number of effective scanning lines in the vertical direction 1080 (total number of scan lines 1125), the scanning method with interleaving and frame rate of 30 frames/sec.

The resolution "1080i" is "1920×1080 pixels or 1440×080 pixels.

Also, "720p" represents the video signal having the number of effective scan lines in rticula direction 720 (total number of scan lines 750), sequential scanning method and a frame rate of 60 frames/sec.

The resolution "720p" is "1280×720" pixels or "960×1080 pixels.

Among these formats, the video signals "4801" and "480p" have a small number of scan lines, and they are classified as category video midrange (hereinafter referred to as "category MF"), having a low resolution.

On the other hand, the video signals "720p", "1080i", "1080p", etc. have a large number of scan lines, and they are classified as category video RF (hereinafter referred to as "category RF")with high resolution.

Also, the formats of the audio data (number of channels) include, for example, "1 CH", "2 CH", "5.1 CH", "6.1 CH", "7.1 CH", "4 CH", "CH 5", "6 SN", etc.

For example, "5.1 CH" represents the multi-channel audio output through six speakers, namely loudspeakers placed in front of an audience, right-front, left-front, right-rear, left-rear, and low frequency loudspeaker for low frequency sound (LFE (inch): effect of low frequency).

Among these formats audio audio signals "1 CH (mono)", "2 CH (stereo)" is classified as a category stereo audio with low quality (hereinafter referred to as "stereo"), with a relatively small number of channels.

On the other hand, the "5.1 CH", "6.1 CH", "7.1 CH", "4 CH", "CH 5", "6 CH," and so on, have a relatively pain is the second number of channels, and they are classified as a category of multi-channel high-quality audio (hereinafter referred to as "multi-category").

The processor 215 video performs various kinds of video processing, such as conversion processing with obtaining the specified frame size, image quality adjustments, noise reduction, etc., combines the video signal and the graphic signal, etc. and then outputs this signal in block 216 RSD processing.

Also, the output processor 215 video served in the DAC 218 and analog component signal after D/A (d/a, d / a) conversion output in the component connector 221.

Also, the analog composite video (or separate Y/C video) after d/a conversion output in composite video (or S connector) 222.

Block 216 processing RSD performs processing RSD for generating a signal in the main bandwidth (video).

Block 216 processing RSD displays in block 217 transmission MUCH additional signal (flag) definition for informing the consumer 30 MUCH that was processed OSB together with the baseband signal in the main bandwidth during video output in the main bandwidth, which was subjected to the treatment of RSD.

For the television receiver 300 for the consumer 30 MUCH becomes possible is output to transmit information to the display device, etc., without reducing the effectiveness of RSD, by changing the signal processing in accordance with the signal definition.

Figure 4 shows a block diagram illustrating an example configuration unit 216 RSD processing.

Block 216 processing OSB figure 4 is a block 2161 conversion 4:2:2 4:4:4 and block 2162 RSD.

Block 2161 conversion 4:2:2 4:4:4 accepts 8-bit video signal in the main bandwidth processed by the processor 215 video, and performs the processing of increasing the sampling frequency of the chroma signal.

Block 2161 conversion 4:2:2 4:4:4 expands upon the original 8-bit signal to 14 bits, using a variety of calculations in the processing of increasing the sampling frequency of the chroma signal, and outputs this signal to the block 2162 RSD.

Block 2162 RSD performs processing RSD input 14-bit video signal in the main bandwidth and adds definition signal (flag definitions) for informing the consumer 30 MUCH that was processed OSB, and then outputs these signals.

In this regard, block 2162 RSD selects 8/10/12-bit output, in accordance with the information about the connected device, obtained from RDID MUCH, during breeding.

Next will be described the case of a transfer flag definition television receiver together with the video signal in the main bandwidth, which was subjected to the processing is de RSD.

The first example is a case independent definition SDI (SUI, information of a source device) SPDI (JOPI, information frame product description-source)defined in accordance with standard MUCH.

With this tool passed, was processed OSB or not, for a video signal in the main bandwidth transmitted through MUCH.

For example, the manufacturer code or the code category may be transferred to SUI, and thus, it becomes possible to determine the code category independently to use the code, a flag, as the definition.

The second example represents a case of using UBA (Department of consumer electronic devices, as defined in MUCH.

Commands specific to the manufacturer, to allocate UBA, and, thus, this specific command can be added to the transmission flag definitions.

In any case, the main CPU 219 controls the on/OFF processing OSB, and thus the flag definition passed in MUCH, in accordance with on/OFF.

Further, the above description of the example of block configuration of the gradation conversion, which represents a significant block of the processing unit RSD.

Figure 5 shows a block diagram illustrating an example configuration of the conversion unit gradation, which pre is is a significant block conversion unit OSB, in accordance with this variant of execution.

Block 400 conversion gradation has the function of converting the gray scale, in which, for example, an 8-bit image signal extends up to 14-bit video image using the processing noise reduction, and then this signal is converted into the signal having the number of bits, for example 8 bits, 10 bits and 12 bits, allowed for display in the display device.

Block 400 conversion gradation has block 410 add smoothing and block 420 one-dimensional Delta-Sigma modulation.

Block 410 add smoothing performs smoothing of the target image by adding random noise to the value IN(x, y) of the pixels forming the target image, and displays the resulting image in block 420 one-dimensional Delta-Sigma modulation.

Block 420 one-dimensional Delta-Sigma modulation performs one-dimensional Delta-Sigma modulation to the target image subjected to the smoothing processing, using block 410 add smoothing, and outputs the image as image block 400 conversion gradation generated result values OUT(x, y) pixel.

Figure 6 shows a diagram illustrating an example configuration of block 410 add smoothing in figure 5.

As shown in Fig.6, block 410 cobaltichloride has block 411 calculation filter 412 high frequency (HPF (high-pass): a high-pass filter), block 413 output random noise and block 414 factor setting.

As shown in Fig.7, the value IN(x, y) pixels for the target image is passed to the block 411 calculation sequence of a raster scan.

Also, the output of the HPF 412 is passed to the block 411 calculation.

Block 411 calculation adds the output of the HPF 412 to the value IN(x, y) pixel in the target image and transmits the resulting sum value in block 420 one-dimensional Delta-Sigma modulation as the value of F(x, y) of the pixel subjected to the smoothing processing.

High-pass filters 412 random noise output from block 413 output random noise, on the basis of the coefficient, the filter unit 414 install coefficient and transmits the high-frequency components of the random noise resulting from filtering in block 411 calculation.

Block 413 output random noise generates, for example, random noise in accordance with the Gaussian distribution, etc. and outputs the noise in the HPF 412.

Block 414 installation, mainly determines the coefficient of the HPF-CE1, HPF-CE2 or HPF-CE3 filter on the basis of spatial frequency sensitivity characteristics of the human vision and the resolution of the display device and establishes these ratios in the HPF 412.

Under this option, the execution unit 414 setting the coefficient of the mouth of newlive any of the coefficients of the HPF-CE1, HPF-CE2 and HPF-CE3 filter in accordance with the instruction of the main CPU 219.

As described above, in block 410 add smoothing block 414 factor setting selects any one of the coefficients of the high-pass filter 412, HPF-CE1, HPF-SE and HPF-CE3 in accordance with the instruction of the main CPU 219.

High-pass filters 412 random noise input from block 413 output random noise by performing the calculation of the sum of the products of the coefficient, the filter unit 414 install coefficient and the output of the random noise from unit 413 outputs the random noise, etc.

Thus, the HPF 412 transmits high-frequency components of the random noise in block 411 calculation.

Block 411 calculation adds a 14-bit value IN(x, y) pixel in the target image and the high-frequency components of the random noise from the HPF 412.

Block 411 calculation displays, for example, the resulting 14-bit value which has the same number of bits as the target image, or more, in block 420 the one-dimensional Delta-Sigma modulation, as the value of F(x, y) of the pixel subjected to the smoothing.

The main CPU 219 performs the function module processing calculation and control module to control each module in the device 200 recording and playback.

The main CPU 219 performs the processing of various kinds, using the ROM in accordance with the program stored in the ROM, or prog what Amma, loaded in RAM.

The main CPU 219 performs the function of block information of the attribute of unit of analysis, processing unit procedures for the management, control unit correction and image quality, etc.

The main CPU 219 controls the on/OFF processing RSD and manages the transfer of flag definitions in MEPC accordingly.

The main CPU 219 changes the coefficients of the filter HPF 412 block 410 add smoothing HPF-CE1, HPF-CE2 and HPF-CE3.

The main CPU 219 has the function of receiving user commands entered at the user interface, which is not shown in the drawing, the control processing of the recording and playback control of the content and setting the reserved recording of the program broadcast data based on the entered user commands.

Above was the description of the configuration and functions of the device 200 to the recording and playback as source 20 MUCH.

Below is a description of the configuration and functions of the television receiver 300 as a consumer 30 MUCH.

3. The third embodiment of the

On Fig shows a diagram illustrating an example configuration of a television receiver as MUCH.

As shown in Fig, the television receiver 300 as a consumer 30 MUCH connected to the device 200 to the recording and playback this, which works as a source 2 MUCH, through the cable 40 MUCH.

The television receiver 300 Fig has a connector 301 MUCH, the receiving unit (Rx) 302 MUCH, the main CPU 303, a ROM 304 RDID.

Then, the television receiver 300 has a first block 305, the processing of a television signal, the second block 306 processing a television signal, block 307 switching device 308 of the display.

Block 302 receiving MUCH receives signals TMD (SLE, differential transmission minimized differential levels of channels SLE entered via the connector 301 MUCH, and transmits these signals in the first and second blocks 305 and 306 of the processing of a television signal.

Block 302 receiving MUCH transmits the signal determination flag (definitions), added to the video signal in the main bandwidth in the main CPU 303.

The main CPU 303 receives the signal determination flag (definitions), determines whether the subject received video signal in the main bandwidth processing OSB, and performs control of the first and second blocks 305 and 306 of the processing of a television signal, in accordance with the definitions and controls the switching unit 307 switch.

If the main CPU 303 determines that the processing RSD has not been executed, the main CPU 303 performs control so that the first processing unit of the television signal 305 normally processes a television signal in the main strip of the PCC is Scania. The main CPU 303 controls the block 307 switch so that the processed signal was transmitted to the device 308 of the display.

If the main CPU 303 determines that the processing RSD has been executed, the main CPU 303 performs control so that the second block 306, the processing of a television signal passes through itself received video signal in the main bandwidth. Also, the main CPU 303 controls the block 307 switch so that a transmitted signal that has been subjected to processing OSB, was transferred to the device 308 of the display.

Also, the main CPU 303 receives information display, the ROM 304 RDID, and passes this information to the device 200 to the recording and playback through the unit 302 receiving MUCH, connector 301 MIVC and line 42 KDD cable 40 MUCH.

In addition to relevant information on the resolution of the receiver and so on, the information length in bits of the corresponding signal in the main bandwidth is also recorded in the ROM 304 RDID.

The main CPU 219 device 200 to the recording and playback after receiving information generates the instruction in block 216 processing RSD to form

12-bit output if the receiver 300 connected via cable 40 MIVC, supports 12-bit input.

If the receiver 300 supports up to 8 bits, the main CPU 219 generates the instruction in block 216 processing RSD, that is to form the 8-bit output, bringing the appropriate bits through the connector 220 MUCH.

The first block 305, the processing of a television signal performs a normal signal processing for the signal (in the passband), adopted by the block 302 of the reception MUCH that has not been subjected to processing RSD for output in block 307 switch.

The second block 306, the processing of a television signal performs processing of transmission through itself, etc. of the signal in the main bandwidth of the received block 302 receiving MUCH, and after performing for him RSD processing, to output in block 307 switch.

For example, the second block 306, the processing of a television signal pass through its input 4:4:4 without conversion to 4:2:2 and, thus, may support the effect of RSD.

In block 307, the switching output and is connected to the output of the first block 305, the processing of a television signal, the output b is connected to the output of the second block 306, the processing of a television signal and a fixed output (output) is connected to the device 308 of the display.

Block 307 switch is subjected to switching control by the main CPU 303.

If the power switch 307 determines that the main CPU 303 does not complete the processing of OSB, block 307 is switched so as to connect the output a and output C.

If the power switch 307 determines that the main CPU 303 has completed processing OSB, the lock switch 307 switches so to connect the output b and output C.

Next will be described the operation of the device 200 playback, shown in figure 3, and the television receiver 300 Fig separately in the system of records in the system display and the reading system.

The system records

The requested input is selected from a video signal supplied through the input line terminal 201, or the video signal output from the analog tuner 202, a selector 207, and then the selected signal is served in a video decoder 208.

The video decoder 208 performs a/d conversion input analog video signal of the NTSC system and then separates the luminance signal and the chroma signal.

The video decoder 208 performs decoding processing on the signal and the decoded video signal in the main bandwidth is passed to the selector 209 and the processor 215 video.

The selector 209 selects one of the outputs of decoder 208 and the output processor 215 video, and then this output is fed to the input of the encoder 210 MPEG.

The encoder 210 MPEG performs the specified encoding, such as MPEG1, MPEG2, MPEG4, MPEG4-AVC/H.264 etc, and the encoded stream is fed into the processor 212 of the stream.

The stream is passed from the processor 212 of the flow in the actuator 203 of the disc, such as BD, DVD, etc. and the actuator, such as actuator 204 is a hard disk, etc. and write on the requested media.

Also, the flow entered through the input connector is m 205 i.LINK, served in the processor 212 of the flow through the processor 211 RSP.

Also, the stream from the digital tuner 206 is introduced into the processor 212 of the flow, and it can be written to the requested media using the drive 203 of the disc, such as BD, DVD, etc. or drive, such as drive hard disk 204, and so on

Also, the flow entered in the processor 212 of the thread is subjected to such processing as the allocation of the requested video stream and analyzing, using the processor 212 of the stream and then decode using decoders 213 and 214 MPEG. The decoded signal is served in the encoder 210 MPEG through the processor 215 video and the selector 209.

The encoder 210 MPEG performs encoding, such as MPEG1, MPEG2, MPEG4, MPEG4-AVC/H.264, etc. Coded stream is introduced into the processor 212 of the stream.

The processor 212 of the flow passes the flow to the actuator 203 of the disc, such as BD, DVD, etc. or the actuator 204 is a hard disk, etc. and writes this thread on the requested media.

The system display

The requested input is selected from a video signal supplied from the input line output 201, and the signal output from the analog tuner 202, a selector 207, and then the selected signal is injected into the video decoder 208.

The video decoder 208 performs a/d conversion for the input analog video signal in the NTSC system, and then separates the luminance signal and the chroma signal. The video decoder 208 performs clicks the decoding processing on the signal and the decoded video signal in the main bandwidth served in the processor 215 video.

The processor 215 video performs various kinds of processing a video signal, such as the conversion processing of obtaining the requested frame size, image quality adjustments, noise reduction, etc. and combines this video signal and the graphic signal, etc.

The signal, after processing in the processor 215 video, passed in block 216 RSD processing.

In block 216 processing RSD first signal injected into the unit 2161 conversion 4:2:2 4:4:4 and perform the processing of increasing the sampling frequency of the color signal.

In the process of increasing the sampling frequency of the color signal of the original 8-bit signal extends up to 14 bits using various calculations and enter the next block 2162 RSD.

Block 2162 RSD performs processing OSB input 14-bit video signal in the main bandwidth and adds definition signal (flag definitions) to inform whether processed OSB or not, and then outputs these signals.

When the flag determination is passed to the receiver 300, simultaneously with the video signal in the main bandwidth, which has been subjected to processing OSB, for example, perform the following processing.

That is SUI in SPDI, which is defined in the standard MUCH, defined as a specific flag, and PE is edut information about was or not processed RSD for a video signal in the main bandwidth transmitted through MUCH.

Next video in the main bandwidth, processed OSB, passed in block 217 transmission MUCH. In block 217 transmission MUCH input video signal in the main bandwidth is converted into a signal DSN and output together with the control signal connector 220 MUCH.

The output processor 215 video introducing the DAC 218 and the signal analog component, after d/a conversion output connector 221 of the component. Also, the analog composite video or Y/C separate video signal after d/a conversion output in composite video (or S connector) 222.

Also, in the thread supplied from the input / output 205 i.LINK, is passed to the processor 212 of the flow through the processor 211 RSP and the stream from the digital tuner 206 is also injected into the processor 212 of the stream.

The processor 212 of the thread executes such processing as the allocation of the requested video stream and analysis, and then passes the stream to the decoder 213 and 214 MPEG. The video signal in the main line, decoded by the decoders 213 and 214 MPEG, injected into the processor 215 video.

The processor 215 video performs various kinds of processing a video signal, such as conversion processing in the requested frame size, and combines this video signal and the graphic signal, etc. and the ATEM outputs this signal in block 216 RSD.

Block 216 processing RSD performs the same processing branch, as described above.

Then the video signal in the main strip subjected to processing OSB, passed in block 217 transmission MUCH. In block 217 transmission MUCH input video signal in the main strip is converted into a signal DSN and output connector 220 MUCH together with the control signal.

Also, the output processor 215 video introducing the DAC 218 and analog component signal after d/a conversion output in the component connector 221. Also, the analog composite video signal or a video signal Y/C)after d/a conversion output in composite video (or S connector) 222.

The operation of the playback system

The flow of the simulated actuator 203 of the disc, such as BD, DVD, etc. or drive hard disk 204 is injected into the processor 212 of the stream.

The processor 212 of the thread performs the allocation of the requested video stream and the analysis and then transmits this stream decoders 213 and 214 MPEG.

The video signal in the main line, decoded by the decoders 213 and 214 MPEG, injected into the processor 215 video.

The processor 215 video performs various kinds of processing a video signal, such as conversion processing in the requested frame size, and combines the video signal and the graphics signal, etc. and then outputs this signal in block 216 RSD processing.

Block 216 RSD processing is carried out is t the same processing OSB, as explained above.

Then the video signal in the main bandwidth, after processing OSB, passed in block 217 transmission MUCH. In block 217 transmission MUCH input video signal in the main strip is converted into a signal DSN and output connector 220 MUCH together with the control signal.

Also, the output processor 215 video introducing the DAC 218 and analog component signal after d/a conversion output in the component connector 221. Also, the analog composite video or Y/C separate video signal after d/a conversion output in composite video (or S connector) 222.

Thus, in time o choose among 8/10/12 bits, in accordance with the information of the connected device, obtained from RDID MUCH.

The selection is carried out for the output bits of the video signal in the main bandwidth, which has been subjected to processing OSB, as follows.

As described in the above-described playback system, the video signal in the main band decode using decoder 213 and 214 MPEG and then passed to the block 217 transmission MUCH through the processor 215 video and block 216 RSD processing.

Also, the main CPU 219 communicates with receiver 300 through the line 42 KDD cable 40 MUCH connected to the connector 220 MUCH.

As a result, the main CPU 219 receives the information display, the ROM 304 RDID through block reception MUCH, built-in receiver 300, and the main CPU 303.

If the receiver 300 connected via the cable 40 MUCH, corresponds to 12-bit input, the main CPU 219 device 200 recording and playback, which received the information, generates the instruction in block 216 processing RSD to form a 12-bit output.

If the receiver 300 is not only more than 8 bits, the main CPU 219 generates the instruction in block 216 processing RSD to form an 8-bit output and generates the corresponding bits through the connector 220 MUCH.

And then will describe the example device 300 reception, which took the flag definitions.

Block 302 receiving MUCH, which took the signal DSN, transmits the video signal in the main bandwidth of the first blocks 305 processing a television signal and the second block 306, the processing of a television signal.

The first processing blocks of a television signal performs normal processing, when the processing of RSD is not performed, and the second block 306, the processing of a television signal performs exceptional processing for a video signal in the main bandwidth, which was subjected to the treatment of RSD.

For example, the second block 306, the processing of a television signal passes through the input signal of 4:4:4, without conversion to 4:2:2, and thus can maintain the effect of RSD.

The main CPU 303 switches the switch block 07, in accordance with the flag definitions described above, and transmits a corresponding signal in the main bandwidth of the device 308 of the display.

As described above, when the device 200 to the recording and playback in accordance with this option perform displays the video signal in the main bandwidth, which was subjected to the treatment of RSD, the device 200 to the recording and playback passes the flag to determine together with the video signal in the main bandwidth. Accordingly, for a device of the consumer, it becomes possible to perform the optimum signal processing based on the information. As a result, for a user, it becomes possible to always enjoy the video with optimal image quality.

In this regard, described in detail above method can be executed as a program, in accordance with the process described above, and the program can be executed using a computer, such as CPU.

Also, such a program can be configured to run on a computer, which features a recording medium such as semiconductor memory, magnetic disk, optical disk, floppy disk (registered trademark), etc. and to this recording medium can be accessed.

The present application contains subject image is the shadow, related to that disclosed in the priority application JP 2008-284070 on Japanese patent application filed in Japan patent office on 5 November 2008, the full content of which is cited here as reference material.

For specialists in the art should understand that various modifications, combinations and podnominatsii and changes can be made, depending on design requirements and other factors, unless they are within the scope of the attached claims of the invention or its equivalents.

1. The information-processing device, comprising:
a processing system that performs processing of the original image; and a conversion unit gradation having a function for converting the gradation of the image data received from a processing system that converts the number of bits of the image data, and expressing pseudoscalar gray color before converting the gradation of the image with the converted gray scale, and the conversion unit gradation made with the possibility of changing the function of converting the gradation and performing conversion processing of the image, in which the conversion unit gradation adds and outputs the flag definitions, meaning if you have completed processing of the gradation conversion during the output of the image data.

2. The device processing the TCI information on p. 1, additionally containing transmission unit MUCH compliant MEPC, in which the conversion unit uses the specified gradation code defined by the standard MUCH as the flag definitions.

3. The information-processing device according to p. 1, additionally containing transmission unit MUCH compliant MEPC, in which the conversion unit gradation adds the specified command, in accordance with the specification determined by the standard MUCH, and uses this command as flag definitions.

4. A method of processing image, containing the following steps: perform the processing of the original image by using the processing system; carry out the conversion of the gradation using the gradation conversion function using the gradation conversion, which consists in converting the number of bits of the image data and the expression of pseudorca gray color before converting the gradation of the image with the converted gradation, in accordance with management of change; and add and remove flag definitions, meaning if you have completed processing of the gradation conversion during the output of the image data.

5. The data transmission system, comprising: a source device;
the device of the consumer; and
the cable connecting the source device and the device-user,
in which device is the source includes
a processing system that performs processing of the original image, and a conversion unit gradation having a function for converting the gradation of the received image data from the processing system, converting the number of bits of the image data and expressions pseudorca gray color before converting the gradation of the image with the converted grayscale, and the conversion unit gradation made with the possibility of changing the function of converting the gradation and performing conversion processing of the image
in which the conversion unit gradation adds and outputs the flag definitions, meaning if you have completed processing of the gradation conversion, while the output image data and device-user performs signal processing, which helps to maintain the effect of the conversion processing gradation, if the flag determination means that the processing of the gradation conversion has been performed.

6. The data transmission system according to p. 5, additionally containing transmission unit MUCH compliant MEPC, in which the conversion unit uses the specified gradation code defined by the standard MUCH as the flag definitions.

7. The data transmission system according to p. 5, additionally containing transmission unit MUCH compliant MEPC, in which the conversion unit gra the purpose adds the specified command in accordance with the specification certain standard MUCH, and uses this command as flag definitions.