Imaging device, imaging control method and programme

FIELD: physics.

SUBSTANCE: imaging device includes a display for displaying an image section and a video processing section for gradually lowering the output power to the image. The output power is gradually reduced for light radiation with a wavelength in the range of 446 nanometers to 483 nanometers of light radiation. And the gradual reduction is performed after the user observes the image.

EFFECT: reduction in the degree of the user fatigue who observes the colour image by gradually lowering the output power of a separate range of light waves, which does not cause degradation of the video signal display.

19 cl, 11 dwg

 



 

Same patents:

FIELD: physics, video.

SUBSTANCE: invention relates to demonstration and processing of images, particularly, to hue representation and/or display of colour range and can be used for production of high-quality images at target displays at preservations of creative concept. These images are converted for demonstration at target display. Note here that sigmoid function of conversion allows the free parameter that controls the contrast of medium hues. Conversion function can be dynamically corrected for adaptation to varying conditions of outer illumination. Conversion can be selected so that its adapts automatically the image data for demonstration target display so that, in fact, creative idea is preserved in said images.

EFFECT: higher efficiency of display of visual images.

13 cl, 6 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to digital imaging devices and particularly to systems and a method of processing image data obtained using the image sensor of a digital imaging device. An image signal processing system includes a pixel final processing unit, a pixel preprocessing unit and a pixel processing conveyor. The final processing unit receives pixel data of image brightness/chrominance after processing by one of the preprocessing unit and processing conveyor. The final processing unit is configured to apply a facial detection operation, local tone mapping, brightness, contrast and colour control, as well as scaling. The final processing unit also includes a final statistics processing unit which collects frequency statistics. The frequency statistics are provided to an encoder and used to determine sampling parameters to be applied to an image frame.

EFFECT: improved outward appearance of an image, achieved by increasing definition of the image without noise or artefacts.

20 cl, 142 dwg, 5 tbl

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to digital imaging means. The system comprises a pixel pre-processing unit comprising logic for collecting automatic white balance statistics and automatic exposure setup statistics, statistics collection logic comprising an input, colour space transformation logic and a set of pixel filters. The system also comprises control logic configured to determine a set of point white balance gain coefficients to apply to multi-colour raw frame pixels based on accumulated colour sum values.

EFFECT: high quality of the resultant image by eliminating artefacts in a full-colour image.

20 cl, 74 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to an ambient illumination system for a display device in which light sources are mounted on the periphery or back surface of the display device for emitting ambient light towards a wall behind the display device. The result is achieved due to that an input means receives colour information indicating the colour of the wall. A processor changes the colour of the emitted ambient light to the received colour information of the wall such that light reflected from the wall in the direction of the viewing region of the display device matches the screen colours of the display device.

EFFECT: wider range of technical capabilities of the ambient illumination system.

10 cl, 6 dwg

FIELD: information technology.

SUBSTANCE: method involves generating first improved image data by correcting first image data using a white balance correction value which corresponds to a flash light; generating second improved image data by correcting first image data using a second white balance correction value corresponding to external light; calculating the compound coefficient of each block based on the flash component and external light component of each of the blocks into which first image data are divided, and combining the first improved image data and second improved image data in accordance with the calculated compound coefficient.

EFFECT: forming an image which achieves suitable hue even when a flash light is emitted.

12 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: device generates data of a first improved image by correcting image data using a first white balance correcting value corresponding to a first light source, generates data of a second improved image by correcting image data using a second white balance correcting value corresponding to a second light source, calculates a colour estimate value for each unit by adding and averaging pixel colour estimate values in image data for each of separated unit, calculates the combination ratio based on the difference between the calculated colour estimate value for each unit and the white colour estimate value for the second light source, and combines data of the first improved image and data of the second improved image according to the calculated combination ratio.

EFFECT: correcting white balance while selecting the suitable hue, even in the presence of multiple light sources.

14 cl, 9 dwg

FIELD: information technologies.

SUBSTANCE: controlled light sources are provided, which are substantially point and are arranged in the massif, each is adapted to release a beam of light of at least one wavelength to the area that is visually demonstrated to a spectator, surrounding the display along the periphery. The image analyser determines the colour information from the video data of the displayed image, the colour information is used as a control parameter to control the colour of radiation of the released beams of light.

EFFECT: partial expansion of the image display area.

15 cl, 20 dwg

FIELD: physics, computer engineering.

SUBSTANCE: group of inventions relates to glasses. A display device includes a plurality of receiving units which receive each of various contents, a plurality of signal processing units which make up image frames by processing each of the contents, a display unit which arranges and displays image frames of each of the contents, a synchronising signal generating unit, an interface unit and a control unit which performs control in order to transmit a synchronising signal when at least one communication module performs an operation for connection with the glasses in accordance with a user command received from the glasses.

EFFECT: high efficiency of displaying different types of content to multiple users using one display device.

17 cl, 21 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering and specifically to systems for viewing video sequences. Disclosed is a device for identifying one or more key frames of a video sequence which includes a plurality of frames. The device includes a processor, a memory module containing a computer program code. The processor of the device receives a video sequence containing a plurality of frames and upon receiving each of at least some of the frames, but before receiving all frames, calculates an estimate for a frame in the form of a function of the value of each of one or more properties of the image of the frame. The processor also compares the estimate for the frame with a predefined threshold and initiates output of the frame as the key frame if the frame was received during a given period of time and the estimate for the frame was higher than the predefined threshold. Otherwise the processor initiates output as the key frame of one of the frames received during the given period of time if, during the given period of time, frame with an estimate higher than the predefined threshold were not received, wherein the corresponding one of the frames is the frame with the highest estimate among frames received during the given period of time.

EFFECT: providing automated selection of a key frame in a video sequence.

31 cl, 29 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to autostereoscopic display devices. The device comprises a display panel (3) having an array of display pixel elements (5), an imaging arrangement (9) which directs an output signal from different pixel elements to different spatial positions, having first and second polarisation-sensitive lens-raster arrays (50) and (52), wherein light incident on the imaging arrangement is controlled to produce one of the two possible polarisations.

EFFECT: high efficiency of effective resolution while maintaining the required switching rate.

14 cl, 10 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to means of reproducing a stereoscopic image from a recording medium. The device includes a unit for reading streaming data from a recording medium; a unit for decoding streaming data; a TS priority filter unit; a metadata processor and a plane integration unit. In the device, a main-view video stream, a sub-view video stream and a graphic stream are recorded on the recording medium; the main-view video stream includes a main-view image; the sub-view video stream includes a sub-view image and metadata; the graphic stream includes monoscopic image graphic data.

EFFECT: retrieving offset information from video stream information.

9 cl, 123 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to a playback device, a playback method and a programme storage medium, which provide a video format for 3D display. The playback device is configured to playback data of a data structure, comprising: image data used for 2D display of an auxiliary image comprising a header or a menu button, and a playlist file comprising a table in which, for said auxiliary image corresponding to said image data, shift information is described, which comprises the shift direction which is the direction of shift of an image L for the left eye and the image R for the right eye, used for 3D display of the auxiliary image, and a shift value which is a value of sift depending on the moment of playing back the auxiliary image.

EFFECT: displaying headers and menu buttons in 3D format.

7 cl, 30 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to techniques for playing back stereoscopic images. Disclosed is a computer-readable recording medium on which a base-view stream, a sub-view stream and control information are recorded. The base-view stream has a base-view video stream multiplexed therein, which makes up base-views of stereoscopic video images. The sub-view stream has a sub-view video stream multiplexed therein, which makes up sub-views of stereoscopic video images, wherein the sub-view video stream is encoded relative to the base-view video stream. The control information includes system rate of each of the base-view stream and sub-view stream. The computer-readable recording medium includes a long jump region which is one of the regions having at least a predetermined number of sectors and regions having an inter-layer boundary.

EFFECT: providing smooth playback of stereoscopic video images.

4 cl, 100 dwg

FIELD: physics, video.

SUBSTANCE: invention relates to stereoscopic video playback means. The method comprises forming a main-view video stream of stereoscopic video images, forming a sub-view video stream of stereoscopic video images, forming a data stream of monoscopic graphics images, generating playlist information; recording the main-view video stream, sub-view video stream, graphics stream and playlist information on a recording medium. In the method, the sub-view video stream includes a plurality of groups of images, each including metadata which include a plurality of shift information fragments and a plurality of shift identifiers, where the plurality of shift information fragments is in one-to-one correspondence with the plurality of shift identifiers.

EFFECT: high quality of playing back three-dimensional graphics images.

2 cl, 113 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to stereoscopic image playback means. The device comprises a control programme which selects the current header from a plurality thereof indicated in an index table; a display control unit which presets the rate of display of a display device by using information defining video data in an operating mode object of the current header; a platform for starting a bytecode application indicated in an application control table in the operating mode object of the current header; a graphics plane with graphics data drawn by the bytecode application; a unit for controlling playback of playlist video data.

EFFECT: fewer playback interruptions.

9 cl, 32 dwg

FIELD: physics, video.

SUBSTANCE: invention relates to means of distributing a video stream on a recording medium when playing back three-dimensional video. The device includes a reading unit for reading extent blocks from the recording medium, a switching unit which selects main and additional view streams from the extent blocks. In the device, each stream is stored in a reading buffer, a decoding unit reads and decodes each stream from the corresponding reading buffer, the time (t) required by the decoding unit to decode all data units in one extent block is greater than or equal to the sum (t1+t2+t3) of the time (t1) required to read data units except the initial data unit in the extent block, the time (t2) required to read the initial part of the next extent block from the end reading the end of the extent block and the time (t3) required to read the initial data unit in the next extent block.

EFFECT: ensuring continuity of playback by preventing buffer emptying.

5 cl, 85 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to means of playing back stereoscopic and monoscopic images. The device has a reading unit which successively reads a plurality of packets stored in a stream file; a demultiplexing unit for demultiplexing packets with predetermined packet identifiers, a decoder for decoding packets demultiplexed by the demultiplexing unit. In the device, in stereoscopic playback mode, the demultiplexing unit uses packet identifiers indicated by stream records associated with stream numbers from a list of elementary streams in an extended stream selection table.

EFFECT: providing stream attribute identity when changing playback modes.

7 cl, 105 dwg

FIELD: physics, video.

SUBSTANCE: invention relates to devices of transmission of three-dimensional video signal to a terminal device. The method contains stages of determination of the depth metadata indicating the depths used in 3D video image data, generation of 3D video image signal containing these 3D video images, inclusion of depth metadata into 3D video image signal to make it possible for the terminal 3D device to retrieve depth metadata, provide auxiliary data, locate auxiliary data at the auxiliary depth depending on the retrieved metadata for display of auxiliary data in a combination with 3D video image data.

EFFECT: improvement of accuracy of combining of auxiliary data and 3D video content.

13 cl, 10 dwg

FIELD: physics, optics.

SUBSTANCE: apparatus for generating stereoscopic images comprises an objective lens for forming an image of an object in the form of a real image or an imaginary image, as well as a plurality of optical image-forming systems which form a plurality of light streams of an object from capturing, which are output on different paths from the optical system of the objective lens and then in the form of images with parallax, using a plurality of independent optical systems. The focal distance of the objective lens and the distance (L) from the rear principal point of the optical system of the objective lens to the front principal point of the optical image-forming system satisfy the relationship: |f/(L-f)|≤1, where the value of the focal distance is positive when the optical system of the objective lens forms an image of the object in the form of a real image, and the value of the focal distance is negative when the optical system of the objective lens forms an image of the object in the form of an imaginary image.

EFFECT: maintaining image quality during stereoscopic capturing, when the captured object and the imaging apparatus are located at a finite distance.

2 cl, 26 dwg

FIELD: physics, video.

SUBSTANCE: invention relates to video data processing means. The method includes generating an entry point table; defining entry points in the video data stream with a certain a distance in time from each other to facilitate trick play; storing the defined entry points in the entry point table by storing addresses thereof. In the method, the video data stream comprises a plurality of sub-streams representing one stream of 3D video data and comprises a 2D sub-stream which comprises an independently encoded 2D version of the 3D video data and an auxiliary sub-stream comprising a dependently encoded part of the 3D video data. In the method, defining the entry points comprises associating the entry point table with 3D video data by defining main entry points in the 2D sub-stream and auxiliary entry points in the auxiliary sub-stream.

EFFECT: high quality of display during 3D trick play.

24 cl, 11 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to autostereoscopic display devices. The device has both a barrier structure and a lens structure. A plurality of projections to different lateral viewing directions is provided. Barrier openings are relatively narrow and the barrier structure is made such that light from a pixel reaches only one barrier opening. At least part of the viewing field has an autostereoscopic output image, and the part having an autostereoscopic output image does not have any repetitions of separate two-dimensional projections and has at least three separate two-dimensional projections.

EFFECT: eliminating visibility of boundaries of the viewing cone on a multi-view autostereoscopic display.

17 cl, 31 dwg

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