Circuits for processing colour signals and and (H04N9/64)

H   Electricity(224831)
H04N9        Details of colour television systems(844)
H04N9/64                     Circuits for processing colour signals (h04n0009770000 takes precedence);;(63)

ethod and device for colour adjustment // 2628532
FIELD: physics.SUBSTANCE: method of colour adjustment is proposed, and it comprises: obtaining frame data from a frame buffer; converting the frame data from the original colour space to the linear original colour space by a reverse gamma correction process to obtain the frame data in the linear original colour space; converting the frame data in the linear original colour space to a linear target colour space to obtain frame data in the linear target colour space; and performing gamma correction of the frame data in the linear target colour space using the target gamma coefficient to obtain the frame data in the target colour space.EFFECT: in the invention by performing the inverse data frame gamma correction process from a frame buffer, transformation past inverse gamma correction on frame data in the linear target colour space and performing the frame data to gamma correction in the linear target colour space for receiving the frame data in the target colour space, solved the problem of inconsistent effects display of the same data frame to multiple devices, the effect is realised in accordance to coordinated display and the same data shot on different devices.9 cl, 5 dwg

easurement method, computer program, and measurement system // 2599342
FIELD: information technology.SUBSTANCE: invention relates to color management of display devices. Measurement device connected to an optical sensor, can communicate with a target display device, to be measured. Measurement device transmits content, including a color patch to the display device to cause the display device to display the content and performs a measurement on the displayed content using the optical sensor. To perform measurements on many color patches, the measurement device repeats the following: when a measurement on one color patch being displayed is complete, the measurement device transmits content including another color patch to the display device to cause the display device to display the content and performs a measurement on the content being displayed.EFFECT: technical result consists in providing the possibility of measuring colour rendition display devices irrespective of technical characteristics of the display device.16 cl, 12 dwg

Compressing video data without visible losses // 2504107
FIELD: information technology.SUBSTANCE: disclosed is an apparatus and a method of compressing video data YUY (or YCrCb) for storage in memory or decompression after obtaining blocks from memory. Compression is performed using a quantiser for compressing video data to the required overall compression coefficient R, even if the input of brightness and colour data into the overall compression differ for each sub-block, each preferably selected in accordance with the texture estimate. Selection is performed for each sub-block to perform either linear or nonlinear quantisation during compression. Compression is performed without using data from blocks obtained outside the compressed block, wherein video data blocks may be obtained and restored in any required order. As an alternative, an encoder directly selects blocks from memory, which are then restored and encoded.EFFECT: reduced required bus bandwidth or storage size and memory for video data streams.20 cl, 17 dwg

Image processing device and image processing method for correcting chromatic aberration // 2496253
FIELD: information technology.SUBSTANCE: result is achieved by obtaining an image having a plurality of colours, obtaining a shift value of light flux of a second colour relative to light flux of a first colour, the shift value being determined by optical characteristics of a lens through which the light flux is transmitted to an image capturing unit, interpolating the signal level of the second colour in aberration coordinates from the signal level of pixels, having a second colour, around aberration coordinates, extracting the high-frequency signal level of the first colour of a target pixel in accordance with the degree of reduction of the high-frequency signal level in the signal level of the second colour in aberration coordinates, outputting, as the signal level of a pixel of second colour in the target pixel, a signal level obtained by adding the signal level extracted at the high-frequency extraction step to the signal level of the pixel of second colour, calculated at the shift correction step.EFFECT: correcting chromatic aberration of a lens with restoration of high-frequency components lost due correction of colour position shift, for which position shift correction is performed.9 cl, 11 dwg

Device for coding of images, device for decoding of images, method for coding of images and method for decoding of images // 2479148
FIELD: information technologies.SUBSTANCE: decoding stage is carried out to decode the first identifying information, which indicates whether signals of appropriate colour components are independently coded, and to decode the second identifying information in the case when the first identifying information indicates that signals of appropriate colour components are coded independently, the second identifying information indicates whether all colour components are intra-coded, besides, in the case when the first identifying information indicates that signals of the appropriate colour components are coded independently, and the second identifying information indicates that all images of appropriate colour components are intra-coded, the decoding stages generates a decoded image, in which performance of deblocking filtration is off at each border between blocks serving as elements of conversion and quantisation.EFFECT: improved optimality and efficiency of decoding in case when coded signals of a dynamic image do not have a difference in respect of a number of counts between colour components.15 dwg

Video display device // 2477010
FIELD: information technology.SUBSTANCE: image processing circuit corrects colour in a predetermined colour range so that it is corrected such that it partially includes the reference range of red hue, lying in the centre of the colour range of the constant hue, lying from the achromatic colour which is the colour of the lowest saturation in the extended colour reproduction region, to the red colour having the highest colour saturation in the extended colour reproduction range, but does not include red colour having the highest colour saturation in the extended colour reproduction range. At that moment, the image processing circuit corrects said colour such that its hue is replaced with hue lying close to the yellow colour in the extended colour reproduction range, and hue from the reference range of red hue is replaced with red colour hue in the sRGB standard colour reproduction range, and further, the value by which the hue changes to hue lying close to the yellow colour is less than the colour lying further from the reference range of red hue in the extended colour reproduction range than for the colour lying close to the reference range of red hue in the extended colour reproduction range.EFFECT: providing a video display device capable of displaying video using a display with a wide colour gamma based on a video signal corresponding to a standard having a narrower colour reproduction range than the range of the display with a wide colour gamma, while solving the problem of hue shift when displaying red colour with average saturation.3 cl, 9 dwg

Image encoding method, image decoding method, image encoder and image decoder // 2447611
FIELD: information technology.SUBSTANCE: in an image encoding system compression processing is applied to an input image signal, comprising multiple colour components, encoded data obtained after independent encoding processing of the input image signal for each of the colour components, and the parameter that indicates which colour component corresponds to encoded data is multiplexed with the bit stream.EFFECT: higher encoding efficiency and providing possibility to include data for one image in one access unit, and establish identical time information and single encoding mode for corresponding colour components.6 cl, 25 dwg

Controlling diffused illumination from video data category // 2430492
FIELD: information technology.SUBSTANCE: when controlling a diffused illumination element, the category of data displayed by the unit is identified. Diffused illumination data associated with the identified category are extracted and the extracted diffused illumination data are displayed according to the displayed data. The extracted diffused illumination data can be a diffused illumination script which can determine temporary parts of the diffused illumination data. Diffused illumination data can be associated with a category based on user input. A data subcategory can be identified and diffused illumination data can be modified with additional diffused illumination data associated with the subcategory. Association of the category with diffused illumination data can be edited by the user. Default association of the category with diffused illumination data can be provided.EFFECT: eliminating the direct link between the diffused illumination effect and context of the displayed video.18 cl, 3 dwg

Video converter, video display and video conversion method // 2430487
FIELD: information technology.SUBSTANCE: secondary video signal is generated, said signal being composed of signals having values derived via conversion of intermediate values into values lying inside an output range according to a predetermined conversion rule when intermediate brightness values (determined by formulas where Smin is the output value of the lower limit, Xr to Xb are values of RGB signals of the main video signal, k is a constant, and Lr to Lb are intermediate values of RGB brightness), include a value greater than the value of the upper output limit, otherwise a secondary video signal consisting of a signal having an intermediate brightness value is generated.EFFECT: preventing gradation error when a given video signal shows colour in a region outside the colour range of the video display element, performing signal conversion processing with low arithmetic load.16 cl, 7 dwg

Tone mapping for bit-depth scalable video codec // 2430484
FIELD: information technology.SUBSTANCE: scalable video codec converts lower bit depth video data to higher bit depth video data using decoded lower bit depth video data for tone mapping and tone mapping derivation. The conversion can also be used for filtered lower bit depth video data for tone mapping and tone mapping derivation.EFFECT: high encoding efficiency.7 cl, 3 dwg

Event-based ambient illumination control // 2427986
FIELD: physics.SUBSTANCE: when controlling an ambient illumination element, a host event is detected, a light script associated with the detected event is retrieved and the retrieved light script is rendered in accordance with the detected event. A user may associate the light script with the event and/or an event type which corresponds to the event. A default association of events and/or event types may be provided, although these default associations can be modified by the user. An event type which corresponds to the event can be identified and a light script associated with the identified event type can be rendered in response to the detected event.EFFECT: reduced viewer fatigue and improved realism and depth of experience.20 cl, 3 dwg

Image encoder and image decoder, image encoding method and image decoding method, image encoding programme and image decoding programme and computer readable recording medium on which image encoding programme is recorded and computer readable recording medium on which image decoding programme is recorded // 2426269
FIELD: information technology.SUBSTANCE: image encoder includes the following: a predicted-image generating unit that generates a predicted image in accordance with a plurality of prediction modes indicating the predicted-image generating method; a prediction-mode judging unit that evaluates prediction efficiency of a predicted image output from the predicted-image generating unit to judge a predetermined prediction mode; and an encoding unit that subjects the output signal of the prediction-mode judging unit to variable-length encoding. The prediction-mode judging unit judges, on the basis of a predetermined control signal, which one of a common prediction mode and a separate prediction mode is used for respective colour components forming the input image signal, and multiplexes information on the control signal on a bit stream.EFFECT: high optimality of encoding the signal of a moving image.4 cl, 86 dwg

Image encoding method, image decoding method, image encoder and image decoder, and encoded image bit stream, and recording medium // 2426268
FIELD: information technology.SUBSTANCE: image includes, when applying encoding processing to three colour components using the 4:0:0 format, data for one image into one access module, which enables to establish the same time information or identically established encoding modes for corresponding colour components. In an image encoding system for applying compression processing to an input image signal, comprising multiple colour components, encoded data obtained after independent encoding processing of the input image signal for each of the colour components, and the parameter that indicates which colour component corresponds to encoded data is multiplexed with the bit stream.EFFECT: high encoding efficiency owing to use of a single encoding mode for corresponding colour components.2 cl, 25 dwg

Image signal processing device // 2426176
FIELD: information technology.SUBSTANCE: invention relates to an image signal processing device, which enables to reproduce the appearance of an image on a plasma display panel (PDP), using other display devices such as a cathode-ray tube or liquid-crystal display (LCD), while processing signals. In an image processing module, such processing for an image signal for which an image received when the image signal is displayed in a display device of another type besides a PDP, may seem like an image displayed on a PDP. At least one reproduction colour shift is performed, which is associated with a moving image which forms as a result of that, RGB glow is included in the said order of reproduction, smoothing structure used in the direction of space, reproduction of the smoothing structure used in the direction of reproduction time, the interval between pixels, and reproduction of an array of strips. The invention can be used when, for example, an image which must look like an image displayed on a PDP, is displayed on an LCD.EFFECT: possibility of obtaining a type of image on a plasma panel display reproduced on another display different from the plasma panel display such as a liquid-crystal display, while processing signals.6 cl, 20 dwg

Device for coding of dynamic images, device for decoding of dynamic images, method for coding of dynamic images and method for decoding of dynamic images // 2400941
FIELD: information technologies.SUBSTANCE: it is suggested to do coding and decoding uniformly for multiple colouration formats. Based on control signal providing for type of colouration format of inlet signal from dynamic image, if colouration format is 4:2:0 or 4:2:2, the first unit of prediction mode detection with intra-coding and the first unit of predication image coding with intra-coding are applied to component of dynamic image inlet signal colouration component, and the second unit of prediction mode detection with intra-coding and the second unit of prediction image formation with intra-coding are applied to colouration component. If colouration format is 4:4:4, the first unit of prediction mode detection with intra-coding and the first unit of prediction image formation with intra-coding are applied to all colour components to do coding, and unit of coding with alternating length multiplexes control signal as data of coding, which should be applied to element of dynamic image sequence in bitstream.EFFECT: improved mutual compatibility between coded video data of various colouration formats.12 cl, 24 dwg

Image encoding device, imade decoding device, image encoding method and image decoding method // 2369039
FIELD: information technology.SUBSTANCE: invention relates to encoding and decoding digital images. A device is proposed for encoding/decoding a dynamic image, in which during compressed encoding through input of data signals of the dynamic image in 4:4:4 format, the first encoding process is used for encoding three signals of colour components of input signals of the dynamic image in general encoding mode and the second encoding process is used for encoding three signals of colour components input signals of the dynamic image in corresponding independent encoding modes. The encoding process is carried out by selecting any of the first and second encoding processes, and compressed data contain an identification signal for determining which process was selected.EFFECT: more efficient encoding dynamic image signals, without distinction of the number of readings between colour components.18 cl, 15 dwg

Selection of dominating colour with application of perception laws for creation of surrounding lighting obtained from video content // 2352081
FIELD: information technologies.SUBSTANCE: method is suggested for selection and processing of video content, which includes the following stages: quantisation of colour video space; making selection of dominating colour with application of mode, median of average or weighted average of pixel colorations; application of perception laws for further production of dominating colorations by means of the following steps: transformation of colorations; weighted average with application of pixel weight function affected by scene content; and expanded selection of dominating colour, where pixel weighing is reduced for majority pixels; and transformation of selected dominating colour into colour space of surrounding light with application of three-colour matrices. Colour of interest may additionally be analysed for creation of the right dominating colour, at that former video frames may control selection of dominating colours in the future frames.EFFECT: creation of method to provide imitating surrounding lighting by means of dominating colour separation from selected video areas, with application of efficient data traffic, which codes averaged or characteristic values of colours.20 cl, 43 dwg

Device and method of image information coding, and also device and method of image information decoding // 2350041
FIELD: information technologies.SUBSTANCE: invention concerns systems of coding/decoding of the squeezed image with the use of orthogonal transformation and forecasting/neutralisation of a motion on the basis of resolving ability of builders of colour and colour space of an input picture signal. The device (10) codings of the information of the image the forecastings (23) block with interior coding is offered is intended for an adaptive dimensional change of the block at generating of the predicted image, on the basis of the signal of a format of chromaticity specifying, whether is resolving ability of builders of colour one of the format 4:2:0, a format 4:2:2 and a format 4:4:4, and a signal of the colour space specifying, whether the colour space one of YCbCr, RGB and XYZ is. The block (14) orthogonal transformations and the quantization block (15) are intended for change of a procedure of orthogonal transformation and quantization procedure according to a signal of a format of chromaticity and a signal of colour space. The block (16) of return coding codes a signal of a format of chromaticity and a signal of colour space for insert of the coded signals gained, thus, in the squeezed information of the image.EFFECT: increase of image coding and decoding efficiency.125 cl, 12 dwg, 1 tbl

Device for image processing, method for image processing and computer program // 2338330
FIELD: information technologies.SUBSTANCE: device and method are suggested which are intended for effective correction of wrong colour, such as purple fringe, created as a result of chromatic aberration, and for generating and output of high quality image data. Pixel with saturated white colour is detected from image data, at that in the area around detected pixel having saturated white colour the pixel of wrong colour and pixels having colour corresponding to wrong colour such as purple fringe are detected out of specified area. Detected pixels are determined as wrong colour pixels, and correction processing on the base of surrounding pixels values is performed over detected wrong colour pixels.EFFECT: design of image processing device which allows to detect effectively an area of wrong colour.25 cl, 22 dwg

ethod and device of colour image coding/decoding using chroma signal components correlation // 2336663
FIELD: physics.SUBSTANCE: invention concerns image processing technology, particularly YCbCr-format colour image data coding/decoding to smaller data volume by finding correlation between Cb and Cr chroma signal components of colour image data. The invention claims colour image coding method involving stages of: chroma signal component conversion in each of two or more mutual prediction modes; cost calculation for conversion values in each of two or more mutual prediction modes with the help of cost function defined preliminarily; selection of one or more mutual prediction modes on the basis of calculation result and conversion value output for the selected mutual prediction mode; entropic coding of output conversion values, where preliminarily defined cost function is selected out of cost function defining distortion in dependence of transfer rate, function of absolute subtract value amount, function of absolute converted subtract, function of square subtract sum and function of average absolute subtract.EFFECT: increased efficiency of image coding.88 cl, 23 dwg

ethod for processing images // 2317587
FIELD: image processing systems, in particular, methods and systems for encoding and decoding images.SUBSTANCE: in accordance to the invention, input image is divided onto several image blocks (600), containing several image elements (610), further image blocks (600) are encoded to form encoded representations (700) of blocks, which contains color code word (710), intensity code word (720) and intensity representations series (730). Color code word (710) is a representation of colors of elements (610) of image block (600). Intensity code word (720) is a representation of a set of several intensity modifiers for modification of intensity of elements (610) in image block (600), and series (730) of representations includes representation of intensity for each element (610) in image block (600), where the series identifies one of intensity modifiers in a set of intensity modifiers. In process of decoding, code words (710, 720) of colors and intensity and intensity representation (730) are used to generate decoded representation of elements (610) in image block (600).EFFECT: increased efficiency of processing, encoding/decoding of images for adaptation in mobile devices with low volume and productivity of memory.9 cl, 21 dwg, 3 tbl

ethod and device for video encoding and decoding scalable across color space // 2316909
FIELD: method and device for video encoding and decoding which is scalable across color space.SUBSTANCE: in the method, encoder may inform decoder about position of brightness data in bit stream, and decoder may transform colored image to halftone image when necessary. In accordance to the invention, brightness data are serially inserted from all macro-blocks contained in a section, into bit stream, chromaticity data are inserted serially from all macro-blocks contained in a section, into bit stream, after inserted brightness data and bit stream which contains inserted brightness data and chromaticity data is transmitted.EFFECT: creation of method for video encoding and decoding which is scalable across color space.4 cl, 12 dwg

System for finding a first object, hidden by second object, method for visual display of first object and method for showing data of first object on display screen // 2308761
FIELD: engineering of systems for analyzing digital images, and, in particular, systems for showing hidden objects on digital images.SUBSTANCE: in accordance to the invention, method is claimed for visual display of first object, hidden by second object, where first object has color contrasting with color of second object, and second object is made of material letting passage of visible light through it, where amount of visible light passing through second object is insufficient for first object to be visible to human eye. The method includes production of digital image of first and second objects with usage of visible light sensor. Digital data of image, received by computer system, contains both data of first object and data of second object, where data of first object and data of second object contains color information, and value of contrast between first and second objects must amount to approximately 10% of full scale in such a way, that along color scale of 256 levels the difference equals approximately 25 levels, then data of second object is filtered, after that values, associated with data of first object, are increased until these values become discernible during reproduction on a display.EFFECT: creation of the method for showing hidden objects in digital image without affecting it with special signals.3 cl, 6 dwg

Color television set // 2246800
FIELD: radio communications; color television sets.SUBSTANCE: novelty is that proposed color television set that has radio channel unit, horizontal sweep unit, vertical sweep unit, chrominance unit, sound accompaniment unit, and color picture tube is provided in addition with three identical line doubling channels, pulse generator, and switch, second set of three planar cathodes mounted above first set and second set of three cathode heaters are introduced in its color picture tube. Reproduced frame has 1156 active lines and 1 664 640.5 resolving elements.EFFECT: enhanced resolving power.1 cl, 5 dwg, 1 tbl

The method of correction non-linear pre-emphasis color-difference signals of the secam and device for its implementation // 2206184
The invention relates to techniques for color television and can be used in the decoder SECAM color TVs and video devices

The device on-screen display system for processing digital video signal // 2146854
The invention relates to a digital device screen display system for processing digital video signal and, in particular, for a system for processing digital video signal in which the digital video signals represent information about the image in compressed form

The device on-screen display system for processing digital video signal // 2141173
The invention relates to a digital device screen display system for processing digital video signal and, in particular, for a system for processing digital video signal in which the digital video signals represent information about the image in compressed form
 
2551261.
Up!