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Image processing device, image capturing device and image processing method Invention relates to image processing and reconstruction means. The device comprises a first means for pixel interpolation of a reference colour component of a RAW image; a first means of obtaining colour contrast using a pixel value of a colour component and a pixel value of the reference colour component; an image reconstruction processing means based on a function representing aberration of the optical image-forming system to each colour component of the RAW image; a second means for pixel interpolation of the reference colour component of the RAW image; a second means of obtaining a second colour contrast using a pixel value of said colour component and a pixel value of the reference colour component; a means of correcting the pixel value of the RAW image according to the difference between the first colour contrast and the second colour contrast. |
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Image processing device and image processing method Group of inventions relates to image processing technologies. An image processing device for reconstruction processing for correcting image quality deterioration due to aberration in an optical image-forming system. The image processing device comprises a dividing means for dividing image data of colours of colour filters into image data of corresponding colours of colour filters. The device also includes a plurality of image processing means, each designed to perform reconstruction processing by processing using an image data filter of one of the corresponding colours divided by said dividing means. |
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Image processing device and control method for image processing device Image processing device stores in memory first image data having the highest frequency among a plurality of image data fragments of different frequency ranges in a state in which each pixel of the first image data includes a colour component signal of any of a plurality of colours, and further stores in memory second image data and third image data whose frequency ranges are lower than that of the first image data, in a state in which some or all pixels of the second and third image data have colour component signals of a plurality of colours. |
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Method for complexion digital multispectral images of earth's surface Invention relates to means of processing location images of the earth's surface. The method comprises determining the most informative image by calculating characteristic entropy of each image, calculating the morphological shape of the most informative image based on histogram segmentation with a given number of histogram modes, calculating the morphological projections of the rest of the images on the shape of the most informative image. Complexion is then carried out by summing pixel brightness of the most informative image which is taken as the basic image, and projections of the rest of the images on the shape of said image. |
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Method of converting and processing digital image based on multi-centre scanning Invention relates to digital image processing means. In the method, a multi-centre scanning (MCS) initial mesh is represented by a discrete square of nine cells; the initial mesh is scanned from the centre to the edge of the square and then while bypassing the remaining meshes around a circle; the priority is the path with the bypass direction to the left side from the centre of the square and then clockwise; the formed structure is a facet (pFas), where p is the recursion step, if p=1, the initial mesh described above is present; four types of bypassing are distinguished to construct the furthest recursion directions: bypass w1 as the initial (1Fas1), bypass w2 as the mirror from 1Fas1 to the left side (1Fas2), bypass w3 as the mirror from 1Fas2 upwards (1Fas3), bypass w4 as the mirror from 1Fas3 to the right side; bypass is performed successively with initial movement to the square to the left from 1Fas and then clockwise around 1Fas. |
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Device and method for high-resolution imaging at built-in device In compliance with this invention, sequence of images including multiple lower-resolution images is contracted. Vectors of motion between reference image in sequence and one or several nest images in sequence are defined. The next forecast image is generated by application of motion vectors to reconstructed version of reference image. Difference between next actual image and next forecast image is generated. Image in sequence from set to set is decoded and SR technology is applied to every decoded set for generation of higher-resolution image by rime interpolation and/or spatial interpolation of reference and difference images. Compression of sequence of images includes steps of determination of vectors of motion between reference image and at least one of extra image of sequence of images. Note here that obtained vector of motion is applied to forecast at least one extra image to calculate difference in mages between at least one extra image and forecast of at least one extra image, respectively. |
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System and method of converting hue of flat and three-dimensional images Method involves selecting a hue conversion function based on analysis of distribution of hue of elements of the entire image, varying parameters of the hue conversion function for each image element based on analysis of said distribution of the local surrounding region, where parameters are varied gradually for neighbouring image elements; and converting hue of each image element using the hue conversion function with parameters obtained for that image element. |
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Automatic photograph retouching method Automatic photograph retouching method involves creating a data array from photographs of different themes of classes, creating a database of references therefrom by interactive processing, based on Photoshop CS2, of predefined textures which give a comfortable perception of images of objects on the photographs, constructing a function of a photometric correction signal between the original and reference photographs, determining barcodes of the original photograph and the reference photograph by decoding brightness I(x,y) of matrices of images with the size |m×n| of elements in the matrix of intensities of tonal transitions with dimensions ||k×k|| of elements of the original and reference retouched photographs, algebraic subtraction of the matrix of barcodes while setting a threshold for positive identification of the reference, creating a reference address with barcode extension therefrom, a threshold difference and a photometric correction signal function, automatic search of the reference for the analysed photograph and retouching thereof based on the calculated barcode at the address in a reference database and the photometric correction signal function. |
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Images are produced in a multi-level codec of the first flow with the first dynamic range and the first colour space, and the second flow of the image with the second dynamic range. The first flow of the image is produced by performance of a local tonal display on the second flow of the image, using the functional form that displays a family of curves of the tonal image, parametrised by means of one parameter, besides, the first dynamic range is less than the second dynamic range, and the first flow of the image is in the base layer, and the second flow of the image is in the expansion layer. The multi-level codec includes a decoder and a coder. The first flow of the image is coded in the base layer using a coder to produce the coded first flow of the image. The coded first flow of the image is decoded using a decoder to produce a decoded first flow of the image. The decoded first flow of the image is converted from the first colour space into the second colour space of the second flow of the image to produce the colour first flow of the image. Parameters of the reverse tonal image are generated on the basis of the converted colour flow of the image and the second flow of the image, where parameters of the reverse tonal image approximate the second flow of the image when applied to the converted colour flow of the image. |
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Method and device for filling occluded areas of depth or disparity map estimated from two images Method involves pixel by pixel browsing of each line of the depth or disparity map, formed by a pixel matrix, in a predefined direction and assigning each invalid pixel encountered on a current line a value determined as a function of pixel values associated with a predefined vicinity around the first valid pixel that follows the invalid pixel on the current line and the value of which corresponds to a greater depth or a lesser disparity relative to the value of the last valid pixel. |
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Device for enhancing quality of facial images of people in video sequences Device includes an input lens, a memory unit, a bus, a video sensor, a movement estimation unit, a frequency divider and video sensor resolution selection unit, a unit for single-step enhancement of the whole frame, a clock frequency generator unit, a unit for selecting faces of people, a unit for iterative enhancement faces of people, an image combining unit and a conflict resolver. |
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Visualisation of vascularisation Group of inventions relates to medicine, visualization of vessels and their connection with pathological changing. Data of 3-dimensional image, reflecting spatially changing degree of connection of vessels between areas of data in 3-dimensional image and pathological changing, are created. Data can be represented by means of displaying maximal intensity projection (MIP), where image brightness represents degree of vessel participation in blood supply of pathological changing. Corresponding computer-readable carriers are used in method realisation. Described methods of visualisation can be useful in visualisation of connectedness with structures which are not pathological changes, and in visualisation of connectedness which is not connectedness of vessels. |
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Method and device to reduce noise in video image In some versions of realisation in a method of video sequence treatment: an input video sequence is received, having resolution of the input video sequence; an image of the input video sequence is aligned; noise is reduced in aligned images; and an output video sequence is generated from images with reduced level of noise, in which the output video sequence has the same resolution as the resolution in the input video sequence. |
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For matrix transformation of video images, characterised by selection of a generating matrix and subsequent formation of a non-orthogonal matrix of a given size, the generating matrix selected is an isosceles Pascal triangle with size of lateral sides equal to given dimensions of the formed matrix, and the non-orthogonal matrix is formed by filling the selected Pascal triangle on rows which are parallel to the base of the triangle. |
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Image processing apparatus, method and program Deblocking filter 113 adjusts the value of disable_deblocking_filter-idc, slice_alpha_c0_offset_div2 or slice_beta_offset_div2 based on the Activity of an image calculated by an activity calculation unit 141, the total sum of orthogonal transformation coefficients of the image calculated by an orthogonal transformation unit 142, Complexity of the image calculated by the rate control unit 119, or the total sum of prediction errors of the image calculated by a prediction error addition unit 120. |
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Disclosed is a method of forming a composite image based on a separate image, wherein a separate image is obtained, the separate image is compared with a composite image, a mismatch value is obtained based on pixel-by-pixel comparison of the separate image and the composite image, and the mismatch value is decreased by changing at least the combined image or the separate image. |
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Video camera has a portable housing having a light focusing lens, a light-sensitive device which converts the focused light into source video data, a storage device installed in the housing, and an image processing system configured to introduce predistortions into the source video data and compression thereof, wherein the compressed source video data remain essentially visual without loss after decompression, and also configured to store compressed source video data in the storage device. |
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Method of obtaining digital image with large dynamic range Invention relates to a technique of obtaining digital images of an object, primarily for aerographic and reconnaissance purposes. An image with a large dynamic range is formed by summing images of an object obtained at different exposures, which are modified to the real brightness. The value of the parameter which determines capturing efficiency is determined for each pixel of each image. The most informative elements of each image are assigned the maximum weight coefficient during summation. |
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Device, method and software to process images with higher sharpness Image processing device is implemented with higher sharpness, containing a smoothing facility to smoothen brightness of an input image; a subtracting facility to subtract a smoothened image from the input image brightness; a calculating facility related to brightness of the amplification ratio to calculate the amplification ratio related to brightness from the input image; the first multiplying facility to multiply a differential image and the amplification ratio related to brightness; a summation facility to add the multiplication result to the input image brightness; a facility to calculate a colour contrast amplification ratio to calculate the colour contrast amplification ratio from the colour contrast of the input image and the amplification ratio related to brightness; the second multiplication facility to multiply the colour contrast of the input image and the colour contrast amplification ratio. |
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To bring separate single-pixel indicators and separate logic pixels into conformity, a control table is used, which determines the order of displaying image data on the screen of a display device. One single-pixel indicator and one logic pixel correspond to an arbitrary element of the control table. An indicator of a defined colour is activated to generate light flux according to data of the same colour selected from the logic pixel. Selection of these data from the logic pixel and activation of that single-pixel indicator are repeated at high speed. The order of arrangement on the image data plane of geometric centres of non-overlapping or partially overlapping groups from the plurality of logic pixels coincides with the order of arrangement on the surface of the screen of the display device of conditional geometric centres of non-overlapping groups from the plurality of single-pixel indicators, which (groups from a plurality of single-pixel indicators) correspond to those groups from the plurality of logic pixels. Each group from the plurality of logic pixels mutually explicitly corresponds to a group from the plurality of single-pixel indicators. To increase brightness of the image displayed on the screen of the display device, that screen contains white-colour single-pixel indicators which are activated to generate light flux according to data calculated based on data contained in logic pixels which correspond to those white-colour single-pixel indicators. |
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Method of enhancing digital images Source RGB image is obtained; RGB image noise is filtered; global contrast of the RGB image is adjusted; a brightness component from R,G,B components is extracted from the colour image by transforming the RGB into a three-component colour system. Shadow tones of the image are adjusted by adding to brightness values of each image pixel the product of the difference between pixel brightness values, which corresponds to the image of details in the shadow tones, and the image pixel brightness, inverting the doubled result of bilateral filtration in the dark half of the image brightness range, raised to a power which determines the width of the tonal range, and the amplification coefficient of the shadow tones. |
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Method of integrating digital grayscale television and thermal images Method of integrating digital grayscale television and thermal images involves obtaining original images, performing imaging integration based on criteria summation for each pixel, formation of a resultant image and normalisation of the brightness range of the image. Average brightness is calculated for all brightness values of pixels of the second channel image, as well as the average value of absolute difference between the average brightness value of the second channel image and brightness values of all pixels of the second channel image. For each pixel of the integrated image, the sum of the brightness value of the pixel of the main channel image and the absolute difference of the brightness value of the second channel image and the average brightness of the second channel image is calculated; the average value of the absolute difference of the brightness of the pixels of the second channel image and the average brightness of the second channel image are subtracted from the obtained sum. |
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Error adaptive functional imaging Method for use in functional medical imaging involves adaptively partitioning functional imaging data as a function of a spatially varying error model. The functional image data are partitioned according to an optimisation strategy. The data may be visualised or used to plan a course of treatment. In one version, the image data are partitioned so as to vary their spatial resolution. In another version, the number of clusters is varied based on the error model. |
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Presence or absence of a point in the first colour signal X of the second image B, which corresponds to each pixel position of the first colour signal X of the first image A is evaluated, and the position of the relevant corresponding point is also evaluated. For each of the evaluated pixel position in the colour signal Y of image A, image information of the corresponding position in the colour signal Y of the second image B is assigned. The colour signal Y is generated in the pixel position on image A, for which evaluation on the absence of the corresponding point was obtained, through image interpolation using image information of the colour signal Y assigned to pixels having the corresponding points. |
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Image data are formed in image C by using image A and image B, having a higher bit depth than image A. Image C, having the same bit depth as image B, is formed by increasing bit depth of image A through superposition of hue maps. Presence or absence of points on image B corresponding to each pixel position in image C, as well as the position of the relevant corresponding point is determined. Each pixel position on image C, for which it was determined that the corresponding point exists, is assigned image data from the corresponding position on image B. Possibility of forming image data at each pixel position on image C, for which, during evaluation of the corresponding point, it was determined that the corresponding point does not exist, is facilitated by using image data assigned according to the evaluation result, consisting in that the corresponding point exists. |
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Method to process infrared image, system of infrared image capture and machine-readable medium Method to process an infrared image includes stages, at which an infrared image is processed, in order to provide a background part of an infrared image and a detail part of an infrared image; the background part and/or the detail part is scaled to ensure the level of the detail part relative to the level of the background part; the background part and the detail part are combined after scaling to provide the processed infrared image; and the processed infrared image is saved. |
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Method of compressing and reconstructing moving colour video images At the transmitting side, a three-dimensional array of video image transformation coefficients (TC) is calculated by performing a three-dimensional discrete cosine transform (DCT) operation. 2pk coefficients of a two-dimensional linear prediction of matrices of the three-dimensional array of video image TC are calculated and then transmitted to a digital communication channel. Based on quantised values of coefficients of the two-dimensional linear prediction, TC envelopes are formed, from which TC coordinates are determined in descending order of their absolute values. Values of frequency coefficients corresponding to the found coordinates are quantised and transmitted to a communication channel. Message reconstruction is performed in reverse order. Based on the coefficients of the two-dimensional linear prediction received from the communication channel, TC envelopes are formed, from which the accepted TC coordinates are assigned in the structure of their matrix. Video images are then reconstructed by performing inverse three-dimensional DCT over the reconstructed TC three-dimensional array. |
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Image coding apparatus and method and image decoding apparatus and method Image coding apparatus has a converter with increase in pixel depth in bits for converting the depth in bits of each pixel of the input image so as to output a converted input image and output information on conversion in bits indicating the number of bits for which depth changes as a result of the conversion, an image coder for encoding the converted input image so as to output image coding information and a multiplexer for multiplexing information on conversion in bits and image coding information. |
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Methods and device according to various aspects receive image data in low-dynamic range (LDR) format as input and generate enhanced image data, having a higher dynamic range than the input image data (i.e. high-dynamic range (HDR) image data) as output. In certain versions, the methods are applied to video data and are implemented in real time (i.e. processing video frames for expanding the dynamic range of video frames is carried out, at least on average, at the video signal frame frequency). |
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Invention relates to medical equipment, namely to devices for diagnostics of pathology of blood circulation in extremities. Complex contains thermal imaging camera, installed on support, personal computer, connected with thermal imaging camera and net energy supply unit and thermal screen with thermal regulator. Thermal screen is installed with possibility of patient placement between it and thermal imaging camera, temperature of thermal screen being different from environment temperature. |
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Method of determining brightness level in area of interest on digital medical x-ray picture Image is taken, its histogram is calculated, values of the histogram are converted to input arguments of a neural network and the output value of the neural network is calculated. The input arguments of the neural network used are normalised to the unit value of the histogram calculated with a given class interval. The brightness level is calculated as a linear function of the output value of the neural network. The neural network is trained using a learning set calculated on a given image base. The set of target values used is the brightness levels calculated for each image on the area of interest and scaled to the range of the neuron activation function of the output layer of the neural network. |
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Invention relates to forward and inverse decorrelation transformation of digital video images in video compression and decompression systems. The method is realised owing to possibility of decorrelating digital video images of arbitrary dimensions and not only dimensions equal to whole-number powers of two, which provides a device for decorrelating digital video images using integral orthogonal decorrelation matrices in video image compression systems. |
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Method and system to convert stereo content Initial chart of disparity/depth is calculated for a stereo image from 3D video; the depth chart is smoothened; parameters of depth perception are varied in compliance with estimation of eye fatigue; a new stereo image is generated in compliance with parameters of depth perception. The system of stereo content conversion for the purpose to reduce eye fatigue when viewing 3D video comprises a unit of depth chart calculation and smoothening, a unit of depth control, a unit of visualisation, at the same time the first outlet of the calculation unit and the depth chart smoothening is connected to the first inlet of the visualisation unit, the second outlet of the depth chart calculation and smoothening is connected to the inlet of depth control unit, the outlet of which is connected to the second inlet of the visualisation unit. |
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Method of distributing and transcoding video content Modified time-based inverse discrete cosine transform is used, where said transform is performed by one operation for multiplying matrices of all coefficients obtained through reverse scanning on all planes of the cube, by single common requantisation matrix, elements of which are formed from elements of dequantisation matrices for time-based inverse discrete cosine transform and MPEG quantisation. |
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Device and method to process images and device and method of images display Device comprises a module (101) for detection of a movement vector, which detects a vector of movement in each earlier specified area between frames of the introduced image signal, and a module (2) for identification of circuits, which emphasizes a high-frequency component of the introduced image and a signal of an interpolated image, formed by means of a module (100) for conversion of frame frequency (FRC-module), according to the value of movement of the introduced image signal detected by means of the module (101) for detection of a movement vector. This is compensated by a high-frequency component weakened by means of an image sensor effect of integration in time, to reduce visible blur of moving object images to increase sharpness of a displayed image. By setting an extent (a level) of the interpolated image signal circuits as a lower extent of the signal of the introduced image, the sharpness of the displayed message increases without isolation of the interpolated image signal image deterioration. |
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Device for compensating for video data Invention relates to systems in which a television signal is transmitted over one or more parallel channels where the bandwidth of each channel is less than the spectrum width of the television channel, and can be used in video data encoding devices working in real time. The device for compensating for video data consists of series-connected time decorrelation unit, two-dimensional wavelet transformation unit, a unit for quantising transformation coefficients and an entropy encoding unit. |
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Image processing apparatus, image recording apparatus and image processing method Image processing method comprises steps on which the image received from an image sensor, having a pixel region shielded from light and a pixel region which is not shielded from light, is broken into two or more frequency components; the noise value is calculated for the frequency component from the frequency component in the pixel region shielded from light; the noise component is suppressed for the frequency component in the pixel region which is not shielded from light in accordance with the calculated noise value; and the broken frequency component is synthesised so as to form the image that way. The invention also discloses devise which realise the said method. |
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Method of improving image post processing using deformable grids Method of speeding up post processing of an object in form of an image which is segmented using a grid comprises steps on which: the post processing task which must be performed over the object after segmentation using a grid (22) is identified; information required for the post processing task (24) is determined; the information is encoded on a grid (30); the object is segmented in a new image using the grid with the encoded information (36); and post processing task is performed by picking up encoded information from the grid (40). The information can be tied to the grid after its creation, for example after segmentation of the same object in a certain practising image. The post processing task can be performed automatically without interaction with the user after segmentation of the object in an extra image. |
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Method of adaptive smoothing to suppress screen-type pattern of images Method includes performance of the following operations: digital copy of initial printed document is produced in colour space of RGB, brightness difference is detected, and direction of maximum gradient is determined, current count of image is classified for its affiliation to area of brightness difference or uniform area without sharp changes of brightness, Gauss smoothening of current count is made, if it is classified as belonging to uniform area without sharp changes of brightness, current count is smoothened in anisotropic manner, if it is classified as belonging to the area of brightness difference. |
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First band pass (BP) is determined based on initial image data; a matrix of filter coefficients (FC) is calculated to obtain frequency characteristics corresponding to limitation of frequency band (FB) using the first BP; data of the first filtered image are generated by filtering data of the initial image using the matrix of first FC; an estimate value of the objective image quality of data of the first filtered image is obtained and the distribution coefficient (DC) is calculated, which is used to determine the optimum BP based on the estimate value of objective image quality; the optimum BP corresponding to the calculated DC is determined using a table in which the corresponding relationship between DC and optimum BP is defined; a matrix of optimum FC is calculated to obtain frequency characteristics corresponding to limitation of FB using the optimum BP; and data of the optimally filtered image is generated by filtering data of the initial image using the matrix of optimum FC. |
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Length of transition at jumps in brightness is reduced; filtration with adaptive smoothing filter is done; repeatedly length of transition is reduced at jumps in brightness; local contrast is increased at the edges of jumps in brightness; global contrast is increased. |
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Method of enhancing digital image quality Invention proposes to use an imaging model with separation of effects associated with reflecting power of the surface R and effects associated with scene illumination characteristics L, for which: quality of a recorded image is evaluated and if there is need to correct the image, noise is filtered off; a smaller copy of the image is formed; borders for subsequent contrast enhancement at the correction step are defined on the smaller copy; the luminance channel of the initial image is selected and filtered; the image is corrected in accordance with an empirical equation of the LR imaging model: |
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Method and device for creating images with high dynamic range from multiple exposures Sufficient light is obtained through several first exposures together with one second exposure in quick succession. The first exposures are combined to provide sufficient brightness and sharpness. The second exposure is meant for collecting colour information. The first exposures are combined with the first exposures to provide an improved image. |
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Controlling speed of scalable coded images Subsets are determined (step 29), each containing one or more coding units, where at least one image puts at least one coding unit into two or more subsets, the list of requirements (LOR) is established (step 30) containing at least one element associated with each subset. Significance values are use in order to select quality increments for generating an allowable code stream which satisfies the LOR for subsets (steps 34, 36). Quality increments can be selected so as to attain high quality for different subsets depending on size requirements in the LOR. For certain requirements, the code stream will exhibit an approximately constant quality of the reconstructed image. Quality increments can be selected so as to achieve small sizes of a compressed image for different subsets depending on quality requirements in the LOR. |
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Coding device, coding method, decoding device, decoding method and programs thereof Coding device has definition apparatus for determining image area data meant for processing in order to counter reconstruction implied by granular noise arising in image data coded based on said image data and apparatus for countering reconstruction, designed for processing in order to counter reconstruction for image area data, defined using definition apparatus when coding image data, where when the said image data are coded in data unit data modules, the said definition apparatus determines unit data which form the said image data as the said image area data, and apparatus for countering reconstruction forcibly sets the orthogonal transformation coefficient to zero, which becomes equal to zero when quantisation is carried out using the said unit data, among orthogonal transformation coefficients of unit data defined using the said definition apparatus. |
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Image processing device and method of controlling image processing device Invention relates to an image processing device for converting data of a moving image having a first frame frequency, into data of a moving image having a higher frame frequency. The technical result is achieved due to that, a low-pass filter (LPF) filters image input data frames (A[i]) so as generate low-frequency image data. A subtracting unit and an adder generate high-frequency image data. Another adder adds low-frequency image data coming from a delay circuit, with subsequent low-frequency image data. A divider divides the sum by two to generate low-frequency averaged image data. A switch successively outputs high- and low-frequency image data each time an image data frame is entered. |
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Method of simulating film granularity Invention relates to the technology of simulating granularity of a film in an image. A method is proposed for simulating a film granularity unit for adding to an image unit through a first establishment of at least one image parametre in accordance with at least one unit attribute. The film granularity unit is established in accordance with the image parametre. Deblocking filtration can also be applied to the film granularity unit. |
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Method and device for presenting image graininess using one or more parametres Invention relates to devices for simulating film grains. In order to determine film grain parametres, apparatus for determining film grain receives an input information stream and a filtered information stream from which film grain has been removed. The apparatus for determining film grain parametres gives out a message from these streams, which contains a model identifier for grain simulating, as well as at least one set from several parametres which include correlation parametres, intensity-independant parametres and intensity-dependant parametres used by the identified model. An encoder encodes film grain information for subsequent transmission. |
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Method of easy imitation of film granularity Invention relates to methods of imitating film granularity in an image. The said result is achieved due to that, film granularity in a video image is imitated by creating a block first i.e. a matrix of transformed coefficients for a set of cutoff frequencies fHL fVL, fHH and fVH, related to the desired granularity structure. Cutoff frequencies fHL fVL, fHH and fVH represent cutoff frequency, in two measurements, of a filter which sets characteristics of the desired film granularity structure. The block of transformed coefficients undergoes inverse transformation, obtaining a sample of film granularity with accuracy of up to a bit, and the said sample is scaled in order to mix with a video signal for imitating film granularity in that signal. |
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Invention relates to digital video information processing, and more specifically to methods of coding and decoding images, and is meant for designing systems for coding and decoding based on three-dimensional discrete cosine transformation of video data. To detect and eliminate time redundancy in each domain with size n×n×n pixels, discrete cosine transformation with respect to time is carried out. Presence of movement in each fragment with size n×n pixels is then determined from presence of non-zero spectrum factors except the first fragment of the domain. If there is movement in each fragment of the domain, in order to eliminate spatial redundancy, coefficients of discrete cosine transformation are calculated on two spatial coordinates x and y. The obtained coefficients are quantized and coded with elimination of statistical redundancy and then transmitted to a communication channel. During decoding, the entire process is carried out in reverse order. |
Another patent 2513615.