Abstract: The present disclosure relates to an image processing apparatus and an image processing method each capable of reducing image quality deterioration. A connection component constituted by points that are included in a point group representing a three-dimensional structure, located adjacent to each other, and projected in an identical direction is projected on a two-dimensional plane in a plurality of directions to generate patches in the respective directions. A frame image where the generated patches in the respective directions are arranged is coded. For example, the present disclosure is applicable to an information processing apparatus, an image processing apparatus, an electronic apparatus, an information processing method, a program, or the like.

Abstract: A computer-implemented method is provided. The computer-implemented method includes inputting a low-resolution image into a generator; and generating a high-resolution image using the generator based on the low-resolution image. Generating the high-resolution image includes processing the low-resolution image through a plurality of super-resolution generating units arranged in series in the generator. A respective output from a respective one of the plurality of super-resolution generating units has a respective increased image resolution as compared to a respective input to the respective one of the plurality of super-resolution generating units.

Abstract: An image processing apparatus includes a first filter unit and a first composition unit. The first filter unit generates a plurality of results of filter processing for brightness by individually applying each of a plurality of filters for brightness with different frequency bands to a first brightness component image indicating a distribution of brightness components in a first image. The plurality of filters for brightness are spatial filters based on a visual characteristic of a human related to contrast detection. The first composition unit generates brightness contrast influence information indicating a distribution of degrees of influence of brightness contrast in the first image by compositing together the plurality of results of filter processing for brightness.

Abstract: The present disclosure provides an image processing method applied to a displaying terminal. The method includes: receiving a to-be-processed layer image delivered by the displaying terminal; querying a high resolution layer image matched with the to-be-processed layer image in a preset database based on the to-be-processed layer image; and delivering the high resolution layer image to the displaying terminal, thereby the displaying terminal processes the to-be-processed layer image based on the high resolution layer image. The present disclosure further discloses an image processing device, system and computer readable storage medium. According to the disclosure, an image resolution is improved.

Abstract: The present disclosure provides an image processing method applied to a displaying terminal. The method includes: receiving a to-be-processed layer image delivered by the displaying terminal; querying a high resolution layer image matched with the to-be-processed layer image in a preset database based on the to-be-processed layer image; and delivering the high resolution layer image to the displaying terminal, thereby the displaying terminal processes the to-be-processed layer image based on the high resolution layer image. The present disclosure further discloses an image processing device, system and computer readable storage medium. According to the disclosure, an image resolution is improved.

Abstract: The module (700) comprises: —a low pass filter for low pass filtering luminance component of the image, —a first look up table (710) storing precomputed values of a first expansion function of only low pass filtered luminance values, —a second look up table (720) storing precomputed values of a second expansion function of only luminance values, —a processor (740, 760) configured to multiply an output of the second look up table corresponding to an input luminance value of a color to expand by an output of said first look up table corresponding to an input low pass filtered luminance value associated with said input luminance value.

Abstract: A passive cancellation network may include a transmit input having a configuration that passively receives a transmit signal from a transmitter that is to be wirelessly transmitted; a transmit output having a configuration that passively delivers the transmit signal after processing by the passive cancellation network; a receive input having a configuration that passively receives a receive signal that includes undesirable leakage from the transmit signal; a receive output having a configuration that passively delivers the receive signal after processing by the passive cancellation network; and a passive feed forward cancellation circuit that passively cancels at least a portion of the undesired leakage from the transmit signal in the receive signal in a feed forward manner.

Abstract: A rendering apparatus and method in a light field display may determine positions of eyes of a user, may determine a subpixel emitting a ray that enters the eyes, based on the positions of the eyes, among a plurality of subpixels forming a three-dimensional (3D) pixel, and may display a stereoscopic image on the light field display based on a pixel value of the determined subpixel.

Abstract: A method and system that remove an unwanted signal and its harmonics from an input signal in a computationally efficient manner are disclosed. Embodiments include processing the FFT matrix to selectively zero-out rows of the matrix before multiplying the matrix with the Inverse FFT (IFFT) matrix. The resulting product (which is a sparse matrix) is then used to generate coefficients for a linear Finite Impulse Response (FIR) filter to process the input. The filtered output signal has the unwanted signal and its harmonics removed with minimal effect on a desired signal. The method produces a stable, physically realizable filter, requiring fewer computations than current methods.

Abstract: When reproducing a binocular 3D video, noises with random parallax are reduced by appropriately controlling the intensity of noise reduction. A reproduction apparatus includes: a noise processing circuit for applying noise processing to a video signal of a video content based on a given control signal; and a control section for receiving an output format identification signal which identifies an output format of the video content, and generating the control signal in accordance with the output format identification signal, the control section generating a control signal which causes the noise processing performed in the noise processing circuit to vary depending on whether an output format of the video content is a two-dimensional video or a three-dimensional video.

Abstract: A video input section acquires a video signal formed of a plurality of frames. A frame separator separates the video signal acquired by the video input section on a frame basis and distributes the separated video signals. A plurality of parallel processors perform video processing in parallel on the separated video signals corresponding to the frames separated and distributed by the frame separator. A frame combiner combines the separated video signals on which the plurality of parallel processors have performed the video processing.

Abstract: In an interlaced image processing method for processing fields generated by interlacing and including a plurality of rows of scan signals, the method includes: performing horizontal line detection on a current field so as to determine which of the rows of the scan signals is a horizontal line; according to the horizontal line detection result of the current field and a horizontal line detection result of a previous field, adjusting position of the horizontal line in the current field so as to approach position of a corresponding horizontal line in the previous field; and according to the result of position adjustment, re-sampling the current field. An interlaced image processing apparatus for implementing the method is also disclosed.

Abstract: A signal processing apparatus and a control method thereof are provided. The signal processing apparatus includes: a comb filter which divides a luminance signal and a chrominance signal from an input video signal and outputs a luminance level of the luminance signal and a color level of the chrominance signal; an output unit which outputs one of the luminance level output by the comb filter and a blurred luminance level obtained by blurring the luminance level; and a controller which determines whether the luminance level output by the comb filter includes the color level, and controls the output unit to output the blurred luminance level if the color level is included in the luminance level, and output the luminance level if the color level is not included therein.

Abstract: A decoder and a method for separating luminance and chrominance information from a target pixel in a composite video signal are provided. The decoder comprises a delay module, a filter module, a weighting factor generator, and a separator. The delay module is configured to delay a plurality of horizontal lines of the composite video signal to output a plurality of pixels including the target pixel. The filter module is coupled to the delay module and configured to filter the composite video signal in a horizontal direction and a vertical direction to generate a plurality of frequency components. The weighting factor generator is configured to generate a first weighting factor of the target pixel according to the horizontal direction and a second weighting factor of the target pixel according to the vertical direction. The separator is configured to separate luminance information from the target pixel in accordance with the frequency components, the first weighting factor, and the second weighting factor.

Abstract: Film mode detection with bad edit detection used in de-interlacing video includes use of combing artifact detection in both 3-2 pull down detection and 2-2 pull down detection. Further, combing artifact detection uses only two field memories by accumulation of partial field statistics for comparisons.

Abstract: A system and method for improved comb filtering. Various aspects of the present invention may comprise method steps and system components that generate a signal indicative of the quality of a field-combed signal. A first signal indicative of inter-field and inter-line signal difference substantially inside the chroma frequency band may be generated. An indication of field comb quality may be determined based at least in-part on the first signal, and a corresponding signal may be generated. Various aspects of the present invention may comprise method steps and system components that generate a comb-filtered signal. A field comb signal and line comb signal may be generated. A comb-filtered signal may be generated based on the field comb signal, line comb signal, and the signal indicative of the field comb quality.

Abstract: A multi-directional comb filtering in a digital video decoder is provided. Some embodiments of the present invention provide for a method of filtering, using a multi-directional comb filter, pixel data from a sequence of fields of pixel data, wherein the fields of pixel data comprise a previous field, a current field and a next field, and wherein each of said fields includes a previous line, a current line, a next line.

Abstract: A multi-directional comb filtering in a digital video decoder is provided. Some embodiments of the present invention provide for a method of filtering, using a multi-directional comb filter, pixel data from a sequence of fields of pixel data, wherein the fields of pixel data comprise a previous field, a current field and a next field, and wherein each of said fields includes a previous line, a current line, a next line.

Abstract: A device for outputting a luminance signal is disclosed. The device includes a chrominance judgment unit, a field observation unit, and an output unit. The chrominance judgment unit and the field observation unit are used to determine whether a 3D luminance signal is affected. The output unit outputs a resultant luminance signal according to the determination results of the chrominance judgment unit and the field observation unit. According to the present invention, the resultant luminance signal can be accurately obtained by judging characteristics of the 3D luminance signal and a 3D chrominance signal even if a 3D comb filter is wrongly used in a motion condition.

Abstract: An apparatus and a method for filtering noise in an image signal are provided. The apparatus includes an analog-to-digital converter (ADC), a first filter, and a second filter. The ADC receives the image signal and converts the image signal into a digital signal. The first filter receives the digital signal and filters a first noise portion of the digital signal to generate a first signal. The second filter coupled to the first filter receives the first signal and filters a second noise portion of the first signal, wherein the first noise portion is a sampled-based impulse noise, and the second noise portion is a line-based impulse noise.

Abstract: A method of composite decoding in which the input signal is converted into the frequency domain, and the symmetry of frequency components with respect to the subcarrier frequency is compared. The comparison is varied in dependence upon the frequency being processed. In this way, the separation can be adapted to suit known characteristics of different portions on the input spectrum. This is particularly useful for processing NTSC signals. The allocation of a particular component to chrominance may be biased in dependence upon a measure of the luminance information of the composite signal at a corresponding spatial frequency.

Abstract: A system of edge direction detection for comb filter includes a buffer, first and second filters, first and second oblique detectors, and a comparator. The buffer receives and stores a composite signal. The first filter performs filtering operation on the composite signal to produce a first filter signal. The second filter performs filtering operation on the composite signal to produce a second filter signal. The first oblique detector detects an oblique in the first filter signal to produce a first oblique indication signal and a first oblique direction signal and output a first minimum oblique difference. The second oblique detector detects an oblique in the second filter signal to produce a second oblique indication signal and a second oblique direction signal and output a second minimum oblique difference. The comparator compares the first and second oblique indication signals and the first and second oblique direction signals to produce edge information.

Abstract: An image processing apparatus is provided, including: a first image processing unit which converts an input image signal into a brightness signal and a chromaticity signal; and a second image processing unit which adjusts a bandwidth used to filter the chromaticity signal to correspond to a noise level of the image signal, and filters the chromaticity signal with the adjusted bandwidth to extract a chrominance signal.

Abstract: An error reduction apparatus includes a combing absence detector to detect absence of combing from a luminance signal, a combing presence detector to detect presence of combing from a color-difference signal, a vertical low-pass filter to receive the color-difference signal, and a selector to select one of the color-difference signal and a color-difference signal to which the vertical low-pass filter is applied based on detection results of the combing absence detector and the combing presence detector, and if combing is absent in the luminance signal and combing is present in the color-difference signal, the error reduction apparatus applies the vertical low-pass filter to the color-difference signal and outputs the signal.

Abstract: A two-dimensional filter arithmetic device comprises a picture memory, a line memory, a vertical filtering unit which includes nine first filter modules installed in parallel, a buffer for timing adjustments, and a horizontal filtering unit which includes four second filter modules installed in parallel. From the line memory, the pixel values of nine full pels per line are inputted in parallel to the vertical filtering unit, nine vertically-filtered values of half pels are generated and inputted to the horizontal filtering unit; thereby, four two-dimensionally-filtered values of half pels are generated.

Abstract: Aspects of the present invention relate to creation, modification and implementation of dither pattern structures applied to an image to diminish contouring artifacts. Some aspects relate to dither pattern structures with pixel values in a first color channel pattern that are spatially dispersed from pixel values in a corresponding pattern in a second color channel. Some aspects relate to application. Some aspects relate to systems and apparatus for creation and application of these dither pattern structures comprising pixel values dispersed across color channels.

Abstract: Aspects of a method and system for a generalized multi-dimensional filter device are provided. A corresponding luma component and a corresponding chroma component of a sample of a composite video baseband signal for each of a plurality of filtering modes may be determined. A similarity level of the sample corresponding to each of the plurality of filtering modes may be determined. A corresponding coefficient for each of the plurality of filtering modes may be generated based on the determined similarity levels. A luma component and a chroma component of the sample of the composite video baseband signal may be generated based on the generated corresponding coefficients and the determined corresponding luma components and the determined corresponding chroma components for each of the plurality of filtering modes.

Abstract: A system, apparatus and method are disclosed for separating a current frame of a composite video signal into a luminance signal and a chroma signal. A relative chroma correlation value is generated using a plurality of lines of the current frame. A weighted sum of inter-line pixel differences of the current frame is generated using the relative chroma correlation value. A frame difference signal is generated by subtracting a previous frame of the composite video signal from the current frame. A detected motion signal is generated that corresponds to motion detected in the current frame. The weighted sum of inter-line pixel differences, the frame difference signal, and the detected motion signal are combined to generate the chroma signal. The chroma signal is subtracted from the current frame to generate the luminance signal.

Abstract: A signal separator for separating luminance and color signals from a composite video signal includes: a first line delay element for delaying the composite video signal by one line period; a second line delay element for delaying the composite video signal by two line periods; an adder element for adding the first and second delay signals; a subtraction element for subtracting the second delay signal from the first delay signal; a control signal generator for passing a part of the addition signal within a predetermined frequency band therethrough; and a gain control element for reducing a level of the subtraction signal based on the control signal.

Abstract: A signal separator for separating luminance and color signals from a composite video signal includes: a first band pass element for passing a part of the composite video signal within a color signal band and within a predetermined frequency band; a second band pass element for passing a part of the first filtered signal within the color signal band and without the predetermined frequency band; and a first subtraction element for subtracting the first filtered signal from the composite video signal, wherein the predetermined frequency band is a frequency range in which the separation of the composite video signal into the color and the luminance signals is difficult.

Abstract: To provide a three-dimensional Y/C separating circuit that has a high responsibility to a motion in a video signal and can reduce a memory capacity, a three-dimensional Y/C separating circuit has a 2-frame memory 14 that delays a color signal by an inversion period thereof to produce a delayed composite video signal, a luminance motion detecting part that produces a first frame correlation signal by a subtraction processing between the delayed composite video signal and a composite video signal, an adding circuit 23 that produces a mixed video signal by an addition processing between the delayed composite video signal and the composite video signal, a frame memory 24 that delays the mixed video signal by one frame period, a subtracting circuit 25 that produces a second frame correlation signal by a subtraction processing between the mixed video signal and the mixed video signal delayed by one frame period, a determining circuit 26 that determines a motion from the first and second frame correlation signals an

Abstract: An embodiment has a C separating circuit which separates a carriage color signal and which outputs a reference, a lead, and a delayed composite video signals, a filter that extracts a high-frequency carriage color component with a significant variation in hue from the carriage color signal, a first calculation circuit which outputs a first luminance signal, a second calculation circuit which subtracts the carriage color signal from each of the reference, the preceding lead, and the delayed composite video signals and which derives a second luminance signal having an intermediate value, and a selection circuit which outputs the second luminance signal when the high-frequency carriage color component has a value larger than the reference value and which derives the first luminance signal when the high-frequency carriage color component has a value smaller than the reference value.

Abstract: A method for separating luminance and chrominance of a composite TV analog signal includes the steps of: measuring first differences between horizontal neighbor pixels, second differences between vertical neighbor pixels and third differences between temporal neighbor pixels encoded in the composite TV analog signal; comparing the first, second and third differences with one another to obtain a minimum difference used as a factor of a weighting function; and filtering the composite TV analog signal simultaneously by a two-dimensional (2D) comb filter and a three-dimensional (3D) comb filter according to the weighting function on the basis of the minimum difference to obtain a luminance signal and a chrominance signal, in which magnitudes of a part of the composite TV analog signal filtered by the 2D comb filter and magnitudes of the other part of the composite TV analog signal filtered by the 3D comb filter are determined by the weighting function.

Abstract: An image processing apparatus includes: a cross-color detecting module for detecting whether at least one pixel carried by a composite signal has cross-color effect; and an image processing module, coupled to the cross-color detecting module, for performing a first predetermined operation or a second predetermined operation on the composite signal to generate a corresponding chrominance signal; wherein when the pixel has cross-color effect, the image processing module outputs a chrominance value of the pixel from the chrominance signal processed through the first predetermined operation, and when the pixel does not have cross-color effect, the image processing module outputs the chrominance value from the chrominance signal processed through the second predetermined operation.

Abstract: An image processing method and an image processing apparatus are provided. After receiving an image signal, the image and apparatus according to the invention first judge whether a target block in the image signal includes a non-chroma line. If the judging result is YES, a first edge detection procedure will be performed on the non-chroma line. If the judging result is NO, a second edge detection procedure will be performed on the target block.

Abstract: A comb filter system that utilizes host memory is disclosed. The comb filter system that utilizes host memory may include a comb filter. The comb filter system that utilizes host memory may include an allocated host memory. The comb filter system that utilizes host memory may include an interface in signal communication with the comb filter and allocated host memory.

Abstract: The present invention discloses a super-resolution method for image display. The method comprises: receiving a low resolution image; dividing the low resolution image into a plurality of regions; finding high resolution patches in a pre-trained database; pasting the high resolution patches back to the plurality of regions by puzzle-form process or oblique-form process and computing the compatibility utilizing a two-dimensional hidden Markov model process; and generating a super-resolution image.

Abstract: A digital video processing apparatus and a control method thereof are provided, and include a signal receiving part for receiving a digital video signal, a decoder for separating a luminance signal from the digital video signal, and a filtering part for filtering the luminance signal separated in the decoder to substantially remove an interference signal contained in the luminance signal. Thus, the digital video processing apparatus can filter out interference signals contained in a luminance signal of a digital video signal.

Abstract: A method for processing video information may include calculating a polarity change count (PCC) for a plurality of pixel pairs selected from a plurality of pixels from different fields utilizing a plurality of difference polarity values associated with the plurality of pixel pairs. At least a portion of the plurality of pixels from different fields may be deinterlaced based on at least the calculated PCC. The plurality of difference polarity values may be calculated for the plurality of pixel pairs selected from the plurality of pixels from different fields. At least one difference in amplitude of at least one of the selected pixel pairs may be calculated for the calculating the plurality of difference polarity values. The plurality of pixels from different fields may comprise a plurality of adjacent pixels from a plurality of woven fields.

Abstract: Aspects of a method and system for a generalized multi-dimensional filter device are provided. A corresponding luma component and a corresponding chroma component of a sample of a composite video baseband signal for each of a plurality of filtering modes may be determined. A similarity level of the sample corresponding to each of the plurality of filtering modes may be determined. A corresponding coefficient for each of the plurality of filtering modes may be generated based on the determined similarity levels. A luma component and a chroma component of the sample of the composite video baseband signal may be generated based on the generated corresponding coefficients and the determined corresponding luma components and the determined corresponding chroma components for each of the plurality of filtering modes.

Abstract: A method of composite decoding in which the input signal is converted into the frequency domain, and the symmetry of frequency components with respect to the subcarrier frequency is compared. The comparison is varied in dependence upon the frequency being processed. In this way, the separation can be adapted to suit known characteristics of different portions on the input spectrum. This is particularly useful for processing NTSC signals. The allocation of a particular component to chrominance may be biased in dependence upon a measure of the luminance information of the composite signal at a corresponding spatial frequency.

Abstract: An image processing apparatus is provided, including: a first image processing unit which converts an input image signal into a brightness signal and a chromaticity signal; and a second image processing unit which adjusts a bandwidth used to filter the chromaticity signal to correspond to a noise level of the image signal, and filters the chromaticity signal with the adjusted bandwidth to extract a chrominance signal.

Abstract: An adaptive digital video signal processing apparatus and method for Y/C separation. In the video signal processing apparatus, an adaptive 2D BPF carries out Y/C separation through comb filtering and bandpass filtering selected according to local characteristics of an image (e.g., based on the direction in which an edge in the image extends in vertical and horizontal directions. The adaptive 2D BPF performs 2D bandpass filtering in general case. The 2D BPF adaptively executes a series of selections of the various filtering operations in a continuous manner.

Abstract: A system, apparatus and method are disclosed for separating a current frame of a composite video signal into a luminance signal and a chroma signal. A relative chroma correlation value is generated using a plurality of lines of the current frame. A weighted sum of inter-line pixel differences of the current frame is generated using the relative chroma correlation value. A frame difference signal is generated by subtracting a previous frame of the composite video signal from the current frame. A detected motion signal is generated that corresponds to motion detected in the current frame. The weighted sum of inter-line pixel differences, the frame difference signal, and the detected motion signal are combined to generate the chroma signal. The chroma signal is subtracted from the current frame to generate the luminance signal.

Abstract: I describe and claim a temporal comb filtering system and method. The temporal comb filter system includes a comb filter to temporally process separated luminance and chrominance components from an image field responsive to image data from at least one other image field and a panel to display the processed components. The comb filter includes a cross-chroma detector to detect luminance information within chrominance data from a first image field responsive to chrominance data from at least one other image field and a cross-luma detector to detect chrominance information within the luminance data from the first image field responsive to the luminance data from at least one other image field.

Abstract: The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-frequency composite signal and a high-frequency composite signal. The low-frequency composite signal is a low-frequency luma signal. A 2D comb filter is utilized to separate the high-frequency composite signal into a high-frequency luma signal and the chroma signal. The luma signal is equal to the low-frequency luma signal plus the high-frequency luma signal. Therefore, the 2D YC separation device of the present invention can perfectly separate the composite signal so as to obtain a better luma signal and chroma signal. The YC separation system of the present invention further comprises a 3D YC separation device and a motion detection device, so as to obtain a precise luma signal and chroma signal.

Abstract: Separation of luma and chroma in a video. In an embodiment, values on a current line of the sampled video signal, at ¼-period intervals, are compared with values on a previous line of the sampled video signal, at ¼-period intervals. Values on the current line of the sampled video signal are compared to values on a subsequent line of the sampled video signal. This gives information about the vertical frequency content. Values on the current line are compared with values having the same chroma phase on the same line to provide information about horizontal frequency content. The data of vertical and horizontal frequency logic are used by the decision logic to determine the appropriateness of combing based on these comparisons. If combing is not appropriate, the signal is bandpass filtered instead of combed. The low-pass and combing filters are applied to the original signal, not an interpolated or resampled signal.

Abstract: A digital video signal processing apparatus and method for adaptive spatio-temporal Y/C separation in multiple directions. In the digital video signal processing apparatus, an adaptive three-dimensional band pass filter (3D BPF) performs Y/C separation using local comb filtering/1D band pass filtering when the edge direction is fixed vertically/horizontally according to spatio-temporal local characteristics of an image using spatio-temporal filters. When the edge direction is not fixed horizontally/vertically, the 3D BPF performs 2D band pass filtering in all directions. Thus, the 3D BPF continuously carries out comb filtering, 1D band pass filtering and 2D band pass filtering according to the spatio-temporal local characteristics of the image.

Abstract: A digital video signal processing apparatus and method for field-based adaptive Y/C separation includes an adaptive 3D BPF performing Y/C separation according to local comb filtering/1D band pass filtering when the edge direction is fixed vertically/horizontally in response to spatio-temporal local characteristics of an image using spatio-temporal filters. When the edge direction is not fixed horizontally or vertically, the 3D BPF performs 2D/3D band pass filtering in all directions. The 3D BPF adaptively and continuously carries out comb filtering, 1D band pass filtering and 2D/3D band pass filtering in response to the spatio-temporal local characteristics of the image.

Abstract: A narrower bandwidth 3D comb filter is used to render a still motion portion of a video frame if motion in a moving portion of the frame exceeds a threshold, and otherwise a wider bandwidth 3D comb filter is used to render the still motion portion.