Abstract: Certain systems and methods are directed to acquiring, generating, manipulating and/or editing (for example, focusing or refocusing) refocusable video data/frames. The refocusable video frames may be light field video frames that may be focused and/or refocused after acquisition or recording of such video frames.

Abstract: An adaptive filter calculates a target pixel from an interlaced video signal. The video signal comprises a plurality of frames, each of which comprises an even and an odd field. The filter comprises a quantized motion calculator and a filter selector. The quantized motion calculator estimates an amount of motion about the target pixel. The filter selector selects a filter in accordance with the estimated amount of motion. The filter applies a first weighting factor to a plurality of current field pixels and a second weighting factor to a plurality of previous field pixels for creating the target pixel.

Abstract: A signal processing circuit includes an interpolation filter for outputting an interpolation value of signal levels at positions of ¼ phase and ¾ phase between two original pixels of the input digital image adjacent in the predetermine direction; a phase shift circuit for outputting signal value of each of the two original pixels by shifting the phases of the signals of the two original pixels in the predetermined direction to ¼ phase and ¾ phase, respectively, between the two original pixels; a edge detection circuit for detecting a edge portion of the image from a signal level change of a plurality of pixels including the two original pixels of the input digital image in the predetermined direction; and a first signal selection circuit for outputting the output of the phase shift circuit when the edge is detected, and outputting the output of the interpolation filter when no edge is detected, based on the result of detection by the edge detection circuit.

Abstract: Disclosed are a display apparatus and a control method thereof preventing boring and a trouble misunderstanding due to a mute screen supplied in changing an image signal, the display apparatus, including: a display unit which displays an image; an image processing unit which processes an input image signal to be displayed in the display unit, and displays a mute image in the display unit during a mute time when changing the input image signal; and a control unit which controls the image processing unit to gradually convert the total screen of the display unit displaying the input image signal to the mute image before displaying the mute image if a change signal for changing the input image signal is input.

Abstract: To provide a video signal processing device and a video signal processing method capable, for progressive signals that are input after undergoing various conversion processes, of maintaining the quality of the output progressive signals at a fixed level. A video signal processing device in accordance with an exemplary aspect of the present invention includes a detection unit that detects the conversion history of an input progressive signal, and a signal restoration unit that re-converts a progressive signal according to a detection result detected by the detection unit. The signal restoration unit includes a conversion unit that re-converts an input progressive signal, and a selector that selects and outputs a progressive signal re-converted by the conversion unit and an input progressive signal according to a detection result of the detection unit.

Abstract: A method and system for characterizing structures in an image are presented. The method and system generates a structure checksum value based on a plurality of pixels in the image. The structure checksum is used as an index of a look-up table containing structure characteristics corresponding to the structure checksum values.

Abstract: An imaging apparatus includes an imaging section which captures an object to obtain a first image signal of interlace scan type, a motion vector detection section which detects a motion vector by use of the first image signal, a vibration correction section which corrects, according to the motion vector detected by the motion vector detection section, vibration of an object image included in the first image signal, and a conversion section which converts, according to the motion vector detected by the motion vector detection section, the first image signal to a second image signal of progressive scan type.

Abstract: According to one embodiment, a video display device includes a detection part configured to input a video signal to detect a black screen region in an effective display region from each of a plurality of frame images, a setting part configured to set a region to be processed excluding a black screen region from each of the frame images based on the detected result, a frame interpolation processing part configured to generate an interpolated image of each of a plurality of frames using adjacent frame images to which a region to be processed is set, and a display monitor configured to display a video signal subjected to a frame interpolation process. The video display device only performs a frame interpolation process on a necessary screen region by performing frame interpolation using an image from which a black screen region is separated.

Abstract: A pull-down signal detection circuit includes an inter-field correlation determination unit configured to determine an inter-field correlation on the basis of a current field signal and a 1-field delay signal, and providing a determination result which indicates a “strong/middle/weak” level, an inter-frame correlation determination unit configured to determine an inter-frame correlation on the basis of the current field signal and a 2-field delay signal, and a pull-down signal determination unit configured to determine whether the input video signal is a pull-down signal or not, on the basis of the determination results of the inter-field correlation determination unit and the inter-frame correlation determination unit.

Abstract: Video filtering using a programmable graphics processor is described. The programmable graphics processor may be programmed to complete a plurality of video filtering operations in a single pass through a fragment-processing pipeline within the programmable graphics processor. Video filtering functions such as deinterlacing, chroma up-sampling, scaling, and deblocking may be performed by the fragment-processing pipeline. The fragment-processing pipeline may be programmed to perform motion adaptive deinterlacing, wherein a spatially variant filter determines, on a pixel basis, whether a “bob”, a “blend”, or a “weave” operation should be used to process an interlaced image.

Abstract: A method for video decoding in a video decoding/de-interlacing display apparatus that utilizes a storage device having four frame buffers is provided. The method includes following steps: (a) decoding video data of a next picture; (b) if the next picture is a B picture, buffering the decoded video data of the next picture into a frame buffer of the storage device not stored with a reference picture nor a present display picture nor a previous display picture; and (c) if step (b) is not applicable, buffering the decoded video data of the next picture into a frame buffer of the storage device stored with the previous display picture.

Abstract: A method for film mode detection is disclosed. The method generally includes the steps of (A) detecting if a plurality of fields in a video signal are in a 3:2 pull-down pattern to control a plurality of first flags based on a plurality of statistics gathered from the fields, (B) detecting if the fields contain moving interlaced text to control a second flag based on both (i) the statistics and (ii) a repeat-field flag of the first flags that indicates repeating consecutive same polarity fields and (C) deciding among a plurality of inverse telecine processes to de-interlace the fields based on all of (i) a 3:2 mode flag of the first flags, (ii) a 3:2 direction flag of the first flags and (iii) the second flag.

Abstract: A method for de-interlacing is disclosed. The method generally includes the steps of (A) determining a plurality of target mode values for a target pixel being synthesized to convert a current field into a current frame, wherein at least two of the target mode values are based on both (i) a plurality of original pixels and (ii) a plurality of synthesized pixels in a plurality of synthesized frames, (B) generating a plurality of candidate values for the target pixel using a plurality of interpolation techniques that includes a motion estimation interpolation utilizing a particular one of the synthesized frames and (C) selecting a particular one of the candidate values for the target pixel in response to the target mode values.

Abstract: A method for performing motion compensated video spatial up-conversion on video. The horizontal samples in successive fields are first interpolated using a spatial interpolation technique. This is followed by interpolating the corresponding vertical samples using a motion compensated deinterlacing technique. Such techniques can include an adaptively recursive motion compensated video spatial up-conversion or an adaptively recursive motion compensated video spatial up-conversion using a generalized sampling theorem. The present invention can be used to convert video captured on a mobile device, such as a mobile telephone, so that it can be subsequently and adequately displayed on a television.

Abstract: Embodiments of keyframe analysis and distribution from broadcast television are disclosed. For example, embodiments include methods and systems of sharing video frame data over a data network to provide features that may include improved program guides, parental or other monitoring of televisions or other video receivers, and sharing of user identified frames or scenes of video programs.

Abstract: A video conversion apparatus includes: a video format conversion unit configured to interpolate, in the case that video signals, which are made up of a luminance component and color difference components and of which the video format is the interlace format, have been supplied, the luminance component and color difference components of the video signals, thereby converting the video format of the video signals into the progressive format; and a color difference format conversion unit configured to interpolate the color difference components of the video signals obtained with the conversion by the video format conversion unit, thereby converting the color difference format of the video signals from a first color difference format to a second color difference format that includes more color difference components than the first color difference format.

Abstract: An apparatus takes in a plurality of still image frames, to generate an interpolated image frame. Next, moving addition of the still image frame and an interpolated image frame is performed in time-axis direction, to generate a superimposed image frame. At this time, high spatial frequency components in the superimposed image frame are suppressed strongly as alienation of motion between the still image frames becomes larger. Movie is reproduced by sandwiching these superimposed image frames between the still image frames. As a result of this, the movie reproduction with smooth motion is made possible even from a group of the still images photographed by an electronics still camera and the like.

Abstract: A digital camera first carries out R component and B component interpolation processing on image data. Then, magnification chromatic aberration correction processing is carried out on the image data that has undergone R component and B component interpolation processing. Then, G component interpolation processing is carried out on the image data that has undergone magnification chromatic aberration correction processing. In carrying out G component interpolation processing, a determination is made as to the G components of which pixels to use in the interpolation processing based on R components or B components of the image data that has undergone magnification chromatic aberration correction processing.

Abstract: An apparatus and method for enhancing the quality of reproduced images are provided. More specifically, provided are an apparatus and method for enhancing the quality of reproduced, progressive images, which are capable of obtaining more natural and smoother progressive images and preventing such problems as blurry colors and aliased images that could be brought about in the process of converting interlaced images into progressive images.

Abstract: An image processing system and method. The image processing system acquires a first set of scan lines in at first field of image data and a second set of scan lines in a second field of image data; the second set of scan lines are interlaced relative to the first set of scan lines and performs a line by line correlation therebetween to provide an error signal or value. The first and second fields are buffered and coupled to a line-to-line correlator. The error signal is used to adjust either the first or the second set of scan lines to correct for skew or blur in the second field of image data.

Abstract: A device for detecting a display mode of a video signal having first pixels corresponding to a first field, second pixels corresponding to a second field, and third pixels corresponding to a third field, includes a pixel converter, a measurement circuit, and a decision circuit. The pixel converter converts the second pixels to generate converted pixels. The measurement circuit generates measurement values related to differences between a converted pixel, a first pixel, and a third pixel. The decision circuit determines the display mode of the video signal according to the first, second, and third measurement values.

Abstract: An apparatus of low angle interpolation is disclosed, which includes a low angle calculation circuit, a direction decision circuit, a post-processing circuit, an interpolator and a line buffer. According to a counterclockwise operating matrix and a clockwise operating matrix whose shapes look like triangles, the invention calculates sum of absolute differences (SAD) for each specified angle to correctly detect edges, thereby minimizing jaggies and frequency alias.

Abstract: The display device including: a display panel; a backlight; a memory for converting frame rate of an input video signal and outputting a video signal; an interpolation frame generation unit for generating an interpolation frame based on the video signal output from the memory; a histogram generator for generating a histogram based on the input video signal; and a backlight brightness calculation unit for calculating a backlight control signal, the display device further comprising: wherein image data for display, which is obtained by an N-th frame of the input video signal, and image data of the interpolation frame generated based on the N-th frame and an (N+1)-th frame of the input video signal, is input to the display panel; and wherein the backlight control signal calculated based on the histogram generated based on the image data of the N-th frame is used for displaying the image data for display.

Abstract: A method and system for calculating an interlace artifact in image data are disclosed. A motion picture of the image data comprises a series of frames, captured at a predefined interval of time. During processing of the motion picture, the frames are divided into fields, each field comprising one or more pixels. A difference between the pixels of the fields is calculated. Thereafter, edges of the pixels are calculated in the fields. The method and system then identify the focused area in the fields. To calculate the interlace artifact in the motion picture, the displacement of the focused area is calculated by using motion vectors. The artifacts are calculated as a ratio of a number of pixels based on motion vector calculation.

Abstract: A camera includes an image capture unit which captures the image of a subject to obtain image data, a pixel interpolation unit which, on the basis of pixel data from multiple pixels arranged on a line in the image data obtained by the image capture unit, creates image data in an interpolation position on the line, and a storage unit which is stored with common coefficient data for pixel data from multiple pixels which are n-th pixels counted from the interpolation position in opposite directions on the line, the pixel interpolation unit performing interpolation operations on the pixel data from the n-th pixels using the coefficient data stored in the storage unit to thereby create the image data in the interpolation position.

Abstract: In accordance with some embodiments of the present invention, de-interlacing may be accomplished by using an edge gradient to select a best interpolation direction for several adjacent pixels between two lines of interlaced video. The interpolation of the intermediate line is performed using the best direction. Then the pixels in the line above and below are analyzed to determine whether the interpolated pixel value should actually be used in view of the possible presence of artifacts.

Abstract: According to one embodiment, a de-interlacing apparatus includes: a motion vector detecting section; a full-screen shift detecting section detecting a full-screen shift; a moving-or-still judging section performing a moving/still judgment for a video signal; a moving judgment correcting section correcting a moving/still judgment result to lean toward a moving judgment when full-screen shift is detected; a first interpolation signal generating section generating a first interpolation signal for interpolating a one-field delay signal based on the motion vector and the full-screen shift; a second interpolation signal generating section generating a second interpolation signal for interpolating the one-field delay signal from a current field signal or a two-field delay signal; and an interpolation signal mixing section mixing the first and second interpolation signals to generate a mixed interpolation signal.

Abstract: According to one embodiment, an embodiment of the invention is applicable to various input video signals, prevents image quality degradation in a signal conversion process, and maintains image quality. A front stage unit has a first video signal processing circuit, which reduces noise and performs IP conversion in response to a first image processing control signal from a first control circuit. A rear stage unit has a second video signal processing circuit, which executes frame rate conversion in response to a second image processing control signal from a second control circuit. An arithmetic circuit functions so that the contents of the first image processing control signal exerts an influence upon the second image processing control signal.

Abstract: An information signal processor that is well suitable for use in conversion of an SD signal into an HD signal. The pixel data set corresponding to an objective position in the HD signal is extracted selectively from the SD signal. Class CL to which pixel data set of the objective position belongs is then obtained using the pixel data set. A coefficient production circuit produces coefficient data sets Wi for each class based on coefficient seed data sets and values of picture quality adjusting parameters h and v. A tap selection circuit selectively extracts the data sets xi from the SD signal and then, a calculation circuit produces the pixel data sets of the objective position in the HD signal using the data sets xi and the coefficient data sets Wi. It is thus possible to save on the storage capacity of the memory.

Abstract: In an image conversion device, a unit calculates an estimate pixel value for comparing an upper line pixel value with a lower line pixel value using the upper line pixel value corresponding to a plurality of consecutive pixels to be interpolated in a line between adjacent upper and lower lines in a field image and calculates an estimate pixel value for comparing the lower line pixel value with the upper line pixel value using the lower line pixel value; a unit searches for a combination of an estimate pixel value to minimize the sum of an absolute value of a difference between the estimate pixel value for the upper line and an upper line pixel value and an absolute value of a difference between the estimate pixel value for the lower line and a lower line pixel value; and a unit interpolates a pixel value for the minimizing combination.

Abstract: A method for comparing pixels may comprise determining at least one polarity difference for at least one pair of neighboring pixels selected from a plurality of adjacent pixels, which are from different fields. A number of subsequent polarity changes may be calculated for the pair of neighboring pixels based on the determined polarity of difference. The adjacent pixels may be selected from a plurality of woven fields. A portion of the selected adjacent pixels may include pixels in neighboring fields. A portion of the selected adjacent pixels may include vertically adjacent pixels, horizontally adjacent pixels, and/or diagonally adjacent pixels. At least one pixel in the plurality of adjacent pixels includes a corresponding horizontally, vertically or diagonally located adjacent pixel in a different field.

Abstract: A SIMD processor architecture comprises a Linear Processor Array (LPA) (41) having a plurality of Processing Elements (PEs) (42). Each PE (42) operates on its pixel data based on a common instruction which is broadcast to all PEs (42) from a global control processor (44). To enhance the processor's capability in handling de-interlacing algorithms, there is provided a field access module (FAM) (47), an input line memory (48), and a shadow memory (49) within a working line memory (43). The input line memory (48) comprises a previous video field memory (481) for storing a first plurality of pixels from a previous video field, a current video field memory (482) for storing a plurality of pixels from a current video field and a next video field memory (483) for storing a plurality of pixels from a next video field. In a similar manner, the shadow memory (49) comprises a previous-copy video field memory (491), a current-copy video field memory (492), and a next-copy video field memory (493).

Abstract: A method for producing a color conversion table by which a color image signal to be handled in an image input system is converted to a N bit color image signal to be handled in an image output system, comprising the step of producing a color conversion table from which a N+? bit color output value, exceeding a color gamut of the color image signal to be handled in the image output system can be read out corresponding to a color input value of the color image signal to be handled in the input system.

Abstract: The present invention relates to a data conversion apparatus and a learning device in which an image can be converted into a higher-quality image. A class-tap generating circuit (2) and a predictive-tap generating circuit (3) generate, from an SD image, a predictive tap used for determining the HD pixel of a specified block of an HD image. A classification circuit (4) classifies the HD pixel of the specified block based on the class tap. A coefficient RAM (7) obtains a tap coefficient for the class of the HD pixel of the specified block from tap coefficients obtained by learning the relationship between supervisor data and learner data for each class of at least one class by giving a predetermined constraint condition to the supervisor data. A predictive-computation circuit (8) and a decoding circuit (9) determine the HD pixel of the specified block by using the tap coefficient and the predictive tap.

Abstract: A image display unit is allowed to reproduce display characteristics substantially equivalent to that obtained with use of a cinema projector, when performing a image display based on a film image signal or an equivalent. The image display unit including: an image insertion section inserting an interpolation frame image into an input video signal as the film image signal or the equivalent; and a display section performing image display based on a video signal where the interpolation frame image is inserted. The image insertion section generates an optimized image as the interpolation frame image in which the insertion time period and the signal level are optimized based on display characteristics to be achieved in a projected image projected with the cinema film by a cinema projector, thereby to insert the optimized image into the input video signal at a position corresponding to a gap between frames of the cinema film.

Abstract: The present invention relates to a display (10) comprising a vertical stack of at least two different color absorbing layers (14) of pixels (18). The display is characterized in that the pixel resolution of at least two of the layers is different. The present invention also relates to a display system (50) comprising such a display and a method for controlling such a display.

Abstract: A video processing apparatus and method are disclosed. The video processing apparatus includes a first de-interlacer to de-interlace standard definition (SD)-level interlaced video signal into an SD-level progressive video signal by using spatial-temporal interpolation and output the SD-level progressive video signal, a scaler to convert the SD-level progressive video signal into a high definition (HD)-level interlaced video signal and output the HD-level interlaced video signal, and a second de-interlacer to de-interlace the HD-level interlaced video signal into a HD-level progressive video signal by using spatial interpolation and output the HD-level progressive video signal. Accordingly, an artifact ca be prevented from appearing at a vertical edge of an image.

Abstract: A reproduction system reproduces interlaced video data in a deinterlaced form. The system selects a deinterlacing algorithm used to process the interlaced video data. The deinterlaced video data is sent to a display device. The reproduction system responds to a manual or automated input that selects a deinterlacing algorithm.

Abstract: An apparatus and method of motion-compensation adaptive deinterlacing. The method includes detecting whether an input image is a still image using information regarding the input image stored in a memory, estimating a motion of a pixel to be interpolated when the input image is not a still image, and interpolating the pixel to be interpolated using one of using pixel values of previous and next fields with respect to a reference field including the pixel to be interpolated when the input image is the still image, the estimated motion information when the input image is not the still image and has no vertical fast motion, and pixel values of the reference field when the input image has a vertical fast motion.

Abstract: A spatial-type de-interlacing process to be applied to a digital image for obtaining a spatial reconstruction. Furthermore, to the digital image there are also applied one or more temporal-type motion compensation de-interlacing processes for obtaining one or more temporal reconstructions, and the spatial reconstruction and the one or more temporal reconstructions are sent to a decision module. The decision module applies a cost function to the spatial reconstruction and the temporal reconstructions and chooses from among the spatial reconstruction and the temporal reconstructions the one that minimizes the cost function. Preferential application is to display systems, in particular displays of a cathode-ray type, liquid-crystal type, and plasma type which use a mechanism of progressive scan.

Abstract: An interpolation processing section determines a pixel value of an interpolation-target pixel by a diagonal interpolation process. An interpolation value limiting section compensates the pixel value determined by the interpolation processing section such that it becomes a value between pixel values of two adjacent pixels above and below the interpolation-target pixel. An intersection area detecting section judges whether or not the interpolation-target pixel is located in, when the horizontal axis represents a horizontal position and the vertical axis represents a pixel value, an area in proximity of a horizontal position where a curve line, representing pixel values of pixels on the scanning line above the interpolation-target pixel, and a curve line, representing pixel values of pixels on the scanning line below the interpolation-target pixel, intersects.

Abstract: Multiple Description Coding (MDC) has been shown to be an effective technique for robust transmission of video data over networks including wireless systems and the Internet. A method is provided where the video signal (20) is interlaced and split into multiple streams before being encoded and transmitted over separate transmission channels (308, 310). At a receiver (320) side, de-interlacing algorithms may be applied and the streams are regrouped to form the original video signal (20). The use of interlacing and deinterlacing techniques improve the robustness of video transmission without having to modify existing equipment.

Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) calculating a potential sample at a location interfaced with a first field of the picture by temporal filtering, (B) evaluating a protection condition in a current region around the location after inclusion of the potential sample and (C) calculating an interpolated sample at the location by vertical spatial filtering the first field in response to the protection condition indicating a significant increase in a vertical activity within the current region due to the potential sample.

Abstract: According to one embodiment, an image processing apparatus includes a resolution increasing module and a moving-image improving module. The resolution increasing module performs, on receipt of a first video signal with first resolution, super resolution conversion on the first video signal to obtain a second video signal with second resolution that is higher than the first resolution by estimating an original pixel value from the first video signal and increasing pixels. The resolution increasing module also performs first correction on the second video signal obtained by the super resolution conversion. The moving-image improving module configured to perform, on the second video signal subjected to the first correction, second correction except for a correction process included in the first correction.

Abstract: A system and method that detect edges that are near horizontal thin lines in interlaced video in a deinterlacer. The system may detect edges in a video image and determine whether the edges are diagonal or nearly horizontal edges. Based on the determination the system may select a filter appropriate for filtering the edge. The system may utilize a control signal that may be low or high, and may according disable or enable filtering nearly horizontal edges, respectively.

Abstract: A method and apparatus of de-interlacing are disclosed. A flicker bit is assigned to each line of a frame to indicate a flicker characteristic of each line. A de-interlaced line is then generated by duplicating a neighboring scan line in a current frame according to an active flicker bit of a previous frame.

Abstract: According to the invention, a pull-down signal detecting apparatus includes: an interfield motion detecting module configured to determine whether or not an interfield motion between a first field signal and a second field signal exists by comparing a first counted number with a first threshold; an interframe motion determining module configured to determine whether or not an interframe motion between the first field signal and a third field signal exists by comparing a second counted number with a second threshold; a determination module configured to determine whether or not the video signal is pull-down signal based on the determination result of the interfield motion determining module and the interframe motion determining module; and a threshold control module configured to vary the first threshold, when the determination result of the interframe motion determining module corresponds with a second pull-down pattern and when the determination result of the interfield motion determining module does not cor

Abstract: A method for film reconstruction includes identifying motion tear artifacts within a plurality of video fields of a stream of video fields. The motion tear artifacts identified by analyzing the video fields using fuzzy logic. The method also includes comparing the analysis of one video field to the analysis of an immediately preceding video field to determine whether there is a relatively high level of motion tear artifacts within the video field or a relatively low level of motion tear artifacts within the video field. The method further includes identifying a pattern of temporal periodicity for the comparisons. The method also includes determining the cadence of the stream of video fields based on the pattern of temporal periodicity.

Abstract: According to the present invention, in converting an interlaced signal in 4:2:0 format into an interlaced signal in 4:2:2 format, diagonal correlation is detected using a luminance signal and color-difference signals are also interpolated diagonally based on a result of the detection. As a result, the quality of the image represented by the color-difference signals can be improved and the signal can be converted into the 4:2:2 format with the block noise of the color-difference signals, which could be produced in an MPEG decoded image in the 4:2:0 format, reduced.

Abstract: An image-capturing device includes an image-capturing unit that includes an imaging lens and an image-sensing element converting an image of a subject formed by the imaging lens to an electrical signal and that outputs an image signal based on an interlaced scan, a conversion unit that converts the image signal based on the interlaced scan from the image-capturing unit to an image signal based on a progressive scan, and a distortion-reduction unit that reduces geometrical distortion of the image signal based on the progressive scan from the conversion unit caused by the imaging lens.