Abstract: An event-based sensor includes a photoarray and a processing circuit. The photoarray includes an array of cells. Each cell includes a photosensor generating a sensor signal dependent on an intensity of light casted on the cell, and an intensity monitoring circuit outputting an ON signal when the light intensity is increasing and an OFF signal when the light intensity is decreasing. The processing circuit is configured to generate an event in response to the ON and OFF signals, filter out the events caused by flickering light, and pass the events caused by motion.

Abstract: Disclosed approaches for converting between block coded format and raster format include buffers for first type component blocks and second type component blocks of a frame. The buffers are sized less than the width of the frame. A demultiplexer circuit is configured to input the first type component blocks and the second type component blocks in coded block order, and enable storage of the first type component blocks in the first buffer and of the second type component blocks in the second buffer in the coded block order. A multiplexer circuit is configured to flush data from the first buffer in raster scan order in response to a completed set of the first type component blocks in the first buffer, and flush data from the second buffer in raster scan order in response to a completed set of the second type component blocks in the second buffer.

Abstract: A system accesses an image with each pixel of the image having luminance values each representative of a color component of the pixel. The system generates a first histogram for aggregate luminance values of the image, and accesses a target histogram for the image representative of a desired global image contrast. The system computes a transfer function based on the first histogram and the target histogram such that when the transfer function is applied, a histogram of the modified aggregate luminance values is within a threshold similarity of the target histogram. The system modifies the image by applying the transfer function to the luminance values of the image to produce a tone mapped image, and outputs the modified image.

Abstract: Disclosed is a signal processing device and an image display apparatus including the same. The signal processing device includes: a quality calculator configured to compare a previous frame image and at least a region of a current frame image, and calculate image type information based on a comparison result; an image quality setting unit configured to set an image quality based on the image type information; and an image quality processing unit configured to perform image quality processing according to the set image quality. Accordingly, it is possible to improve accuracy of image analysis and perform image quality processing according thereto.

Abstract: An apparatus includes a plurality of pixels, a plurality of circuits arranged correspondingly to the plurality of pixels, and an output line connected to the plurality of circuits. Each of the circuits generates a signal by converting an analog signal at a first conversion rate and a signal by converting, at a second conversion rate, the analog signal used for generating the signal converted at the first conversion rate. The circuit has a signal obtaining unit configured to obtain a difference signal corresponding to a difference between a signal converted at the first conversion rate and a signal converted at the second conversion rate.

Abstract: A frame rate is synchronized to a detected cadence in order to generate an output image sequence that is substantially stabilized. In an in-camera process, a camera receives motion data of the camera while the camera captures the sequence of image frames. A dominant frequency of motion is determined and the capture frame rate is dynamically adjusted to match the frequency of detected motion so that each image frame is captured when the camera is at approximately the same position along the axis of motion. Alternatively, in a post-processing process, frames of a captured image sequence are selectively sampled at a sampling rate corresponding to the dominant frequency of motion so that each sampled frame corresponds to an image capture that occurred when the camera is at approximately the same position along the axis of motion.

Abstract: Systems, methods, and non-transitory computer-readable media can request a lower quality version of an image. The image can correspond to a progressive image. A first quantity of progressive image scans included in the progressive image can be acquired. The first quantity of progressive image scans can represent the lower quality version of the image. A command to access a higher quality version of the image can be acquired. A data range associated with a second quantity of progressive image scans included in the progressive image can be identified. The second quantity of progressive image scans can be combinable with the first quantity of progressive image scans to represent the higher quality version of the image. The second quantity of progressive image scans can be acquired based on the data range. The higher quality version of the image can be generated based on combining the first quantity and the second quantity.

Abstract: One or more components of a video display device such as a television set can be powered down in response to a determination that a video input source has been paused. The video signal provided by the video input source can be analyzed to determine whether the video source is paused. When the video input source is no longer paused, the powered down components can be restored to fill power operation.

Abstract: Methods are described for displaying video including variable frame rates. A method for displaying images includes receiving digital video data including video image data in a display system capable of displaying images at multiple frame rates; storing the digital video data in at least one frame buffer coupled to the display system; receiving in the digital video data ancillary data comprising at least configuration parameters indicating a current frame rate and a future frame rate; storing the parameters representative of a current frame rate in a first timing control buffer coupled to the display system; storing the parameters representative of a future frame rate in a second timing control buffer; displaying images from data in the frame buffer at the current frame rate; and upon detection of a swap condition, instantly displaying images from data in the frame buffer at the future frame rate. Additional methods and apparatus are described.

Abstract: Methods and apparatus are provided for implicit adaptive motion vector predictor selection for video encoding and decoding. The method encodes an image block using implicit adaptive motion vector predictor selection. The motion vector for encoding the block is predicted by defining a set of motion vector predictor candidates for the block based on a plurality of spatio-temporal neighboring motion vectors; and then selecting from the set a particular motion vector predictor candidate as the motion vector for encoding the bloc. The selection is made responsive to respective values for a fidelity of the spatio-temporal neighboring motion vectors.

Abstract: A flicker detecting method for an image capturing device includes acquiring a first image, wherein pixel values of each row in the first image are acquired during a first period; acquiring a second image, wherein pixel values of each row in the second image are acquired during a second period; generating a third image according to the first image and the second image; and detecting flickers according to the third image; wherein the first period is different from the second period.

Abstract: An anti-flicker filter is described, including determining a video sequence based on designated portion of a video, selecting a plurality of video elements from the video sequence, calculating an individualized filter for each video element of the plurality of video elements based on motion in each video element, and applying the individualized filter to each video element of the plurality of video elements.

Abstract: A display control device includes a determining portion determining a frame rate in displaying a frame image on a display portion as a determined frame rate; and a converter converting a present frame rate into the determined frame rate when the determined frame rate is different from the present frame rate. The determining portion determines, based on information about an OSD image, whether the determined frame rate is set to a frame rate identical to or higher than the present frame rate, and when determining that the determined frame rate is set to the frame rate higher than the present frame rate, determines the frame rate as the determined frame rate to display the frame image at the determined frame rate starting from a frame image which is K frames after a currently displayed frame image, where K is an integer not less than 1 and not more than 10.

Abstract: A method for creating a distance dependent display that comprises providing an image separating mask having a plurality precision slits arranged in a pattern, generating an interlaced image from a plurality of images according to the pattern, and combining the interlaced image and the image separating mask to allow an observer to view substantially separately each the image from a respective of a plurality of different distances from the image separating mask.

Abstract: An image processing method for processing an input image is provided. The image processing method includes: performing a plurality of first imaging processing operations on the input image to generate a first image; and performing a plurality of second imaging processing operations on the first image. Each of the first imaging processing operations is along a first direction, and the plurality of first imaging processing operations include a first scaling operation for increasing resolution. Each of the second imaging processing operations is along a second direction different from the first direction, and the plurality of second imaging processing operations include a second scaling operation for increasing resolution.

Abstract: An image processing method executed in an image processing device, the image processing method including a to-be-updated pixel selection unit deciding, in response to a cyclic period serving as a frame period of a bright and dark stripe pattern of image frames configuring a moving image content, a group division form of constituent pixels of the image frames, dividing the constituent pixels of the image frames into a plurality of groups in accordance with the decided group division form, and generating, from each of the image frames, to-be-updated pixel information setting pixels of a specific group as to-be-updated pixels, and an output control signal generation unit selectively outputting, in accordance with the to-be-updated pixel information, to-be-updated pixels belonging to a specific group from each of the image frames, and generating an output control signal for causing pixels of a display image to be updated in units of groups.

Abstract: A display apparatus that displays an image by causing a light emitting device to emit light includes a detection unit configured to detect flicker information that indicates a likelihood of occurrence of a flicker based on input image information, and a control unit configured to control both a light emission luminance and a duty ratio of a light emission time of the light emitting device according to the flicker information detected by the detection unit.

Abstract: This invention enables, for example, reduction of motion blur in a hold-type display device and reduce flicker in an impulse-type display device by a simple process. For this purpose, an LPF filters a frame of input image data (A[i]) to generate low-frequency image data (L). A subtractor and an adder generate high-frequency image data (SH). Another adder adds the low-frequency image data (L) from a delay circuit to subsequent low-frequency image data. A divider halves the sum to generate low-frequency averaged image data (SL). A switch alternately outputs the high-frequency image data (SH) and the low-frequency image data (SL) every time a frame of image data is input. As a result, the apparatus of this invention can generate output image data having a frame rate twice that of the input image data.

Abstract: Disclosed herein is an image processing apparatus including an interlace/progressive conversion section configured to carry out interpolation processing on image data of the current field by making use of the image data of the current field and image data of a field leading ahead of the current field by one field period in order to obtain image data of a progressive system with no delay time.

Abstract: A first quantization unit quantizes data of each pixel constituting a first frame data by a first logical formula to generate a second frame data with a predetermined number of lower bits deleted. A delay memory temporarily holds the second frame data and outputs third frame data. Interpolation unit generates interpolated frame data located between adjacent frames in the second frame data by using the second frame data and the third frame data. A second quantization unit quantizes data of each pixel constituting the first frame data by a second logical formula different from the first logical formula to generate a fourth frame data with a predetermined number of lower bits deleted. A frame memory temporarily holds the fourth frame data and the interpolated frame data, and outputs the fourth frame data and the interpolated frame data alternately at a second frame rate higher than the first frame rate.

Abstract: In order to distribute low-frequency component image data L in image data for one frame to first and second sub-frames respectively as L1 and L2, a distribution of L2 in the low-frequency component image data L is decided. This decision is made based on a non-linear curve, so that when the low-frequency component image data L falls within a low-level region, a distribution rate of L2 is decreased, and when the low-frequency component image data L falls within a high-level region, the distribution rate of L2 is increased within a range that does not exceed 0.5. In this way, a negative-side clipping phenomenon of high-frequency components is suppressed in the low-level region, and flickers are suppressed in the high-level region.

Abstract: In an apparatus and a method for executing generation and reproduction processing of picture data suitable for picture display devices having differing processable frame rates, low frame rate picture data is generated on the basis of a plurality of temporally continuous pictures having a high frame rate to provide picture data having a plurality of layers. Decimated data may be set as the high frame rate layer data. In this manner, the quantity of data to be transmitted or stored is reduced.

Abstract: Method and apparatus for converting a first video signal into a second video signal, including a succession of frames wherein each includes a plurality of points having a luminance. The points of the second video signal can be displayed on corresponding pixels of a display device. The method includes calculating the luminance of a point of a current frame of the second video signal by a weighted sum of a luminance of a corresponding point of a current frame of the first video signal and of a luminance of a corresponding point of a previously stored frame, and storing the luminance of the corresponding point of the current frame of the first video signal. The calculation is repeated for all the points of the current frame of the second video signal, and the storage is repeated for all the points of the current frame of the first video signal.

Abstract: A picture signal processing unit having a first and a second double rate conversion section, a storage section, and a quadruple rate conversion section is provided. The first double rate conversion section inserts a first interpolation frame between a couple of successive original frames to output the original frames and the first interpolation frames. The second double rate conversion section generates a second and a third interpolation frames and allocates the second and the third interpolation frames between the couple of successive original frames to output the second and the third interpolation frames. The storage section stores the original frame and the first to the third interpolation frames. The quadruple rate conversion section sequentially reads out the original frame and the first to the third interpolation frames from the storage section in a quadruple rate to output the original frame and the first to the third interpolation frames.

Abstract: A method of noise filtering of a digital video sequence to reduce ghosting artifacts, the method including computing motion values for pixels in a frame of the digital video sequence based on a reference frame, computing blending factors for the pixels based on the motion values, generating filtered output pixel values by applying the blending factors to corresponding pixel values in the reference frame and the frame, wherein selected filtered output pixel values are converged toward corresponding pixel values in the frame to reduce ghosting artifacts, and outputting the filtered frame.

Abstract: An image de-interlacing method comprises: (a) defining a first threshold value and a second threshold value, wherein the second threshold value is larger than the first threshold value; (b) generating a parameter according to motion level of a interlaced image; and (c) utilizing a first interpolation method and a second interpolation method to jointly process the interlaced image if the parameter is in a range between the first threshold value and the second threshold value.

Abstract: A method and apparatus of dejuddering image data includes receiving a video data signal that includes a plurality of successive source frames. A first source frame of the plurality of successive source frames is displayed a predetermined number of times. A first black frame is displayed, and successive source frames are displayed.

Abstract: The invention discloses a method and device for image filtering in the field of communication technologies, the method including: acquiring image data of a pixel dot of a current row to be filtered and a corresponding pixel dot of at least one adjacent row; obtaining contrast information containing a transparency value, of the pixel dot of the current row and the pixel dot of the adjacent row respectively by resolving the image data of the pixel dot of the current row and the pixel dot of the adjacent row; generating a filter coefficient according to the transparency value of the pixel dot of the current row and the transparency value of the corresponding pixel dot of the adjacent row; and performing filtering on the pixel dot of the current row with the filter coefficient.

Abstract: A method for setting a frame rate conversion (FRC) and a display apparatus using the same are provided. According to a method for setting FRC, an FRC level is received from a user; and a motion estimation and motion compensation level when performing FRC is set according to the input FRC level. Therefore, a user may set the FRC level according to the user's preference.

Abstract: In an apparatus and a method for executing generation and reproduction processing of picture data suitable for picture display devices having differing processable frame rates, low frame rate picture data is generated on the basis of a plurality of temporally continuous pictures having a high frame rate to provide picture data having a plurality of layers. Decimated data may be set as the high frame rate layer data. In this manner, the quantity of data to be transmitted or stored is reduced.

Abstract: An image processing circuit includes a de-interlace circuit, a motion interpolation circuit and a frame processing circuit. The image processing circuit receives a first field and a second field respectively from two successive film frames. A plurality of block motion vectors are calculated according to the first field and the second field. A plurality of interpolated frames are calculated according to the first field, the second field and the plurality of motion vectors.

Abstract: This invention enables, for example, reduction of motion blur in a hold-type display device and reduce flicker in an impulse-type display device by a simple process. For this purpose, an LPF filters a frame of input image data (A[i]) to generate low-frequency image data (L). A subtractor and an adder generate high-frequency image data (SH). Another adder adds the low-frequency image data (L) from a delay circuit to subsequent low-frequency image data. A divider halves the sum to generate low-frequency averaged image data (SL). A switch alternately outputs the high-frequency image data (SH) and the low-frequency image data (SL) every time a frame of image data is input. As a result, the apparatus of this invention can generate output image data having a frame rate twice that of the input image data.

Abstract: A signal processing device and method, a program, and a recording medium configured so as to be able to detect 2-3 pulldown sequences, from various types of input, in a precise manner. A state estimation unit determines whether or not still positions between 10 fields to be handled fit the still positions of a 2-3 pulldown pattern configured of 12 fields including one sequence, using a difference evaluation value, a threshold value, and feature quantity, calculated by an evaluation value feature quantity calculating unit from the field of an 60I signal from an input terminal, and a field positioned temporally two fields earlier in the field memory, determination is made regarding whether or not a pattern regarding which determination has been made to fit has repeated transition in a transition order which the 2-3 pulldown pattern has for a predetermined number of times or more, and processing of an inverse 2-3 pd conversion unit is controlled according to the results of determination.

Abstract: An integrated circuit comprises deflicker unit is described for adaptively applying deflicker filtering to image data to be displayed using an interlaced scan line technique. The deflicker unit comprises analysis unit arranged to receive the image data and identify at least one region of an image to which deflicker filtering is to be applied, and filter arranged to apply deflicker filtering to those regions identified by the analysis unit. In one example, the analysis unit may be arranged to identify regions of the image to which deflicker filtering is to be applied based at least on energy levels for a high frequency range component within the vertical frequency domain of the image data.

Abstract: An image display device includes a timing controller capable of overdriving. The timing controller has three line buffers, an image reverse processing unit, and an overdrive unit. The first line buffer buffers first line data of a second frame, wherein the second frame is generated later than a first frame. The second line buffer buffers first compressed data. The image reverse processing unit estimates first and second line data of the first frame according to the first compressed data. According to the first and second line data of the first and second frames, the overdrive unit outputs first and second lines of interleaving data for an interleaving frame. The interleaving frame is inserted between the first and second frames. With the third line buffer, the timing controller outputs the first and second lines of interleaving data at different time point.

Abstract: A method for reducing image artifacts in an image that includes a number of pixels each of which includes at least one video information value, includes generating a plurality of filter coefficients for at least some of the pixels of the image, on the basis of which the video information values of the pixels can be reconstructed. Artifact detection is performed to detect artifact regions within the image. At least some filter coefficients of those pixels that lie within the artifact regions are modified to generate modified filter coefficients. The video information values are synthesized using the filter coefficients, the modified filter coefficients being employed for the synthesis for pixels lying within the artifact regions.

Abstract: A method, apparatus, and computer-readable storage medium for removing flickering from a video of an object illuminated by a screen that operates on a refresh rate value (fscr) among a first value set including screen compatible refresh rate values, and an ambient lighting that operates on a certain line frequency value (fl) captured by a camera with a certain exposure time value (te) among a second value set including camera compatible exposure time values.

Abstract: Embodiments of the invention are directed to a system and method for controlling visual parameters of a capturing device to minimize clipping and saturation according to predefined parameters. The method may include processing pixel values of a current input frame of a received video signal captured by a capturing device; accumulating processing results of the current input frame to processing results of one or more previous input frames and calculating a desired dynamic range based on pre-determined user parameters. The processing may further include checking if the accumulated results are within the desired dynamic range and determining if adjustment is desired. If the accumulated results are not within the desired dynamic range, adjusting visual parameters for a subsequent input frame, by controlling the capturing device and if the accumulated results are within the desired dynamic range maintaining current visual parameters of the current input frame for the subsequent input frame.

Abstract: Deinterlacing of video involves converting interlaced video to progressive video by interpolating a missing pixel in the interlaced video from other pixels in the video. A plurality of interpolants are provided, each of which interpolates a pixel value from other pixels that are nearby in space and/or time. The data costs of using the various interpolants is calculated. A particular one of the interpolants is chosen based on the data costs associated with the various interpolants. The chosen interpolant is used to interpolate the value of the missing pixel. The interpolated pixel value may be refined based on exemplars. The exemplars may be taken from the video that is being deinterlaced.

Abstract: An apparatus including a first circuit and a second circuit. The first circuit may be configured to generate a first control signal, a second control signal and a third control signal in response to a first interlaced video signal. The second circuit may be configured to generate a second interlaced video signal in response to the first interlaced video signal, the first control signal, the second control signal and the third control signal. The second circuit may be further configured to vertically scale the first interlaced video signal in an extended vertical domain.

Abstract: Disclosed herein is an image taking apparatus including an image taking device, a gain adjustment circuit, and a correction circuit. The image taking device operates with timings based on a frame rate determined in advance and the total number of horizontal lines, has an electronic shutter allowing a shutter speed to be adjusted, receives light in a period equal to the shutter speed of the electronic shutter and carries out an opto-electrical conversion process on the light for every horizontal line in order to generate a predetermined signal. The gain adjustment circuit adjusts the gain of the electrical signal received from the image taking device. The correction circuit compares an image taking video signal with a reference video signal to compute a flicker component as a component oriented in the vertical direction of an image represented by the image taking video signal in a flicker correction process of eliminating flickers.

Abstract: The present invention relates to a video picture display method that aims to reduce the effects of blurring and multiple contours when the picture display frequency is doubled. According to the invention, for each source video picture, a video level dissymmetry is created between the two pictures from the source video picture after doubling the frequency in the areas in motion of the source video picture.

Abstract: An apparatus for detecting flicker noise disclosed in the present invention comprises an output unit for outputting a standard data for flicker noise judgment using a statistical calculation value for each calculated line based on brightness information of pixels for each line of an object image for flicker noise detection; a flicker line detection unit for detecting flicker lines, namely, lines corresponding to the standard data where the distance between the lines are within a predetermined allowance of a regular interval; and a judgment unit for comparing the number of the detected flicker lines with a standard number for flicker noise judgment to judge if the object image is a flicker noise image. The present invention can realize a method for detecting flicker noise, in which an image obtained with the reduced calculation time and use of a minimum memory has a robust in characteristics of a subject.

Abstract: An apparatus outputs an image signal for each frame, divides a frame into sub-frames, acquires a first signal of high frequency components and a second signal of low frequency components of a sub-frame, and generates a third signal by multiplying the second signal by K. If a fourth signal obtained by adding the third signal to the first signal falls within a predetermined range, the apparatus outputs the third signal, whereas if the fourth signal includes a portion exceeding the range, the apparatus outputs a signal obtained by correcting the third signal. The apparatus also generates a composition signal of the output signal and the first signal and a fifth signal by multiplying the third signal by a correction amount y of the third signal. As a sub-frame of interest, either the composition signal or the fifth signal is output.

Abstract: An image processing device includes an estimator, a first calculator, a selector, a determination module, and a third calculator. The estimator estimates a motion vector to reference images of an input video from a target pixel of a process target image. The first calculator calculates candidate pixel values corresponding to positions in the reference images. The selector selects a motion vector for which the error is small as many as the number smaller than the number of motion vectors acquired for the target pixel. The determination module determines the candidate pixel values corresponding to the selected motion vectors. The third calculator calculates a pixel value after correction of the target pixel from an arithmetic average or a weighted sum of the candidate pixel value determined equal to or less than the reference and the pixel value of the target pixel.

Abstract: A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video.

Abstract: An integrated circuit comprises deflicker unit is described for adaptively applying deflicker filtering to image data to be displayed using an interlaced scan line technique. The deflicker unit comprises analysis unit arranged to receive the image data and identify at least one region of an image to which deflicker filtering is to be applied, and filter arranged to apply deflicker filtering to those regions identified by the analysis unit. In one example, the analysis unit may be arranged to identify regions of the image to which deflicker filtering is to be applied based at least on energy levels for a high frequency range component within the vertical frequency domain of the image data.

Abstract: A flicker filter is adjusted according to degree of alpha blending performed on a display signal. For some weakly showing graphics images, a lower flicker filter level may be implemented or the flicker filter may be turned off. A threshold for turning off the flicker filter may be programmable. Other embodiments are described and claimed.

Abstract: The embodiments of the present invention provide for methods, devices, and systems adapted to reduce flickers introduced in the encoding process, particularly during the generation of intra-coded pictures. The method provides for the determination of flicker areas within pictures and applying a flicker-control cost function, for example, on those determined flicker areas when selecting an intra-prediction mode.

Abstract: In order to distribute low-frequency component image data L in image data for one frame to first and second sub-frames respectively as L1 and L2, a distribution of L2 in the low-frequency component image data L is decided. This decision is made based on a non-linear curve, so that when the low-frequency component image data L falls within a low-level region, a distribution rate of L2 is decreased, and when the low-frequency component image data L falls within a high-level region, the distribution rate of L2 is increased within a range that does not exceed 0.5. In this way, a negative-side clipping phenomenon of high-frequency components is suppressed in the low-level region, and flickers are suppressed in the high-level region.