Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for reduced computing device power consumption. Example methods disclosed herein includes detecting frame updates corresponding to input frames to be presented by a display, causing a programmable timer to generate second interrupts corresponding to first interrupts generated by a display engine, the second interrupts to be generated when there are no frame updates detected for at least a first duration of time defined by a first threshold. Example methods further include causing the display engine to transition to a low power state when (1) the programmable timer is configured to generate the second interrupts and (2) no frame updates have been detected for at least a second duration of time following the first duration of time, the second duration of time defined by a second threshold.

Abstract: Approaches to delivering video in a chroma sampling format with a higher chroma sampling rate (such as a YUV 4:4:4 format) using a video encoder and decoder that operate on video in another chroma sampling format with a lower chroma sampling rate (such as YUV 4:2:0) are described. A video decoder can recover stationary content in video at the higher chroma sampling rate, even when the video is encoded and decoded at the lower chroma sampling rate, without significantly increasing bit rate. In some example implementations, the approaches preserve chroma information from pictures in a higher-resolution chroma sampling format, while leveraging commercially available codecs adapted for a lower-resolution chroma sampling format such as YUV 4:2:0, which is widely supported in products.

Abstract: In general, it is proposed to define a new expiry mechanism for a data file being received at the client. In the following it is proposed that the expiry time on the receiver side should be “shortly” after a possible reception of all packets. It is proposed that the receiver should know as precisely as possible that no additional packets for that data file are expected anymore. As soon as the receiver can safely regard the reception of the file, the receiver could either move on to the next segment (delay optimization) or try to make use of the received information.

Abstract: A display system includes a host device that provides source data to a display. The source data includes one or more data-centric blocks free from a fixed-frame size imposition, fixed-frame rate imposition, or both from the display. Further, the source data includes presentation data. The display system includes a display that receives the source data, decodes the source data to discern a presentation time, a presentation positioning, or both for the presentation data. Further, the display presents the presentation data according to the presentation time, the presentation positioning, or both.

Abstract: Provided is an apparatus for processing a video. The apparatus for processing a video includes an image receiving module that is configured to receive encoded data, a filtering module that is configured to filter an image frame reconstructed from the encoded image, a block dividing module to divide the filtered image frame into a predetermined block dividing unit, a compression module to compress each of the plurality of blocks, to package the compressed plurality of blocks into a predetermined packaging unit, and to generate lookup table information corresponding to each of the packaged block, a frame buffer memory that is configured to record the packaged data, a first decompression module that is configured to perform first decompression of one or more of the recorded blocks corresponding to a particular frame for motion compensating by using the lookup table information, and a converter that is configured to decompress the recorded blocks to output sequentially by using the lookup table information.

Abstract: Described are a system and method to determine the initial luma and chroma phase such that the resulting image after chroma upsampling and scaling has zero phase difference between the luma and chroma components. Particularly, the described method may include receiving a subsampled input image having luma and chroma values. The method may then perform a phase computation of the input image to determine scaling parameters such that phase differences between all color components of an output image are zero. The method may then include performing a combined upscaling and upsampling process on the input image using the scaling parameters to generate an upscaled image with no phase difference from the subsampled image.

Abstract: Systems, methods, and devices for sharpening image data are provided. One example of an image signal processing system includes a YCC processing pipeline that includes luma sharpening logic. The luma sharpening logic may sharpen the luma component while avoiding sharpening some noise. Specifically, a multi-scale unsharp mask filter may obtain unsharp signals by filtering an input luma component, and sharp component determination logic may determine sharp signals representing differences between the unsharp signals and the luma component. Sharp lookup tables may “core” the sharp signals, which may prevent some noise from being sharpened. Output logic may determine a sharpened output luma signal by combining the sharp signals with, for example, luma component or one of the unsharp signals.

Abstract: A method comprising rendering a video display signal comprising combining local illumination video objects from different sources into each frame of a plurality of frames, wherein the local illumination video objects are video objects on which chromatic adaptation was performed using an illumination reference common to all video objects. An apparatus comprising a processor configured to render a video display signal comprising combining local illumination video objects from different sources into each frame of a plurality of frames, wherein the local illumination video objects are video objects on which chromatic adaptation was performed using an illumination reference common to all video objects.

Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.

Abstract: Image data may be color graded, distributed and viewed on target displays. Mappings that preserve mid-range points and mid-range contrast may be applied to view the image data for color grading and to prepare the image data for display on a target display. The image data may be expanded to exploit the dynamic range of the target display without affecting mid-tone values.

Abstract: An invention is disclosed for encoding and decoding data in a 4:4:4 subsampling scheme, using an encoder/decoder that is not configured to encode or decode data in 4:4:4. In embodiments, an encoder planararizes an input frame into three component frames in a 4:0:0 scheme. The encoder then encodes each component frame in the 4:0:0 scheme, and aggregates the encoded component frames into a bit stream. A decoder receives such a bit stream, and decodes it with a component not configured to decode data in 4:4:4. The decoder decodes the bit stream to produce a representation of the three component frames in 4:0:0, then aggregates the three component frames into a representation of the original frame in 4:4:4.

Abstract: Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data.

Abstract: The present invention provides a high definition media interface (HDMI) controller having a modular design internal bus structure, and applications thereof. The controller includes a circuit interface, an address decoder coupled to the circuit interface, a plurality of sub-circuits, wherein each sub-circuit includes registers used to configure and control the sub-circuit, and a bus that couples the registers of each sub-circuit to the address decoder. After startup of the controller, the sub-circuits are configured by using the circuit interface, address decoder, and bus to write values to the registers of the sub-circuits. The sub-circuits of the controller include a video pixel sampler, an audio sampler, a frame composer, and a power controller. The video sampler can be configured to convert one of a plurality of RGB and YCbCr signals to a common format signal used by other sub-circuits of the controller.

Abstract: Video signal data characterized by an extended dynamic range and/or an extended dimensionality is accepted. The accepted video signal data is converted into a different color space. Extended dynamic range and/or extended dimensionality data may be mapped to a container format that conforms to a legacy media interface. The extended dynamic range/dimensionality data are thus transportable over the legacy media interface.

Abstract: Embodiments describe methods, apparatus and systems to provide video display correction to provide an on-axis view at an off-axis angle so that the display surface displays a rectangular video image. For instance, a device may receive a stream of video data to be displayed on a display surface of a display, the video data having a first rectangular aspect ratio to be viewed from an on-axis location with respect to the display surface. The device may also receive a user selection of an off-axis viewing angle with respect to the display surface. The device may then correct the first rectangular aspect ratio to a second, non-rectangular aspect ratio based on the off-axis viewing angle, so that from the off-axis angle, the display surface appears to display a rectangular video image. Other embodiments are also described and claimed.

Abstract: Color information decoding on a composite video signal that includes modulated color information for an analog television receiver. A first burst locked oscillator (BLO) operates in a first loop gain, and a second BLO operates in second loop gain and is operatively connected to the first BLO. The first loop gain is higher than the second loop gain. A method includes receiving, in a first burst accumulator, mixed down color information directly from a first phase detector without filtering the mixed down color information, converting the composite video signal to a burst gate signal, accumulating one or more of the burst gate signal, and calculating a frequency offset for the second BLO in the first BLO expedite the calculating of the frequency offset and to compensate for the second BLO operating in the second gain loop.

Abstract: A display apparatus includes a display for block interlace scanning such that scanning lines in the display screen are classified into M blocks, and the interlace scanning is conducted one block by one block, to display on the M blocks the video data in the speed of M times in the same display timing as a speed of a single times.

Abstract: Based on image data input to a display unit and an image on a display surface acquired by an acquisition unit, control is performed to decrease the difference between the input image data and the image displayed on the display surface.

Abstract: The first color gamut conversion unit 102 limits, in a visually natural manner, an output signal to a signal within a range of the DCI color gamut through well-known color gamut conversion processing when there is a color region exceeding the DCI color gamut, the output signal being obtained through the imaging by the imaging unit 101 and represented by the primaries (R, G, and B) determined by a color filter of an image sensor of the camera. It is to be noted that a color gamut conversion technique may be any technique which can limit a color gamut such as gamut conversion processing (Non Patent Literature: “Fundamentals of Color Reproduction Engineering”, Corona Publishing Co., Ltd., pp. 178-180).

Abstract: This product is a method for the reuse of Cathode Ray Tube computer monitors as HDTVs. It is an appliance that takes HD signals from antenna, cable or video devices and converts them to VGA signals, letting the CRT display a high-quality image. Using this product, millions of CRT monitors—that otherwise would be dispose of as E-Waste—can be reused, which helps the environment.

Abstract: In a digital video processing system for processing full-motion video in computer terminal systems, two main rendering paths are created for a computer terminal system: a screen buffer path and a full-motion video path. The screen buffer path renders a desktop display from a screen buffer within the terminal system. The full-motion video path decodes a video stream and then processes the decoded video stream with a video processing pipeline to fit the video frames within a destination video window within the desktop display. The video processing pipeline performs clipping, blending, chroma resampling, resizing, and color converting of the video frames in pipelined stages with minimal memory accesses. A video adapter then combines the desktop display with the processed digital video for a final terminal display.

Abstract: According to one embodiment, an IP converter converts an interlaced color difference signal, in which the number of pixels in a vertical direction of a color difference signal is half that of a luminance signal, into a progressive color difference signal. A diagonal correlation detector detects a diagonal correlation of the progressive color difference signal, and obtains a correlative direction detected signal. A controller outputs a field selection signal to determine whether the progressive color difference signal is a signal in a top or bottom field. And a pixel generator changes a ratio between pixels of an nth and an n+1th line of the progressive color difference signal according to the field selection signal, when generating a new pixel by using corresponding pixels of the nth and n+1th lines based on the correlative direction detected signal.

Abstract: Image deterioration when image data containing scanning lines of the previous and next fields mixed together by video editing is displayed is prevented. An inter-field scanning line interpolating unit superimposes scanning line data of the previous and next fields of interlacing image data in a video stream input from a tuner or a memory card to perform inter-field scanning line interpolation, and generates progressive image data corresponding to that video stream. An IP-conversion selection signal indicating a determination result whether or not the reliability of the video stream meets a predetermined level is input into a back-end from a CPU. A selector refers to the IP-conversion selection signal, and when the CPU determines that the reliability of the video stream is lower than the predetermined level, image data having undergone interpolation by the inter-field scanning line interpolating unit is selected as an image to be displayed.

Abstract: A video switching and control system is described that provides compatibility with conventional analog cameras while also accepting network IP type cameras. The system offers reduced control latency, improved recording efficiency, and more flexible display features with greatly improved performance and update rates. The system offers greatly reduced wiring and installation complexity thus improving reliability. The architecture is scalable and expandable in either the analog camera count or the IP camera count. The system integrates these two camera technologies so that the camera source or recorder is transparent to the user. Each user can control all video sources, analog, IP, or recorded, from one keyboard and one or more monitors at each work station. The unique all digital solution provides digital reliability and broadcast quality performance.

Abstract: A video apparatus is provided with automatic deinterlacing and inverse telecine pre-filtering capability to automatically analyze the frames of the video to determine at least whether the video is one of telecine, non-telecine progressive and non-telecine interlaced formatted, and to automatically reformat the video into a non-telecine progressive format if the video is determined to be one of telecine and non-telecine interlaced formatted.

Abstract: A method for transmitting a man-machine operation picture, a mobile video device thereof, and a video system using the same are provided, which are applicable to a first mobile video device and a second mobile video device wirelessly connected to each other, and the first mobile video device includes a first screen. A display picture data is obtained from a video buffer of the first screen. The first screen displays a first picture according to the display picture data. The first mobile video device converts the display picture data into a video data compliant to a video format, and transfers the video data to the second mobile video device according to a video communication protocol. The second mobile video device displays a second picture according to the received video data, and a displaying content of the second picture substantially includes a displaying content of the first picture.

Abstract: According to an aspect of the invention, an information processing apparatus configured to be connected to a conversion adaptor having a video input connector and a video output connector, the apparatus including: a video output port complying with the first standard for connection of the video input connector; an image processing module configured to output a first signal when the video input connector is not connected to the video output port, the image processing module being configured to output a second signal when the video input connector is connected to the video output port; and a bias module connected to the video output port and the image processing module and configured to output a third signal to the video output port, the bias module being configured to change physical layer information of the first signal or the second signal.

Abstract: A letterbox detector includes a detection module configured to determine aspect ratio changes in an input signal. A transition module is configured to transition between a plurality of display modes associated with the aspect ratio changes. A first display mode to a second display mode transition is performed over a first period of time, and a second display mode to a first display mode is performed gradually over a second period of time, that is different from the first period of time. The letterbox detector may be included in digital and analog displays.

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: A method and apparatus for controlling access to a video system based on bandwidth consumption include processing that begins as the server monitors bandwidth utilization of connections within the video system. The processing continues when the server receives a request to access a video program via the connection from a client device of the video system. The processing then continues as the server determines whether determine whether the client device has subscribed to receive the video program at the first quality level. When the client device has not subscribed to receive the video program at the first quality level, the video quality of the video program is converted from the first quality level to a video quality subscribed to by the client device.

Abstract: An image signal generation unit comprises a horizontal pixel number conversion unit for performing the conversion of horizontal direction pixels corresponding to horizontal scanning period of NTSC system, for digital image data of the chrominance difference having the picture element number configuration based on the VGA standard, and a liquid crystal encoder for generating the primary color group digital image data RGB from digital image data YUV processed by the horizontal pixel number conversion unit, and output them directly on a liquid crystal display.

Abstract: An information processing apparatus that has a frame buffer that stores an input video signal, that loads a video signal at an asynchronous timing with the video signal input from the frame buffer and then that I/P-converts the loaded video signal from an interlaced signal into a progressive signal includes: pulldown determination means that determines whether the input video signal is subjected to a process of skipping or repeating a source video signal through a pulldown process; and control means that, when it is determined that the input video signal is subjected to the process of skipping or repeating, controls a process of skipping or repeating the loaded video signal to obtain a pulldown pattern supported at an I/P conversion side at which the I/P-conversion is performed, when the loaded video signal is converted from an interlaced signal into a progressive signal.

Abstract: According to one embodiment, an embodiment of a pixel conversion device of the invention improves outlines of edge peripheries of characters, etc., of a color digital image signal. The device includes a histogram extraction module, a picture characteristic extraction module which detects a luminance boundary in a luminance signal block on the basis of histogram information, sets a color-difference boundary of the same pattern as that of the luminance boundary to a virtual color-difference signal block, and generates a control signal for unifying the same area by pixel data of the same value, and a data rate conversion module which converts a color-difference signal block before conversion into the same data rate as that of the luminance signal block to correlate the converted color-difference signal block to the virtual color-difference signal block, corrects resolution and obtains a color-difference signal for a format of 4:4:4.

Abstract: A system having a memory and a processor is disclosed. The memory may be arranged as (i) a first pipeline to buffer a plurality of full resolution fields and (ii) a second pipeline to buffer a plurality of low resolution fields. The processor is generally configured to (i) receive a particular one or more of the full resolution fields and a particular one or more of the low resolution fields from the memory and (ii) generate a film mode signal based on the particular low resolution fields, the film mode signal indicating a current mode among a plurality of pull-down modes related to a current field being deinterlaced.

Abstract: A video display system includes an image processing unit receives continuously an input video signal including input frame signals for generating an output video signal including output frame signals having a higher frame rate than the input frame signals; and a display unit for displaying a video image in accordance with the output frame signals , wherein each of the input frame signals has 2?M gray scale levels for each pixel, the image processing unit further generates the output frame signals including at least a first output frame signal having 2?N gray scale levels with N?M for each pixel and a second output frame signal having [2?M-2?N] or fewer gray scale levels for each pixel.

Abstract: According to one embodiment, a video signal processor has a moving block determining module, a vertical edge detector, a moving block number counter, a moving field determining module, a pulldown pattern detector, and a pulldown signal determining module. The moving block determining module divides each field configuring an input video signal into a plurality of blocks, and determines a motion of a block within the plurality of blocks, the block of which the motion is determined having a same spatial position within two fields adjacent to each other. The vertical edge detector detects a vertical edge within each of the plurality of blocks in the each field. The moving block number counter counts a number of moving blocks excluding a block having the vertical edge within a screen based on the detection result of the vertical edge detector and the determination result of the moving block determining module.

Abstract: According to this method for processing a digital video stream of colour images intended to be displayed on a matrix screen formed of macropixels having at least four subpixels each, the colour components of each image are transformed into an RGB format based on a polygonal representation of the colour components, and designed for the display of images using at least four colours by activating the four subpixels. The colour components of the image are adapted in the course of said transformation.

Abstract: An apparatus for converting three-color image signals to four-color image signals including a white signal comprises a data processor which generates the four-color image signals from the three-color image signals, calculates distortion values associated with conversion to the four-color image signals, and calculates scaling factors from the distortion values, the scaling factors being used to scale image signals in generating the four-color image signals. A method for operating the apparatus is also provided.

Abstract: An image processing apparatus detects an amount of pixel motion in a plurality of field images included in interlace image data, and determines a pixel region having a large motion by comparing the amount of the motion of the detected pixel to a predetermined threshold value. An image processing apparatus combines a predetermined pattern with the pixel region that has a large motion and is converted from the interlace image.

Abstract: Methods, systems and apparatuses are disclosed for approximating vertical and horizontal correction values in a pixel value correction calculation. Multiple vertical and/or horizontal correction curves are used and may be employed for one or more color channels of the imager. The use of multiple correction curves allows for a more accurate approximation of the correction curves for image pixels.

Abstract: A proposition is to perform a high accurate chromatic coordinate conversion of a chromaticity value generated by a color sensor into a chromaticity value of a predetermined chromaticity coordinate system, and to perform an accurate color-reproduction. A chromatic coordinate converting apparatus includes a recording unit recording information representing a chromaticity coordinate system unique to the color sensor in advance, and a converting unit performing a chromatic coordinate conversion of a first chromaticity value being a chromaticity value generated by the color sensor into a second chromaticity value of the predetermined chromatic coordinate system based on the information recorded by the recording unit.

Abstract: Apparatus for display processing includes a host interface, which is arranged to accept graphical information from a first computer. A first display head is arranged to produce a first digital video signal including first frames representing the graphical information at a first frame rate, for displaying the graphical information on a local display of the first computer. A second display head is arranged to produce a second digital video signal including second frames representing the graphical information at a second frame rate that is lower than the first frame rate. A video redirection module is arranged to regulate a transmission rate of the second digital video signal from the second display head, to capture the second frames that are generated by the second display head and to forward the captured frames to a second computer.

Abstract: An adaptive de-interlacer can convert an interlaced video signal into a progressive video signal, and comprises an intra-field interpolator, an inter-field interpolator, a static pixel detector, a motion detector and a blending unit. The intra-field interpolator outputs an intra-field interpolated pixel based on a current field of the interlaced video signal, and the inter-field interpolator outputs an inter-field interpolated pixel based on successive fields of the interlaced video signal. The static pixel detector detects whether each interpolated pixel is a static pixel based on luminance differences between pixels of the successive fields with reference to a threshold and outputs a detection result. The motion detector generates a motion value for the interpolated pixel based on the successive fields and the detection result.

Abstract: A method of de-interlacing interlaced video information including determining functional equations which estimate trajectories of corresponding pixel locations based on statistical information, updating each functional equation with sampled pixel values from the interlaced video information of corresponding pixel locations, and evaluating the functional equations at a time point of a progressive frame and providing corresponding progressive pixel values. A video de-interlace system including a trajectory estimator and a component estimator. The trajectory estimator provides functional equations estimating trajectories of tracked pixel locations based on statistical information. The component estimator receives the functional equations and the interlaced video information and provides progressive pixel values.

Abstract: A method and a system is provided for deinterlacing interlaced video containing an interlaced image field f including scan lines of multiple pixels. Such deinterlacing involves detecting the one or more edge directions in the image field f using principal component analysis (PCA), and performing spatial interpolation to reconstruct a missing pixel value in the image field f substantially along each of the one or more detected edge directions.

Abstract: A sequential scanning conversion device includes: N (N is 3 or larger integer) line memories which store each input image data of successive N main scanning lines contained in input image data for interlaced scanning; an input/output control unit which sequentially selects one of the N line memories and writes the input image data to the selected line memory, and also reads (N?1) input image data written to the other (N?1) line memories in such timing at least a part of which overlaps with the writing timing; and an image processing unit which produces output image data for sequential scanning corresponding to M (M is one or larger integer) main scanning lines by applying predetermined process established in advance to the (N?1) input image data.

Abstract: An apparatus (24) is provided for interlacing a plurality of input images (I0, I1) to form an output image (O). The interlacing apparatus (24) comprises a programmable memory (20) for storing one or more interlacing configuration patterns (P1, P2 and P3) which define a mapping from pixels of the input images (I0, I1) to pixels of the output image (O). The interlacing apparatus (24) also comprises a pixel data rearranger or interlacer (16) for rearranging pixel data in accordance with a pattern (P) stored in the memory (20). A pattern controller (18) is provided for selecting any one of the patterns (P1, P2 and P3) for use in the interlacer (16). Such an interlacing apparatus (24) can be used to drive a display device such as a multiple view directional display device or an autostereoscopic display device. A deinterlacer, an image compressor and an image decompressor are also provided.

Abstract: In some embodiments, a method includes receiving a plurality of video signal fields, characterizing at least one portion of at least one of the plurality of video signal fields, determining a value for a pixel using inter-field de-interlacing if the characterization satisfies a first criteria, determining a value for a pixel using motion compensated de-interlacing if the characterization satisfies a second criteria, and determining a value for a pixel using intra-field de-interlacing if the characterization satisfies a third criteria. In some embodiments, an apparatus includes a storage medium having stored instructions that when executed by a machine result in the method.

Abstract: A color motion detection circuit includes 2 color correlation detection circuits for detecting a correlation of chrominance signals in a plurality of lines and detecting whether there is a color correlation between the lines, a 1 frame color motion detection circuit for performing a vertical band pass filter process to chrominance signals of a plurality of consecutive lines for each signal in a current frame and a previous frame and performing a 1 frame color motion detection according to the vertical band pass filter process result, and an output circuit to output a color motion detection result according to a detection result of the 1 frame color motion detection circuit in case either of the 2 color correlation detection circuits determines as a line correlation exists.

Abstract: An interlace motion artifact detector which identifies video image spatial frequencies characteristic of motion artifacts. The detected frequency is the maximum which can be represented by the vertical sampling rate of the video format (i.e., the Nyquist frequency). This frequency is detected by a pair of partial Discrete Fourier Transforms (DFT) which each calculate only the frequency component of interest. Additional vertical frequency components at one half and one quarter the interlace motion artifact frequency are also detected via a partial DFT. The presence of these lower frequencies acts as an indication of an erroneous motion artifact detection. Additionally, the dynamic range and maximum level of the video data is used as an indication of when to boost the frequency detection levels in areas of low brightness and/or contrast.