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7433526 |
Method for compressing images and image sequences through adaptive partitioning
An image is compressed by selectively performing at least one of palettization and interframe coding on certain regions of the image. The regions are adaptively determined.
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7426315 |
Method for reducing blocking artifacts
A method for removing blocking artifacts from moving and still pictures, comprising classifying horizontal and vertical boundaries in each picture as blocky or non-blocky; for each blocky boundary,...
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7415392 |
System for separating multiple sound sources from monophonic input with non-negative matrix factor deconvolution
A method and system separates components in individual signals, such as time series data streams. A single sensor acquires concurrently multiple individual signals. Each individual signal is...
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7408488 |
Digital signal coding apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method
A digital signal coding apparatus and method makes a compression coding of a digital signal. The coding apparatus and method codes the digital signal by determining a context model to be used for...
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7408991 |
Error detection in low bit-rate video transmission
A method for decoding video data blocks using variable length codes, comprising transforming information about the spatial frequency distribution of a video data block into pixel values. Prior to...
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7406124 |
Systems and methods for allocating bits to macroblocks within a picture depending on the motion activity of macroblocks as calculated by an L1 norm of the residual signals of the macroblocks
The invention is related to methods and apparatus that can advantageously be used in a video encoder to improve picture quality, to improve the speed of encoding, and the like. One embodiment of...
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7400678 |
Methods in transmission and searching of video information
In a method for transmission of video information between HTTP servers and clients in a shared network resource, particularly Internet, the video information is stored as a video file consisting of...
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7397852 |
Image processing apparatus and method, and image processing program
Picture data is compressed and encoded in consideration of visual characteristics of human beings against colors. A color of pixels is detected corresponding to color difference components Cb and...
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7397857 |
Method for transformation-coding full motion image sequences
In the case of a method for transformation encoding of moving-image sequences, motion vectors are estimated block-by-block, with which said motion vectors a motion compensation is carried out. The...
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7391808 |
System and method for upgrading processing capabilities of a media center
Video data encoded according to new compression standards may be processed by an existing client terminal using an adaptive module that transcodes the video data into a format compatible with the...
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7379609 |
Image processing apparatus and method for conversion between raster and block formats
An image processing apparatus for converting image data between a raster format and a block format including an image data processor for providing the image data including a luminance component and...
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7369066 |
Efficient 8×8 CABAC residual block transcode system
A circuit generally including a first module, a second module and a third module is disclosed. The first module may be configured to (i) generate a plurality of parsed residual blocks by parsing a...
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7369706 |
Image-data processing device, image-data processing method, image-data distributing device and image-data transmitting system
An image processing device for processing an original image divided into a plurality of blocks that are made up of a plurality of picture elements from encoded image-data which is obtained by...
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7366239 |
Method and system for compressing groups of basic media data units
The invention provides a method for compressing a group of basic media data units, the method comprising the steps of: (a) receiving the group of basic media data units; (b) for each basic media...
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7352811 |
Data encoding apparatus and method
A data encoding apparatus operable to encode a plurality of data blocks produces encoded data in accordance with at least one of a selectable target data quantity or a selectable target data...
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7349675 |
Low latency data stream encoding and transmission
Described is a communication system including mobile communication devices. In the described system, the mobile devices may be wrist-worn watches such as are in common use today, except that the...
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7346111 |
Co-located motion vector storage
A method for processing a video bitstream is disclosed. The method generally includes the steps of (A) determining co-located motion information for a plurality of co-located sub-blocks in a...
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7342966 |
MPEG table structure
A MPEG table data structure includes a data portion and a header. The header includes an action identifier field, and the action identifier field relates to data that identifies an action to be...
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7340101 |
Device and method for compressing and decompressing data for graphics display
A data compressing and decompressing device is adapted to be used with an image pickup device and a frame buffer. The data compressing and decompressing device includes a first data register in...
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7330595 |
System and method for video data compression
A system and method perform video data compression in a manner that limits the need for external memory access. Accordingly, the operational frequency of the local data bus is reduced and power...
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7321693 |
Image processing apparatus and image processing method including adjustment of coded data to specified target size
An image processing apparatus and an image processing method are disclosed for generating coded data having a desired data size at a high speed. The image processing apparatus includes a coding...
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7308146 |
Digital video compression
A method of compressing a current image of a sequence of images is disclosed. Firstly, the current image is transformed with a predetermined transform such as the DWT to provide a set of transform...
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7302006 |
Compression of images and image sequences through adaptive partitioning
An image is compressed by selectively performing at least one of palettization and interframe coding on certain regions of the image. The regions are adaptively determined.
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7298798 |
Method and system for decoding block codes
A method and system are disclosed for decoding block codes using a single decoder and trellis diagram. The signal can include at least one block code, and the block code can be modulated using at...
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7295613 |
Early detection of zeros in the transform domain
A method detects blocks that are to be indicated as skipped at an earlier stage of the encoding process, than would be the case with other implementations of the ITU H.263 and H.264 standards. The...
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7292731 |
Image encoder, image decoder, image encoding method, and image decoding method
The image coding apparatus is constituted comprising an atom extraction section 109 for acquiring position data indicating the positions of atoms of prediction residual data in macroblocks, for...
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7292635 |
Interframe wavelet video coding method
An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the...
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7292264 |
Multiple image processing and synthesis using background image extraction
A technique of efficiently extracting and synthesizing an object image from a plurality of images captured at different image magnifications. An image processing method of the present invention...
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7289494 |
Systems and methods for wireless communication over a wide bandwidth channel using a plurality of sub-channels
A method of communicating over a wideband communication channel divided into a plurality of sub-channels comprises dividing a single serial message intended for one of the plurality of...
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7289562 |
Adaptive filter to improve H-264 video quality
A method for reducing or eliminating coding artifacts in video pictures processed using intra block prediction methods, for example, according to the H.264 standard. The causes of the coding...
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7280600 |
Blockwise coding process, of MPEG type, in which a resolution is assigned to each block
The invention relates to a process for coding images transmitted according to the so-called multiresolution technique. According to this process, a step of pixel level processing of so-called mixed...
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7280689 |
Anti-compression techniques for visual images
In order to discourage compression of video and other visual image signal data that accompanies unauthorized reproduction, distribution and storage of such data, the signal data is modified in a...
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7272185 |
Moving picture encoding apparatus
Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through...
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7269288 |
Apparatus for parallel calculation of prediction bits in a spatially predicted coded block pattern and method thereof
A storage device stores rows of bits including a D 0 bit, an X 0 bit, an X 1 bit, a Y 0 bit, a Y 1 bit and a spatially predicted coded block pattern having an A 0 bit, an A 1 bit, an A 2 ...
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7269221 |
Encoding system using motion vectors to represent frame-to-frame changes, including motion vector grouping for coding or processing
Motion vectors encode for differences between segments of a reference frame and pixels of a current frame being encoded when the current frame is a nonkey frame. The motion vectors are encoded by...
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7263128 |
Triple-buffering method for overlapped motion compensation in a video decoder
A method of improving performance within video decoders subject to the execution of overlapped motion compensation. The method utilizes a triple-buffering approach to achieve rapid data transfers...
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7254175 |
Frame-accurate seamless splicing of information streams
A method and apparatus for generating universal splice point adapters, where during a splicing operation an “out-point splicing adapter” is used to transition from an exit stream, while an...
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7254824 |
Encoding optimization techniques for encoding program grid section of server-centric interactive programming guide
An interactive program guide (IPG) may include a program grid section and a multimedia section. The program grid section typically contains program information organized in a grid with a time axis...
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7251278 |
Procedure and system for performing motion estimation
A method and system for performing motion estimation in video image compression is provided. In the method and system, an associative memory device is used in motion estimation, and the group of...
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7248257 |
Low bandwidth transmission of 3D graphical data
A graphical data-compressor for compressing received arbitrary graphical data for subsequent transmission; where the graphical data-compressor comprises an input for receiving the received...
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7242715 |
Systems and methods for encoding redundant motion vectors in compressed video bitstreams
The invention is related to methods and apparatus that encode redundant motion vectors for predictive-coded visual object planes (P-VOPs) to increase the robustness of transmitted video signals....
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7242713 |
2-D transforms for image and video coding
A set of one and two-dimensional transforms is constructed subject to certain range limited constraints to provide a computationally efficient transform implementation, such as for use in image and...
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7239662 |
System and method for video error concealment
The present invention provides, in one embodiment, a system and method for concealing video errors. The system encodes, reorders, and packetizes video information into video data packets for...
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7227900 |
Differential encoding
An encoding apparatus operable to encode video data representing successive images, each image including a plurality of pixels. The apparatus includes a differential encoder arranged to encode each...
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7227898 |
Digital signal conversion method and digital signal conversion device
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section 11 , then decoded by a variable-length...
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7215707 |
Optimal scanning method for transform coefficients in coding/decoding of image and video
An optimal scanning method for coding/decoding an image signal is provided. In a method of coding an image signal through a discrete cosine transform, at least one is selected among a plurality of...
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7215679 |
Method, apparatus and data structure enabling multiple channel data stream transmission
A method, apparatus and data structure enabling multiple channel data stream transmission by inserting data to be transmitted into portions of a plurality of transport streams nominally including...
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7215710 |
Image coding device and method of image coding
The input image controller reduces the frame rate of a motion image signal as a preprocessing, provides process information indicating the skipped frames and/or skipped fields to the image coder,...
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7212573 |
Method and/or apparatus for determining minimum positive reference indices for a direct prediction mode
An apparatus comprising a first processing circuit and a second processing circuit. The first processing circuit may be configured to generate (i) one or more prediction samples and (ii) a...
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7197076 |
Method for locating partitions of a video image
A method for locating partitions of a video image is provided. The method is used to simplify the process of obtaining the related information of neighboring partitions during the coding and...
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