Matches 1 - 50 out of 92 1 2 >


Match Document Document Title
US20070237237 Gradient slope detection for video compression  
A video encoder detects gradient slope content in a video picture by checking for gradient directions for plural regions (e.g., 16×16 macroblocks) in the video picture comprising plural pixels....
US20060114999 Multi-layer video coding and decoding methods and multi-layer video encoder and decoder  
Multi-layer video coding and decoding methods, multi-layer video encoder and multi-layer video decoder are provided. The multi-layer video coding method includes encoding a video frame having a...
US20070133688 Hardware multi-standard video decoder device  
A hardware multi-standard video decoder device. A command parser accesses a video stream and identifies a video encoding standard used for encoding the video stream. A plurality of hardware...
US20060013310 Temporal decomposition and inverse temporal decomposition methods for video encoding and decoding and video encoder and decoder  
Temporal decomposition and inverse temporal decomposition methods using smoothed predicted frames for video encoding and decoding and video encoder and decoder are provided. The temporal...
US20060029127 Controlling the distribution of different frames per second of a video stream to various recipients  
This invention discloses a system for distribution of real time video signals including at least one video camera generating at least one video signal at a supply frame rate, and at least two...
US20130077681 REFERENCE PICTURE SIGNALING AND DECODED PICTURE BUFFER MANAGEMENT  
Techniques are described related to performing random access starting from a random access point picture that is not an instantaneous decoder refresh picture. Some techniques are also related to...
US20080212682 Reduced resolution video transcoding with greatly reduced complexity  
A method for receiving encoded MPEG-2 video signals and transcoding the received encoded signals to encoded H.264 reduced resolution video signals, including the following steps: decoding the...
US20070058724 Methods and systems for mixed spatial resolution video compression  
A method for encoding a frame of visual data which includes the steps of encoding an original full resolution frame, storing coded data for the encoded full resolution frame, reconstructing and...
US20050195900 Video encoding and decoding methods and systems for video streaming service  
Video encoding and decoding methods and systems for video streaming are provided. The video encoding method includes encoding first resolution frames using scalable video coding, upsampling the...
US20070189392 Reduced resolution update mode for advanced video coding  
There is provided a video encoder, video decoder and corresponding encoding and decoding methods for respectively encoding and decoding video signal data for an image slice. The video encoder...
US20060083300 Video coding and decoding methods using interlayer filtering and video encoder and decoder using the same  
Video coding and decoding methods using interlayer filtering and a video encoder and decoder using the same are provided. Multi-layer video coding employing a plurality of video coding algorithms...
US20060233259 Switching decode resolution during video decoding  
The decode resolution of a video signal can be varied during decoding by decoding a first portion of a video signal at a first resolution; determining a second resolution, different from the first...
US20130156109 METHOD OF TRANSMITTING VIDEO INFORMATION OVER A WIRELESS MULTI-PATH COMMUNICATION LINK AND CORRESPONDING WIRELESS STATION  
The present invention a method of transmitting video information over a communication link made of several transmission paths between wireless transmitting and receiving stations. The method...
US20080159403 System for Use of Complexity of Audio, Image and Video as Perceived by a Human Observer  
A system and method for determining and using complexity of image, audio, or video information as perceived by a human observer is provided. The system and method may determine complexity of the...
US20080219353 DE-INTERLACING METHOD AND METHOD OF COMPENSATING A DE-INTERLACED PIXEL  
A luminance compensating method of compensating a de-interlaced pixel in a current block of a current frame with reference to a reference block of a reference frame is provided. First, calculate...
US20070140350 MOVING-PICTURE LAYERED CODING AND DECODING METHODS, APPARATUSES, AND PROGRAMS  
An input video signal is encoded at a plurality of coding layers exhibiting different spatial resolutions. Decoded is a given signal coded at a lower coding layer lower than a specific coding...
US20060093041 Intra-frame prediction for high-pass temporal-filtered frames in wavelet video coding  
A method of encoding a sequence of frames using 3-D decomposition, the method comprising dividing the frames into blocks and coding the blocks, wherein coding a current block comprises evaluating...
US20070201550 Method and apparatus for entropy coding in fine granularity scalable video coding  
An FGS entropy coding method is suitable for the case when the refinement coefficients at the FGS layer have different prediction from its base layer. When temporal prediction is used in FGS layer...
US20050063471 Flexible range reduction  
Techniques and tools are described for flexible range reduction of samples of video. For example, an encoder signals a first set of one or more syntax elements for range reduction of luma samples...
US20060222075 Method and system for motion estimation in a video encoder  
Described herein is a method and system for motion estimation in a video encoder. There are two parts to the motion estimation. Coarse motion estimation generates a set of motion vectors for a...
US20130039422 CODING OF A SPATIAL SAMPLING OF A TWO-DIMENSIONAL INFORMATION SIGNAL USING SUB-DIVISION  
Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative...
US20060008003 Embedded base layer codec for 3D sub-band coding  
Techniques and tools are described for scalable video coding and decoding. For example, a 3D sub-band video encoder includes an embedded base layer codec as well as temporal sub-band transforms...
US20060072666 Method for selecting output motion vector based on motion vector refinement and transcoder using the same  
A method of estimating output motion vector includes generating a group of candidate motion vectors, selecting two or more reference vectors, variably establishing a search window, and estimating...
US20070071104 Picture coding method and picture decoding method  
A picture coding device has: a coding controlling unit which decides whether or not a to-be-coded picture is to be coded as a high-resolution picture or a low-resolution picture, depending on a...
US20060140269 Video coding  
A method and apparatus for encoding an input video bitstream to produce an encoded output bitstream is disclosed. A base stream is enhanced based on enhancement control parameters. At least one...
US20080192830 METHOD OF ENCODING AND DECODING MOTION PICTURE FRAMES  
Provided is a method for encoding and decoding a motion picture frame, which achieve natural picture conversion of frames near an Instantaneous Decoding Refresh-I (IDR-I) frame. The decoding...
US20050213658 Methods and systems for encoding-decoding signals, and computer program product therefor  
A method for encoding and decoding media signals, includes the operations of generating at a transmitting side multiple descriptions associated to data of the media signals through a downsampling...
US20070127573 Hierarchical motion estimation for images with varying horizontal and/or vertical dimensions  
A method for implementing motion estimation comprising the steps of (A) performing a motion estimation search on one or more blocks of sub-sampled images to generate a first plurality of motion...
US20080298463 System, Method, and Computer-Readable Medium for Reducing Required Throughput in an Ultra-Wideband System  
A system, method and computer-readable medium for reducing the required throughput in an ultra-wideband system is provided. A temporal sub-sampling routine limits the number of frames, or portions...
US20060233258 Scalable motion estimation  
A number of features allow scaling complexity of motion estimation. These features are used alone or in combination with other features. A variable number of search seeds in a downsampled domain...
US20110013692 Adaptive Video Transcoding  
Embodiments of the invention describe a method for transcoding an input video in a first encoded format to an output video in a second encoded format, wherein the videos include a set of segments...
US20080130754 Memory reduced H264/MPEG-4 AVC codec  
A method for reducing memory utilization in a digital video codec. The method generally includes the steps of (A) generating a second reference picture by downsampling a first reference picture...
US20070133689 Low-cost motion estimation apparatus and method thereof  
Provided are motion estimation algorithm development and design of a structure for implementing hardware of a motion estimator. A hardware structure that simultaneously satisfies MPEG-4 and H.264...
US20070071103 APPARATUS FOR DIGITAL VIDEO FORMAT DOWN-CONVERSION WITH ARBITRARY CONVERSION RATIO AND METHOD THEREFOR  
The efficient motion compensation apparatus for digital video format down-conversion with variable conversion ratio is disclosed. The apparatus is characterized by an interpolation and decimation...
US20060072665 Methods and transcoders that estimate an output macroblock and motion vector for video transcoding  
Methods and transcoders are disclosed for video transcoding input macroblocks to an output macroblock. One of the methods estimates an output macroblock mode for the video transcoding. A spatial...
US20050195899 Method and apparatus for video coding, predecoding, and video decoding for video streaming service, and image filtering method  
A method and apparatus for video encoding, predecoding, and video decoding for video streaming services. The video encoding method includes encoding first and second video sequences into first and...
US20080165857 METHOD AND SYSTEM FOR SAMPLING VIDEO DATA  
A method and system for sampling video data uses re-sampling filters having lengths optimized relative to a quantization parameter of video processing. The method uses modeling of an optimal...
US20060013308 Method and apparatus for scalably encoding and decoding color video  
A scalable encoding and decoding method and apparatus based on color information of moving pictures are provided. The color video encoding method comprises: generating an encoded luminance...
US20090232220 System and method for reformatting digital broadcast multimedia for a mobile device  
A system and a method reformat digital broadcast multimedia for a mobile device. The system and the method reformat and/or repackage audiovisual content into a format that may be rendered on the...
US20070195887 Method and apparatus for reduced resolution update video coding and decoding  
There are provided encoders, decoders, encoding methods, and decoding methods for video signal data for an image block. An encoder for encoding video signal data for an image block includes a...
US20120236939 Sub-band video coding architecture for packet based transmission  
Sub-band video coding architecture for packet based transmission. Video processing includes converting of a frame or picture of a video signal into a number of respective sub-bands or sub-frames...
US20070009039 Video encoding and decoding methods and apparatuses  
Video encoding and decoding methods and apparatuses are provided which are effective for error correction and error concealment in an error-prone environment. The video encoding method includes...
US20080069239 DYADIC SPATIAL RE-SAMPLING FILTERS FOR INTER-LAYER TEXTURE PREDICTIONS IN SCALABLE IMAGE PROCESSING  
A dyadic spatial down sampling filter having tap values configured according to a Kaiser window function a beta factor of approximately 2.5, having approximately 1.5 side lobes, and having a down...
US20070086520 Intra-base-layer prediction method satisfying single loop decoding condition, and video coding method and apparatus using the prediction method  
A method and apparatus for improving the performance of a multi-layer based video codec are provided. The method includes obtaining a difference between a base layer block corresponding to a...
US20070230581 VIDEO DECODING IN A RECEIVER  
The disclosure is directed to a receiver. The receiver includes a video decoder and a frame throttle configured to receive a video sequence comprising a plurality of video frames. The frame...
US20060140276 Encoding method and apparatus enabling fast channel change of compressed video  
A video encoder and corresponding method are described for enabling fast channel change of compressed video, where a video encoder for receiving input pictures and providing compressed stream data...
US20060062295 Two-layer encoding for hybrid high-definition dvd  
A hybrid high-definition encoder and method are disclosed, for processing signal data as a plurality of block transform coefficients for each of base layer data and enhancement layer data, where...
US20060133502 Image down-sampling transcoding method and device  
In an image down-sampling transcoding method, by reducing an MPEG SP (simple profile) video bit stream having a CIF (Common Intermediate Format) size into a half in image size in a pixel domain,...
US20070116126 Multipass video encoding and rate control using subsampling of frames  
An encoder includes an encoder engine, a storage device and a controller to implement an iterative coding process. The encoder engine compresses a selected portion of a data sequence. The storage...
US20050226335 Method and apparatus for supporting motion scalability  
A method and apparatus for supporting scalability for motion vectors in scalable video coding are provided. The motion estimation apparatus includes a motion estimation module searching for a...

Matches 1 - 50 out of 92 1 2 >