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US20150049804 VIDEO DECODER, VIDEO ENCODER, VIDEO DECODING METHOD, AND VIDEO ENCODING METHOD  
A video decoder decoding an encoded stream includes a parallel entropy decoding part to entropy decode the stream of blocks in block lines in parallel, a parallel QP prediction part to compute...
US20060126728 Parallel rate control for digital video encoder with multi-processor architecture and picture-based look-ahead window  
A method of operating a multi-processor video encoder by determining a target size corresponding to a preferred number of bits to be used when creating an encoded version of a picture in a group...
US20090110063 ENCODING APPARATUS, METHOD OF CONTROLLING THEREOF, AND COMPUTER PROGRAM  
An encoding apparatus comprises, a detection unit configured to determine a characteristic of the image of each of a plurality of blocks and to detect whether visual degradation in each block is...
US20090154558 METHOD FOR ADAPTIVE BIASING OF FULLY DIFFERENTIAL GAIN BOOSTED OPERATIONAL AMPLIFIERS  
Rate control algorithms are adapted to cover multiple encoding standards are described. A rate controller includes an input adaptation interface, a core rate controller, and an output adaptation...
US20060280242 System and method for providing one-pass rate control for encoders  
A one-pass rate controller for compressed video encoders that can be configured to comply with buffering schemes specified in video-coding standards. A plurality of RD-models with different window...
US20080031320 Apparatus for obtaining filtered values in a horizontal and veritcal direction  
In one embodiment, the apparatus includes a decoder. The decoder is configured to obtain at least three horizontally successive reference pixel values including a pixel to be filtered, and apply...
US20050281331 Method and system for dynamically configurable DCT/IDCT module in a wireless handset  
In a video processing system, a method and system for dynamically configurable DCT/IDCT module in a wireless handset are provided. A processor may be used to configure a quantization scheme and...
US20050243917 H.263/MPEG video encoder using average histogram difference and method for controlling the same  
A H.263/MPEG video encoder using an average histogram difference, and a method for controlling the same are disclosed. The H.263/MPEG video encoder generates a reference image frame for encoding a...
US20060268981 Method of enhancing images extracted from video  
Method and devices for enhancing still digital images extracted from a compressed video sequences are disclosed herein, wherein the compressed video sequence comprises at least one I-frame and at...
US20140307783 METHOD AND APPARATUS FOR MOTION VECTOR DETERMINATION IN VIDEO ENCODING OR DECODING  
Provided are motion vector determining method and apparatus for determining a motion vector via motion vector prediction. The motion vector determining method involves determining a candidate...
US20110249725 OPTIMAL SEPARABLE ADAPTIVE LOOP FILTER  
An adaptive loop filter utilizing separable filters within a quadtree-based adaptive loop filter (QALF). The filters for at least the P and B pictures are replaced with a separable filter to...
US20130188690 FAST MODE DETERMINING METHOD AND APPARATUS IN SCALABLE VIDEO CODING  
A prediction mode determining method in scalable video coding based on a structure of multiple layers is provided. The prediction mode determining method includes: deriving a coded block pattern...
US20130094571 LOW LATENCY VIDEO COMPRESSION  
A method and system are described for low-latency video. In the method a frame, selected from a group of frames, is divided into P-regions and an I-region based on an assigned refresh pattern in a...
US20110243221 Method and Apparatus for Video Encoding  
A method for encoding a video sequence of video frames. Each video frame includes a plurality of macro blocks. One video frame of the video sequence is encoded based on a first quantization...
US20120183043 Method for Training and Utilizing Separable Transforms for Video Coding  
A video encoded as a bit stream is decoded using trained sparse orthonormal transforms generated from decoded prediction residual signals, wherein the transforms have associated indices. A current...
US20060104351 Video/image processing devices and methods  
Video/image processing devices. A memory stores first processed data, second processed data, and discrete cosine transformed data. An MPEG subsystem processes an MPEG codec according to first...
US20070036214 Coding apparatus, coding method, coding program and recording medium  
Searching an optimal quantization step size at high speed when controlling the coding rate of an image sequence. A skip binary search section determines quantization step size Δskip by binary...
US20140241421 Systems and Methods of Encoding Multiple Video Streams with Adaptive Quantization for Adaptive Bitrate Streaming  
Systems and methods for encoding multiple video streams in accordance with embodiments of the invention are disclosed. In one embodiment, a method for encoding source video as alternative video...
US20130121407 VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE  
A video encoding device and a video decoding device prevent an increase in the number of lines of a reference line buffer in a pseudo random noise injection process. The video encoding device...
US20130279566 SYSTEM, COMPONENTS AND METHOD FOR PARAMETRIC MOTION VECTOR PREDICTION FOR HYBRID VIDEO CODING  
Parametric Motion Vector Prediction (PMVP) methodologies and components and systems for performing those methodologies are provided to more effectively and efficiently encode video content that...
US20050036544 Video coding rate control  
The quantizer parameter for video encoding of the H.263 or MPEG-4 type updates in response to buffer discrepancy adapts to the targeted number of bits per frame, and saturates the maximum change...
US20070147497 System and method for progressive quantization for scalable image and video coding  
An improved system and method for dequantizing progressively quantized signals in scalable image and video coding. A decoder performs simple dequantization, such as normal uniform dequantization,...
US20060209952 Image encoding/decoding method and apparatus therefor  
An image encoding method includes generating a predictive signal and encoding mode information according to each encoding mode from a macroblock signal corresponding to each macroblock, selecting...
US20110235707 ENCODING APPARATUS, CONTROL METHOD FOR ENCODING APPARATUS AND PROGRAM  
A control method for an encoding apparatus which performs bit rate control includes an acquiring step of acquiring a first quantization parameter as a quantization parameter to be used for...
US20090067492 Method and Device for Minimizing a Quantization Errror  
A device minimizes a quantization error in the inverse quantization of a quantized coefficient during a compression method, said quantization error describing a difference between the quantized...
US20060227867 Method for coefficient bitdepth limitation, encoder and bitstream generation apparatus  
A method for coefficient bitdepth limitation in an encoder and/or bitstream generation apparatus including the steps of (A) generating one or more residual block coefficients in response to a...
US20110200103 VIDEO ENCODING/DECODING APPARATUS, DE-BLOCKING FILTER AND FILTERING METHOD BASED ON INTRA-PREDICTION DIRECTIONS FOR SAME, AND RECORDING MEDIA  
A video encoding/decoding apparatus, a deblocking filter and filtering method based on intra-prediction directions for same, and recording media are disclosed, and the deblocking filter includes:...
US20070153892 Encoder with adaptive rate control for h.264  
A video encoder is disclosed, the encoder for encoding image frames that are divisible into macroblocks. The video encoder includes means for generating a QP estimate for the macroblocks of an...
US20110150079 16-POINT TRANSFORM FOR MEDIA DATA CODING  
In general, techniques are described for implementing a 16-point discrete cosine transform (DCT) that is capable of applying multiple IDCT of different sizes. For example, an apparatus comprising...
US20080181298 HYBRID SCALABLE CODING  
Systems, apparatuses and methods whereby coded bitstreams are delivered to downstream end-user devices having various performance capabilities. A head-end encoder/video store generates a primary...
US20060104350 Multimedia encoder  
A video bit stream having a constant frame rate is generated from an input having a frame rate that is different than the constant frame rate. Zero-motion difference frames are added to the bit...
US20060039473 Method for transcoding compressed video signals, related apparatus and computer program product therefor  
Transcoder apparatus for transcoding an input video bit-stream having a first encoding profile (e.g., MPEG-2) into an output video bit-stream having a second encoding profile (e.g., H.264), the...
US20060013298 Multi-pass video encoding  
Some embodiments of the invention provide a multi-pass encoding method that encodes several images (eg., several frames of a video sequence). The method iteratively performs an encoding operation...
US20070286277 Method and system for video compression using an iterative encoding algorithm  
Certain aspects of a method and system for video compression using an iterative encoding algorithm are disclosed. Aspects of a method may include modifying dynamically, a coding rate of at least a...
US20110235706 REGION OF INTEREST (ROI) VIDEO ENCODING  
A method of encoding an image frame in a video encoding system. The image frame has a region of interest (ROI) and a non region of interest (non-ROI). In the method, quantization scale for the...
US20100278508 Method and system for scalable multi-user interactive visualization  
A scalable method and apparatus is described to provide personalized interactive visualization of a plurality of compressed image data to a plurality of concurrent users. A plurality of image...
US20060039472 Methods and apparatus for coding of motion vectors  
A method and apparatus is described for coding motion information in video processing of a stream of image frames and for avoiding the drift problem. The method or apparatus is for providing...
US20060133501 Motion estimation and compensation method and device adaptive to change in illumination  
Provided are a motion estimation device and method adaptive to change in illumination. The motion estimation method includes the steps of: generating a current frame pattern block for a current...
US20150016511 IMAGE COMPRESSION APPARATUS AND METHOD  
An image compression apparatus including an image segmenting unit to segment an image into a plurality of image blocks; a prediction unit to take an adjacent pixel to which each pixel points in...
US20150195537 Method of Coding and Decoding Images, Coding and Decoding Device and Computer Programs Corresponding Thereto  
A method for coding includes; segmenting an image into blocks; grouping blocks into a number of subsets; coding, using an entropy coding module, each subset, by associating digital information...
US20070280350 Method of assigning priority for controlling bit rate of bitstream, method of controlling bit rate of bitstream, video decoding method, and apparatus using the same  
A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference...
US20080247462 Flowfield motion compensation for video compression  
Motion compensation for video compression using a “flowfield” comprising a per-pixel field of motion vectors and confidence values. Flowfields can be quantized transform coded for compression...
US20080219346 METHOD FOR EFFICIENT ENCODING AND DECODING QUANTIZED SEQUENCE IN WYNER-ZIV CODING OF VIDEO  
A computer-based method for encoding and decoding quantized sequences in Wyner-Ziv coding of video, bi-partite graph is used in an iterative process. The method takes as input to an encoder a...
US20090080518 Rate control and video denoising for noisy video data  
A method and a computer-readable medium containing computer program for simultaneously performing rate control and video denoising for video corrupted by noise are presented. Video data includes...
US20070116114 Method and apparatus for encoding or decoding two digital video signals arranged in a single-video signal path  
In high-end professional video cameras a triax system is used for transferring various signals back and forth over a single coaxial cable between the camera and a base unit using frequency...
US20060104352 Block matching in frequency domain for motion estimation  
The invention provides a method to reduce the computation complexity by performing the motion estimation in the frequency domain with tiny hardware overhead and a little modification of the video...
US20110116543 BLOCK TRANSFORM AND QUANTIZATION FOR IMAGE AND VIDEO CODING  
An improved method and block transform for image or video encoding and decoding, wherein transformation and inverse transformation matrixes are defined such that computational complexity is...
US20070058716 Bit-rate reduction for multimedia data streams  
Systems and methods for reducing a bit-rate in a multimedia data stream while maintaining high image quality. Two consecutive frames of the multimedia data stream are spatially filtered,...
US20060109904 Decoding apparatus and program for executing decoding method on computer  
The generation of thumbnail images from encoded image data at high speed is carried out. In decoding encoded image data, without performing inverse DCT, only the DC coefficient among the DCT...
US20090154557 MOTION COMPENSATION MODULE WITH FAST INTRA PULSE CODE MODULATION MODE DECISIONS AND METHODS FOR USE THEREWITH  
A video encoder includes a mode decision module that determines a final macroblock cost for each macroblock of the plurality of macroblocks based on costs associated with a plurality of motion...