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7386049 |
Predictive interpolation of a video signal
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of generating an interpolated base frame image; receiving a first previously decoded difference...
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7349473 |
Method and system for selecting interpolation filter type in video coding
A method and system for coding a video sequence based on motion compensated prediction, wherein an interpolation filter is used to generate predicted pixel values for picture blocks in the video...
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7313386 |
Data processing system and method, communication system and method, and charging device and method
In a communication system for serving data corresponding to a request from the user and charging the user for the data served to the user, when the user designates a result of a desired one of a...
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7308028 |
Apparatus and method for generating mosaic images
The present invention relates to an apparatus and method for generating mosaic images, wherein photographed content is displayed as a still image by a digital TV display or video monitor for an...
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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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7280698 |
Method and apparatus for displaying noticeable image and system for remotely monitoring image
Coded, or compressed data of moving pictures is received through a transmission path. The picture type of the compressed data is detected from the received compressed data of moving pictures. If...
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7280599 |
Method for sub-pixel value interpolation
A method of interpolation in video coding in which an image comprising pixels arranged in rows and columns and represented by values having a specified dynamic range, the pixels in the rows...
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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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7251279 |
Apparatus of motion estimation and mode decision and method thereof
An apparatus and method of motion estimation and mode decision includes a candidate vector group generation unit generating a candidate vector group including a motion vector of an adjacent image...
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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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7231132 |
Trick-mode processing for digital video
A method for processing digital video data intended for normal mode display to obtain corresponding digital video data for trick-mode display includes modifying the normal mode digital video data...
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7227895 |
System and method for generating decoded digital video image data
Methods and systems are disclosed for decoding image data including I-picture, P-picture, and B-picture encoded data. A method includes receiving encoded image data and selectively performing a...
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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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7212570 |
Video converter and computer program for executing said video converter
A video converter for converting a coding format of a great deal of video contents has three kinds of conversion modes including a conversion mode for performing conversion in two steps in...
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7170941 |
Temporal compression
The present invention discloses a temporal compressor and decompressor for sequences of images. The compressor includes an interface for receiving the sequence of images. A spatial compressor...
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7161983 |
Adaptive motion vector field coding
A method for motion compensated encoding of video data. The method comprises the steps of:
generating a motion vector field of video pixels of a current frame to be coded based on a...
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7149251 |
Apparatus, and associated method, for forming a compressed motion vector field utilizing predictive motion coding
Apparatus, and an associated method, motion compensates coding of video sequences. Motion compensated prediction is utilized in the representation of motion vector fields. Reduced numbers of bits...
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7149250 |
Video encoding method
The present invention relates to an encoding method processing video object planes (VOPs) of I, P or B type and including a dynamic allocation of said VOPs. According to said method, for each input...
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7113543 |
Video encoding
Motion compensation as for video compression with motion estimation with either frame mode or field mode by initial prediction of motion mode and when prediction error is small enough truncate...
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7095444 |
Method and apparatus for generating, distributing and reconstructing deconstructed video
A method and apparatus for deconstructing video into a hierarchical structure, distributing the deconstructed video and reconstructing the deconstructed video to form a video signal having...
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7031387 |
B picture mode determining method and apparatus in video coding system
A B picture mode determining method and apparatus in a video coding system includes the steps of: setting sum of absolute difference (SAD) initial values of a 4×4 and 16×16 intra prediction mode,...
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7003035 |
Video coding methods and apparatuses
Video coding methods and apparatuses are provided that make use of various models and/or modes to significantly improve coding efficiency especially for high/complex motion sequences. The methods...
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6970508 |
Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks
It is possible to produce a decoded image with a high image quality from data of the lowermost hierarchy obtained during hierarchical coding operation. An image of a first hierarchy equal to an...
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6970506 |
Systems and methods for reducing frame rates in a video data stream
The present invention is related to video encoding. In an embodiment, a sequence of frames is received. For each frame in at least a portion of the sequence of frames, a corresponding mean of...
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6968007 |
Method and device for scalable video transcoding
The invention relates to a scalable video transcoding method for transcoding an input video signal ( 103 ) coded according to MPEG-2 video standard, resulting in four transcoding architectures....
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6937656 |
Method and apparatus for image coding
A method of coding a moving picture includes dividing a picture into a plurality of blocks, and selectively performing one of global motion compensation processing and local motion compensation...
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6931065 |
Apparatus and method for motion detection of image in digital video recording system using MPEG video compression
Provided are apparatus and method for precise motion detection in a digital video recording (DVR) system using a Moving Picture Expert Group (MPEG) video compression technique and a...
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6925125 |
Enhanced aperture problem solving method using displaced center quadtree adaptive partitioning
The disclosed method provides a new resolution of the aperture problem, which is one of the basic problems present in motion estimation technology. The method constitutes a resolution of this...
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6920178 |
Method switching the video component(s) of a first digital, audio-visual program onto the video components of a second audio-visual digital, video-audio program to compensate their phase-shift
The video component(s) of a digital audio-visual first program are switched onto the video components of a second digital, audio-visual program by (1) switching onto the video component of the...
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6907079 |
Deblocking filter conditioned on pixel brightness
An encoder, decoder, and corresponding method are disclosed for encoding pixel data as a plurality of block transform coefficients and decoding encoded block transform coefficients to provide...
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6907073 |
Tweening-based codec for scaleable encoders and decoders with varying motion computation capability
A scaleable video encoder has one or more encoding modes in which at least some, and possibly all, of the motion information used during motion-based predictive encoding of a video stream is...
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6898243 |
Apparatus and methods for down-conversion video de-interlacing
A video converter provides for converting an interlaced video datastream to a de-interlaced form suitable for progressive-input coding. Conversion is conducted in accordance with determined motion...
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6885704 |
Coding apparatus and coding method of time-varying image signal
A picture counter 205 counts and outputs the number of pictures input from the beginning of communication. A coding controlling section 206 outputs coding scheme information for controlling a...
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6862318 |
Image data encoding device
Introduced in an image data encoding device is a logic-memory combined chip in which a memory device and a signal processing device are combined. A logic part and a memory part can be connected to...
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6847683 |
Video coding method and corresponding encoder
The invention, provided for an implementation, in a video encoder with base layer coding means and enhancement layer coding means, relates to a method of coding the video objects (VOs) of a...
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6807231 |
Multi-hypothesis motion-compensated video image predictor
Video images are communicated between two stations using a method for predicting motion uses up to N frames of the video data, where N is a positive integer and each frame is represented as a...
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6788227 |
Apparatus for integrated cascade encoding
Two encoders are used in cascade wherein one encoder functions as a preprocessor for the other by collecting statistics concerning partially processed input data. The statistics thus derived are...
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6775326 |
Moving image estimating system
To achieve an encoding system including a highly efficient prediction performed in response to the content of a scene, a significance, and a motion characteristic of a moving picture and the like,...
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6765964 |
System and method for intracoding video data
A video system for coding a stream of video data that includes a stream of video frames divides each video frame into a matrix of a plurality of subblocks, wherein each subblock includes a...
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6754272 |
Picture signal processing method and apparatus, picture signal recording method and apparatus and recording medium
A picture signal processing method and apparatus, a picture signal recording method and apparatus and a recording medium, wherein an interval still picture is realized. To this end, a controller...
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6731685 |
Method and apparatus for determining a bit rate need parameter in a statistical multiplexer
A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for...
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6721361 |
Video processing system including advanced scene break detection methods for fades, dissolves and flashes
The invention provides a method and apparatus for detecting a scene transition in digitized video data. The method includes determining if a gradual transition is detected in the video data that...
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6707853 |
Interface for performing motion compensation
According to one embodiment, a circuit for generating motion compensated video includes a means for translating a macroblock into one or more motion compensation commands having associated...
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6693964 |
Methods and arrangements for compressing image based rendering data using multiple reference frame prediction techniques that support just-in-time rendering of an image
Methods and arrangements are provided for compressing image-based rendering (IBR) data, storing and transporting the compressed IBR data, and subsequently providing selective just-in-time (JIT)...
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6687297 |
Video encoding
To efficiently use space capacity and to provide accurate motion vectors for P-pictures, a two-pass search in a P-coding mode of an MPEG encoder is run so that the second pass refines the precision...
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6671319 |
Methods and apparatus for motion estimation using neighboring macroblocks
Methods and systems for obtaining a motion vector between two frames of video image data are disclosed. Specifically, methods and systems of the present invention may be used to estimate a motion...
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6668019 |
Reducing the memory required for decompression by storing compressed information using DCT based techniques
A method of reducing the memory required for decompression of a compressed frame by storing frames in a compressed format using DCT compression and decoders for implementing such a method are...
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6654419 |
Block-based, adaptive, lossless video coder
Method and system for compression coding of a digitally represented video image. The video image is expressed as one or more data blocks in two or more frames, each block having a sequence of...
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6636642 |
Image coding device, image decoding device, image coding/decoding device and image coding/decoding method
To realize image coding/decoding device that can compress an input multivalued image with high compression efficiency, the following measures are taken. First and second predictors predict the...
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6625215 |
Methods and apparatus for context-based inter/intra coding mode selection
A technique is provided for use in a video processing system for selecting between an inter-frame coding mode and an intra-frame coding mode when processing a current portion of a video sequence....
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