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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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7386048 |
Methods and systems for image intra-prediction mode organization
Methods and systems for efficient organization and communication of pixel intra-prediction modes.
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7376186 |
Motion estimation with weighting prediction
A video encoder and decoder are provided for encoding and decoding video signal data for an image block and a particular reference picture index to predict the image block, where the encoder...
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7369612 |
Video decoder and method for using the same
A video decoder and a method for using the same are provided. Selected frames of a video stream are trimmed during the decoding of the video stream. The video stream is received. The video stream...
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7362806 |
Object activity modeling method
An object activity modeling method which can efficiently model complex objects such as a human body is provided. The object activity modeling method includes the steps of (a) obtaining an optical...
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7349474 |
Method and apparatus for variable bit-rate control in video encoding systems and computer program product therefor
A method for controlling the bit-rate of a bitstream of encoded video signals at a variable bitrate, the bitstream being generated by compressing a video sequence of moving pictures, wherein each...
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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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RE40080 |
Video coding method and decoding method and devices thereof
A new predictive coding is used to increase the temporal frame rate and coding efficiency without introducing excessive delay. Currently the motion vector for the blocks in the bi-directionally...
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7310371 |
Method and/or apparatus for reducing the complexity of H.264 B-frame encoding using selective reconstruction
An apparatus comprising an output circuit, a first processing circuit and a second processing circuit. The output circuit may be configured to generate an output data stream in response to (i) a...
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7308029 |
Method and apparatus for implementing B-picture scene changes
A method and apparatus are provided for implementing B-picture scene changes. A prediction stage predicts a B-picture scene change based upon a sequence of statistical information in an encoder...
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7305033 |
Method of encoding and decoding motion picture, motion picture encoding device and motion picture decoding device
The present invention discloses a method of encoding and decoding motion picture, a motion picture encoding device and a motion picture decoding device, which enables high-efficiency coding capable...
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7295612 |
Determining the number of unidirectional and bidirectional motion compensated frames to be encoded for a video sequence and detecting scene cuts in the video sequence
Methods for processing a set of successive video frames in two passes to determine the number of bidirectional (B) and unidirectional (P) motion compensated frames to be encoded in a video coding...
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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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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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7272183 |
Image processing device, method and storage medium thereof
An information collecting unit reads encoded moving image data from an information storing unit, decodes part of the moving image data, extracts the number and the magnitudes of motion vectors, the...
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7266150 |
Interpolation of video compression frames
A method, system, and computer programs for improving the image quality of one or more predicted frames in a video image compression system, where each frame comprises a plurality of pixels. A...
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7263127 |
Method and apparatus for simplifying frame-based motion estimation
A method for performing motion estimation on a received stream of data comprising a plurality of bidirectionally interpolated frames (B-frame) and a plurality of anchor frames by unidirectionally...
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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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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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7248631 |
Method for reducing processing power requirements of a video decoder
A system and method dynamically process video data received by a video decoder by determining a throttling amount, at a decoder throttling device, based on a measure of computational processing...
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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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7230982 |
Decision feedback equalizer for minimum and maximum phase channels
This invention describes an apparatus and method to improve the performance of a decision feedback equalizer (DFE) for time-varying multi-path channels. For minimum-phase channels, the equalization...
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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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7173970 |
Methods and apparatus for decoding and displaying multiple digital images in parallel
Methods and apparatus for implementing a reduced cost HDTV/SDTV video decoder are disclosed. The described joint video decoder is capable of decoding HDTV pictures at approximately the resolution...
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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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7149248 |
Command packet system and method supporting improved trick mode performance in video decoding systems
A system, method, and apparatus for reducing the video decoder processing requirements are presented herein. During a rewind operation, a reference picture for a group of pictures is decoded and...
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7133455 |
Providing error resilience and concealment for video data
An apparatus for providing error concealment, error resilience, and/or error resilience modification. The apparatus includes a first block to process a P-type frame in a video bitstream using a...
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7130350 |
Method and system for encoding and decoding data in a video stream
In a block-based video stream, a first bit representing video data at a predefined location is identified. The video data at the first bit is replaced with a bit of non-video data prior to being...
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7106798 |
Smooth scanning presenter
Described herein is a technology for the presentation digital video. One implementation, described herein, smoothly presents variable-speed scanning of a compressed digital video stream—for...
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7092576 |
Bitplane coding for macroblock field/frame coding type information
In one aspect, for a first interlaced video frame in a video sequence, a decoder decodes a bitplane signaled at frame layer for the first interlaced video frame. The bitplane represents field/frame...
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7092443 |
Process and device for video coding using the MPEG4 standard
The device is characterized in that it comprises means for preventing the “skipped macroblock” mode of coding of a macroblock of an image of P type on the basis of a correlation item measuring...
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7068722 |
Content adaptive video processor using motion compensation
A system and method for providing a method for reducing artifacts in a video sequence of image frames is disclosed. The method and system include classifying scenes in the sequence of image frames,...
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7058130 |
Scene change detection
In one embodiment, a scene change detection component of a video encoder uses motion vectors to determine whether a scene change occurs in a video sequence. The scene change detection component...
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7054366 |
Systems and methods for MPEG subsample decoding
A decoder decimates MPEG or other video data by subsampling the output of an inverse discrete cosine transform (IDCT) module. The decimation process is useful for reducing the volume of data that...
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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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7027509 |
Hierarchical hybrid shot change detection method for MPEG-compressed video
The present invention relates to a hierarchical hybrid shot change detection method in MPEG-compressed video circumstances, wherein the method according to the present invention comprises:...
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7020199 |
Method and apparatus for processing MPEG data
A data proccssing device, for example, an MPEG decoder, comprises a bus system [BUS] over which a transmitter circuit, for example a variable length decoder circuit [VLD], can transfer a series of...
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7020198 |
Rate control for an MPEG transcoder without a priori knowledge picture type
A rate control system suitable for use with a digital video transcoder, such as one conforming to the MPEG standard. The proposed rate control system starts coding with any reasonable set of...
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7016414 |
Method and system for skipping decoding of overlaid areas of video
A system and method that reduces computational complexity of a decoder by identifying a skippable region in an overlaid area. The invention provides a system for processing encoded video data,...
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7016412 |
System and method for dynamic adaptive decoding of scalable video to balance CPU load
There is disclosed an apparatus for controlling the processing load of a scalable video decoder that decodes an incoming scalable video bit stream and generates a baseband video signal. The...
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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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6996174 |
MPEG video decoder with integrated scaling and display functions
A digital video decoder system, method and article of manufacture are provided having integrated scaling capabilities for presentation of video in full size or a predetermined reduced size, while...
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6990147 |
Generating a non-progressive dummy bidirectional predictive picture
The invention concerns a method ( 200 ) and system ( 100 ) for generating a dummy bidirectional predictive picture which can be repeated during display with substantially no vibration in which the...
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6987807 |
Frame compression using differential codes and an escape code
Digital video data streams that conform to standards such as the ITU-T H.263 and MPEG-4 ISO/IEC standards are compressed to reduce the amount of memory needed to store these streams. Information...
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6975681 |
Method and apparatus for coding moving pictures
A moving picture coding method and apparatus is provided that performs motion compensation interframe predictive coding, thus improving the compression efficiency. The magnitude of a forward motion...
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6973129 |
Overlapped field detecting apparatus capable of detecting non-overlapped fields mostly overlapped
In an overlapped field detecting apparatus, a delay unit delays a video signal, and a subtracter calculates a difference between the video signal and an output signal of the delay unit on a...
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6963614 |
Video frame synthesis
A method comprising selecting a number of blocks of a frame pair and synthesizing an interpolated frame based on those selected blocks of the frame pair. Additionally, the synthesis of the...
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6963605 |
Method for estimating the motion between two digital images with management of mesh overturning and corresponding coding method
The invention relates to a method for estimating the motion between two digital images and to the use of this method for coding images. The aim of the method is to eliminate the disturbances caused...
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