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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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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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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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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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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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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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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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6940910 |
Method of detecting dissolve/fade in MPEG-compressed video environment
There is provided a method of detecting dissolve/fade in an MPEG-compressed video environment, which includes the steps of: detecting a candidate sequence that is presumed to use a dissolve/fade...
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6937658 |
Information processing apparatus, information processing method, and distribution media
An information processing apparatus capable of accurately detecting commercials included in a television broadcast. A commercial candidate section detector detects a commercial candidate section...
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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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6917649 |
Method of encoding video signals
The present invention relates to a method of encoding, which receives an input video signal (IS) for providing a compressed video data signal (CS). Said method comprises the steps of segmentation...
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6914937 |
Image control apparatus
An image control apparatus is capable of coding an image signal with increased efficiency for improved image quality. The image control apparatus has a comparison processing unit for carrying out...
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6912254 |
DECODING SYSTEM AVAILABLE FOR COMPRESSED DATA STREAMS FOR CONCURRENTLY REPRODUCING STABLE PICTURES METHOD FOR DECODING COMPRESSED DATA STREAMS AND INFORMATION STORAGE MEDIUM FOR STORING PROGRAMMED INSTRUCTIONS REPRESENTATIVE OF THE METHOD
An MPEG decoding system concurrently reproduces three pictures on a screen of a display unit on the basis of pieces of video data information representative of different kinds of pictures...
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6907069 |
Picture coding apparatus, picture coding method, and recording medium having picture coding program recorded thereon
A plurality of picture frames is arranged as one group according to correlation between picture frames in a picture sequence. Then, a coding mode corresponding to each of the picture frames of the...
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6900846 |
Format converter using bi-directional motion vector and method thereof
A format converter which performs frame rate conversion and de-interlacing using a bi-directional motion vector and a method thereof are provided. The method includes the steps of (a) estimating a...
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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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6850567 |
Embedding supplemental data in a digital video signal
An MPEG-encoded video signal includes groups of pictures (GOPs), each GOP having an intraframe coded (I) picture and a series of predictively encoded (P) pictures and bidirectionally predictively...
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6850571 |
Systems and methods for MPEG subsample decoding
Decimating 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 must be...
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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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6831949 |
Switching compressed video bitstreams
An MPEG bitstream is switched in the video domain in between a decoder and recoder pair which remain continuously in operation but which are transparent through re-use in the recoder of coding...
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6823010 |
Method for switching a first digital audio-visual program video component(s) on a second digital audio-visual program video component(s)
First digital audio-visual program video component(s) are switched on a second digital audio-visual program video component(s) by switching on the beginning of the first set of images including an...
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6810080 |
Method and apparatus for decoding video data
A video decoder for decoding video pictures encoded according to the MPEG-2 standard, having reduced memory requirements, including a memory for storing means for storing a plurality of anchor...
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6801574 |
Apparatus of layered picture coding, apparatus of picture decoding, methods of picture decoding, apparatus of recording for digital broadcasting signal, and apparatus of picture and audio decoding
A video signal layering-encoding system has at least either a frequency distribution unit to judge a frequency distribution in an input video signal or a motion judgment unit to judge the motion of...
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6798835 |
Apparatus and method of switching moving-picture bitstream
Moving-picture bitstreams are switched at a predetermined switching timing to form a successive moving-picture bitstream. Each bitstream carries first pictures to be used as reference pictures for...
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6795503 |
Video coding method and apparatus that predicts macroblock code length
As the video signals of macroblocks are coded, they are stored in a buffer. When the total code length of the stored macroblocks exceeds a predetermined value, all but the most recently coded...
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6792476 |
Storage medium, and method and apparatus for information processing
An information processing apparatus, disposed between a controlling portion and hardware, for performing a process corresponding to a program that contains capsulated process portions for...
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6785331 |
Predictive encoding and decoding methods of video data
Video data predictive encoding methods using the two kinds of prediction modes, the global and local motion compensation modes, are provided, by which unnecessary MCSEL is reduced as much as...
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6768774 |
Video and graphics system with video scaling
A video and graphics system has a reduced memory mode in which video images are reduced in half in horizontal direction during decoding. The video and graphics system includes a video decoder for...
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