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6954497 |
METHOD FOR PROTECTION OF DATA DECODING ACCORDING TO TRANSFERRED MEDIUM PROTECTION DATA, FIRST AND SECOND APPARATUS PROTECTION DATA AND A FILM CLASSIFICATION SYSTEM, TO DETERMINE WHETHER MAIN DATA ARE DECODED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL
In a reproduction apparatus, for reproducing an original signal conveyed as main data by a data medium such as a recording disk or broadcasting system, with medium protection data which are...
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6950466 |
Apparatus for receiving moving pictures
A memory reducing device in an apparatus for receiving moving pictures is applied to the fields such as a digital television receiver, a digital video conference system and the like. The memory...
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6950468 |
Image formation conversion apparatus and image information conversion method
The invention provides an image information conversion apparatus and method by which picture quality deterioration caused by setting of an initial value can be prevented when code amount control in...
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6950443 |
Encoding apparatus, encoding method, and recording medium storing encoding processing program
In an encoding apparatus or method, variable-length encoding data is packetized by a packetizing format in which a header of a packet has an area for indicating a packet length and the range of...
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6944314 |
DIGITAL INFORMATION EMBEDDING DEVICE EMBEDDING DIGITAL WATERMARK INFORMATION IN EXACT DIGITAL CONTENT, COMPUTER-READABLE RECORDING MEDIUM HAVING DIGITAL INFORMATION EMBEDDING PROGRAM RECORDED THEREIN, AND METHOD OF EMBEDDING DIGITAL INFORMATION
To dynamically embed information with a digital content taken into account a digital information embedding device includes an input block receiving an image, a feature value parsing block detecting...
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6940901 |
Apparatus and method for information processing
When the bit rate of an input transport stream is reduced to a lower bit rate S by reencoding, the bit rate Ro of streams other than video is set to be the same as the bit rate of the streams other...
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6940907 |
Method for motion estimation
A method for motion estimation. The method includes a) dividing a search area into sub-areas with different densities, b) deriving distortions of a currently selected macro-block and its neighbors...
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6940909 |
Video decoding during I-frame decode at resolution change
A method of buffering a video signal is disclosed. The method generally includes the steps of (A) storing a plurality of pictures decoded from the video signal having a first resolution in a memory...
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6937661 |
Video encoder and/or decoder
A video codec ( 1 ) is provided in which a frame sync (FS) in base-band video data is delayed a predetermined time. A processor ( 14 ) is provided to make interrupt in a timing that is based on the...
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6937652 |
Frame compression using radix approximation
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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6934330 |
Image processing apparatus
A quantizer scale value is detected with high accuracy. The number of effective samples of results of which DCT coefficients are quantized with each of quantizer scale values Q=1 to 31 is counted....
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6934335 |
Video encoder with embedded scene change and 3:2 pull-down detections
In one embodiment, a video encoder having a first and second phase of motion estimation, and scene change and 3:2 pull-down detection components is provided. In another embodiment, the first phase...
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6931660 |
Interactive television system and method for simultaneous transmission and rendering of multiple MPEG-encoded video streams
A system and method for the simultaneous transmission and rendition of multiple MPEG-encoded digital video signal streams in an interactive television application are disclosed. Simultaneous...
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6931068 |
Three-dimensional wavelet-based scalable video compression
A method of encoding an input video signal for communication over a computer network, the method comprising the steps of: i) applying a three-dimensional wavelet-based temporal and spatial...
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6925126 |
Dynamic complexity prediction and regulation of MPEG2 decoding in a media processor
A method and system of regulating the computation load of an MPEG decoder in a video processing system are provided. The video processing system processes the header information of a compressed...
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6925117 |
Data transmission apparatus, method and program, data reception apparatus and method, and data transmission and reception system, using differential data
A data transmission apparatus and the like are provided which, in sending data of a large capacity such as still image data, can significantly reduce an amount of transmission data while...
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6922441 |
Method for performing integer divides without propagation of truncation error
A method and structure for performing a sequence of integer divides without propagation of truncation error. During encoding and decoding of video signals, a buffer is dynamically filled with...
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6917648 |
Encoder and decoder for moving picture
A selection unit selects ‘0’ for the first through the (N−1)th frames, and selects a predicted image for the subsequent frames. Thus, an intra-frame coding process is performed on the first...
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6914938 |
Interlaced video motion estimation
A method for determining motion vectors in an interlaced video coding system for coding images comprising interlaced odd and even field. The method ( 30 ) includes selecting ( 32 ) a current odd...
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6915018 |
Compressed moving picture re-encoding apparatus and compressed moving picture re-encoding method
To reduce a processing delay when re-encoding compressed moving pictures, and provide a compressed moving picture re-encoding apparatus with higher picture quality. Complexity measure computing...
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6909745 |
Content adaptive video encoder
A system for content adaptive encoding and decoding video is disclosed. The system comprises modules for segmenting video content into segments based on predefined classifications or models....
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6909743 |
Method for generating and processing transition streams
A method for generating a transition stream and processing video, audio or other data within the transition stream using, respectively, pixel domain processing, audio domain processing or other...
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6909744 |
Processor architecture for compression and decompression of video and images
A video encoder/decoder includes a vector pipeline unit and is configured only once by a processor to encode/decode data in accordance with any one of the JPEG, MPEG1, MPEG2 or MPEG4, H.261 or...
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6907067 |
Method and terminal equipment for integrating audiovisual coded information into a frame structured transmission standard
To integrate audiovisual, encoded information into one predefined, frame-structured transmission standard, individual data streams are multiplexed into one or a plurality of data channels of the...
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6907068 |
Image compressing coding apparatus and method for detecting a top position of an image in a buffer overflow
To provide an image compression coding apparatus and method capable of minimizing a deterioration in picture quality which is caused on a reproduced image during an overflow of an output buffer. A...
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6904090 |
METHOD FOR PROTECTION OF DATA REPRODUCTION ACCORDING TO MEDIUM PROTECTION DATA, POSITION INFORMATION AND FIRST AND SECOND APPARATUS PROTECTION DATA TO DETERMINE A RANGE OF PROTECTION FOR MAIN DATA AT SPECIFIED POSITIONS AND WHETHER SAID MAIN DATA ARE REPRODUCED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL
In a reproduction apparatus, for reproducing an original signal conveyed as main data by a data medium such as a recording disk or broadcasting system, with medium protection data which are...
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6904093 |
Horizontal/vertical scanning frequency converting apparatus in MPEG decoding block
A video signal processing apparatus, and more particularly, a horizontal/vertical scanning frequency changing apparatus in an MPEG decoding block for changing a method of scanning a decoded signal...
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6901110 |
Systems and methods for tracking objects in video sequences
A method for tracking one or multiple objects from an input video sequence allows a user to select one or more regions that contain the object(s) of interest in the first and the last frame of...
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6898244 |
Movement vector generating apparatus and method and image encoding apparatus and method
A movement vector generating apparatus generates a movement vector for a movement compensation by means of an inter-frame prediction, when encoding a preset image information including an image of...
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6898240 |
Predictive edge extension into uncovered regions
One embodiment comprises a method for image processing. The method includes identifying an uncovered region in an image, determining at least one trivalent point, and extrapolating from the...
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6895047 |
Method of encoding moving picture data
Pixel data in the same position within the frames is fetched in order of the time series. At the last frame image, the position to fetch pixel image is shifted to that of a neighboring piece of...
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6895048 |
Adaptive encoding of a sequence of still frames or partially still frames within motion video
Method, system and computer program product are provided for adaptively encoding in hardware, software or a combination thereof a series of still or partially still pictures using motion video...
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6888888 |
Simultaneous tuning of multiple channels using intermediate frequency sub-sampling
Methods and systems for processing a single sub-channel that includes two or more combined channels. Using intermediate frequency sub-sampling, two or more channels from a broad band signal are...
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6882361 |
Imager linked with image processing station
A digital video camera is coupled with an image processing station by a tether that has a bandwidth. The processing station has a memory with a program that executes instructions. When application...
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6879635 |
Method of decoding time information of video image
A method for decoding time data comprising decoding an encoded bit stream in units of one frame to generate decoded video data and a plurality of decoded header information items for each frame,...
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6870883 |
Parallel encoding and decoding processor system and method
Encoding and decoding systems for MPEG encoding and decoding at a high speed using a parallel processing system, wherein macroblocks to be processed are designated for first to third processors...
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6865227 |
Error concealment of video data using motion vector data recovery
A method for concealing errors in video data is disclosed. The method includes decoding a first set of motion vectors and estimating a second set of remaining motion vectors in the corrupted video...
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6865225 |
Image signal quantizing device and its method
A residue code amount is calculated. A threshold act_thrsh corresponding to the residue code amount is obtained. A variable mb that designates a macro block is initialized to zero. The variable mb...
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6859496 |
Adaptively encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel
A control strategy is provided for dynamically encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel. The control strategy allows individual encode...
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6859493 |
Apparatus and method for the recovery of compression constants in the encoded domain
The system and method of the present invention provides an innovative technique and efficient hardware structure for recovering lost or damaged (lost/damaged) compression constants in the encoded...
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6850576 |
Method and apparatus for reproducing timing, and a demodulating apparatus that uses the method and apparatus for reproducing timing
A base band signal is sampled, based on an asynchronous sampling clocking, to output two sampled data series. A transmission side complex symbol frequency generator generates a complex transmission...
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6847680 |
Method for detecting talking heads in a compressed video
A method identifies a talking head or principal cast in a compressed video by first segmenting the video into shots. Motion activity descriptors are extracted from each of the shots, and combined...
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6847684 |
Zero-block encoding
In a multimedia compression system such as is used in compressing data in a video stream, “zero blocks” from an MPEG block array are identified prior to encoding and subjecting blocks to the...
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6845128 |
Video-emphasis encoding apparatus and decoding apparatus and method of video-emphasis encoding and decoding
An emphasis processing is applied to an input video signal to obtain a video bitstream. An emphasis level is set to the input video signal in accordance with at least one factor among control data...
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6845127 |
Real time remote monitoring system and method using ADSL modem in reverse direction
Disclosed are a real time remote monitoring system and a method therefore using an ADSL in a reverse direction. The real time remote monitoring system performs a remote monitoring in real time by...
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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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6831946 |
Device and method for coding image
Device and method for coding an image for compressing a digital video signal, including the steps of (1) transforming a spatial domain of the video signal into frequency domain, and dividing the...
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6829303 |
Methods and apparatus for decoding images using dedicated hardware circuitry and a programmable processor
Video decoder methods and apparatus are described. In accordance with the invention, hardware decoder circuitry, e.g., intra-coded image decoding circuitry and motion vector reconstruction...
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6829373 |
Automatic setting of optimal search window dimensions for motion estimation
A method of estimating the motion field of a digital picture sequence includes subdividing a current picture to examine in an integer number of macroblocks, for each macroblock of the current...
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6819714 |
Video encoding apparatus that adjusts code amount by skipping encoding of image data
A comparing/judging unit 125 of a video encoding apparatus compares, prior to encoding each image data, the predictive amount of codes accumulated in a receiver buffer of a decoding apparatus...
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