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7227898 |
Digital signal conversion method and digital signal conversion device
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section 11 , then decoded by a variable-length...
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7227589 |
Method and apparatus for video decoding on a multiprocessor system
A method and apparatus for decoding compressed video. The method includes reading a stream of compressed video into a memory. The video includes multiple pictures, with each picture having one or...
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7224730 |
Systems and methods for decoding redundant motion vectors in compressed video bitstreams
The invention is related to methods and apparatus that decode robustly encoded video bitstreams. One embodiment of a decoder can advantageously reconstruct a predictive-coded video object plane...
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7224733 |
Interpolation filtering method for accurate sub-pixel motion assessment
To generate an improved image signal when estimating motion, a motion vector is first determined with pel accuracy, and a two-step interpolation filtering is subsequently carried out with sub-pel...
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7224735 |
Adaptive background image updating
A method compares a background image to input images to determine a similarity scores λ for each input image. Then, the background image is updated only if the similarity score for a particular...
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7221709 |
Information processing apparatus and method, and program storage medium
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section 11 , then decoded by a variable-length...
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7221706 |
Systems and methods for performing bit rate allocation for a video data stream
The present invention is related to video encoding. In an embodiment, a bit budget is calculated for a first scene. In addition, bit budgets for corresponding frames, including at least a first...
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7215711 |
Broadcasting computer files using television
A computer file stored on a sender's disk ( 102 ) is converted into a data packet ( 112 ) or a sequence of packets. Packets are converted into images that are written to a videocassette ( 118 ) or...
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7215707 |
Optimal scanning method for transform coefficients in coding/decoding of image and video
An optimal scanning method for coding/decoding an image signal is provided. In a method of coding an image signal through a discrete cosine transform, at least one is selected among a plurality of...
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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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7212574 |
Digital production services architecture
Methods, units, systems, architectures and/or storage media for video and/or audio processing. An exemplary architecture includes one or more layers selected from, for example, service and/or...
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7203234 |
Method of directional filtering for post-processing compressed video
A method of post-processing decompressed images includes identification of the direction of an image edge in a pixel block of the image and filtering applied along the boundary of the block in a...
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7203236 |
Moving picture reproducing device and method of reproducing a moving picture
A moving picture reproducing device includes a compressed data buffer, a display size obtaining unit, a resolution selecting unit, four kinds of resolution decoding units, and a frame data buffer....
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7194035 |
Method and apparatus for improved coding mode selection
Some embodiments provide a method of performing mode selection in a video compression and encoding system. The method encodes with several encoding modes from a set of encoding modes. The method...
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7180944 |
Low-complexity spatial downscaling video transcoder and method thereof
A low-complexity spatial downscaling video transcoder and method thereof are disclosed. The transcoder comprises a decoder having a reduced DCT-MC unit, a DCT-domain downscaling unit, and an...
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7177608 |
Personal spectrum recorder
A system and method is disclosed for a personal radio recorder. The personal radio recorder allows for random access of communication signals by identifying a channel and time. The personal radio...
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7177355 |
Method for representing encoding upon coding information
A method of representing encoding or non-encoding by extending a video information field of a block when coding video information, is provided. The method of representing encoding or non-encoding...
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7173948 |
Optical transmission/reception system for various video signals
A special-code encoding circuit generates a first special code to be added to a video signal and a second special code to replace a synchronous signal. A multiplex circuit multiplexes the video...
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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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7167520 |
Transcoder
A transcoder for resizing video data and outputting the resized video data to a reproduction apparatus. The reproduction apparatus reproduces the resized video data by repeating a display period...
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7164717 |
Systems and methods for detecting scene changes in a video data stream
The present invention is related to video encoding. In an embodiment, a first root mean squared (RMS) value is calculated for a first frame relative to a second frame, and a second frame relative...
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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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7161982 |
Device and method for motion video encoding reducing image degradation in data transmission without deteriorating coding efficiency
A code volume control section refers to an input image and a reference image stored in a frame memory and thereby sets a quantization step for each block so that the volume of coded data generated...
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7158666 |
Method and apparatus for including virtual ads in video presentations
A system for presenting a virtual advertisement or other virtual content in a sequences of frames of a video presentation utilizes data identifying a candidate region in the sequence of frames, a...
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7151568 |
Displacement sensor
A displacement sensor comprising an imaging unit and an image processing unit. The imaging unit comprises a two dimensional imaging device and a drive control unit. The two dimensional imaging...
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7151801 |
Method and system for enhancing data quality
The quality (e.g., resolution) of image data, video data, and sound data representing a scene or signal is enhanced by a quality enhancement function trained on high quality and low quality...
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7149249 |
Color video codec method and system
In one aspect of a preferred embodiment, the present invention comprises a system for video compression comprising a video preprocessor; a predictor configured to receive video data from the...
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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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7145946 |
MPEG video drift reduction
A drift reduction method and apparatus. Drift reduction is effected in an MPEG video transcoder by decoding dropped out pixels to form a drift reference frame. The quantization indices in the...
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7145952 |
Dynamic selection of field/frame-based MPEG video encoding
A discrete cosine transform (DCT) level enhancement to Motion Picture Experts Group (MPEG) video encoding is described that results in a more concise bitstream than MPEG encoding without the...
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7142604 |
Method and apparatus for the compression and/or transport and/or decompression of a digital signal
A method is described for compressing and/or transporting and/or decompressing a digital signal. The most significant bits of a sample of the digital signal are compressed and transported as a...
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7143432 |
System for transforming streaming video data
According to one embodiment, a circuit configured to form an output video stream includes a resolution modification circuit configured to receive a plurality of video frames from a frame buffer,...
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7139317 |
Segment-based encoding system using exposed area filling performed by an encoder and a decoder
An encoding system encodes and decodes video data using an exposed area fill processor. A nonkey frame is encoded as a set of kinetic information relating segments of a reference frame to the...
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7136415 |
Method and apparatus for multiplexing multi-view three-dimensional moving picture
An apparatus and method for multiplexing a multi-view three-dimensional moving picture according to a user's request is disclosed. The apparatus multiplexes a multi-view three-dimensional moving...
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7130351 |
Storage reduction during compression
Decompressing compressed video information using relatively less temporary storage is disclosed. A compressed bit stream of video information including a compressed portion is received. A reverse...
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7126993 |
Information processing apparatus, information processing method and recording medium
Encoding parameters of picture and higher layers of importance to a number of applications, and encoding parameters of slice and lower layers of no importance to all applications are converted into...
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7126991 |
Method for programmable motion estimation in a SIMD processor
The present invention provides a 16×16-sliding window using vector register file with zero overhead for horizontal or vertical shifts to incorporate motion estimation into SIMD vector processor...
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7127520 |
Method and system for transforming input data streams
The present system and method transforms an input data stream in a first data format of a plurality of first data formats to an output data stream in a second data format of a plurality of second...
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7116717 |
Method and system for scalable representation, storage, transmission and reconstruction of media streams
Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing...
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7116718 |
Unified memory address generation system and method for fetching and storing MPEG video data
A method and apparatus is provided for generating various binary addresses for use in decoding MPEG video data. One or more n-bit counters and mutiplexers are used to generate such binary...
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7114174 |
Computer program product for transforming streaming video data
According to one embodiment, a computer program product for a system including a processor includes a tangible memory including code that directs the processor to determine an output resolution for...
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7113546 |
System for handling compressed video data and method thereof
In a specific embodiment of the present invention, a system and method is disclosed having a plurality of modes for providing and/or receiving compressed video data at a frame buffer memory. The...
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7110452 |
Systems and methods for detecting scene changes in a video data stream
The present invention is related to video encoding. In an embodiment, a first root mean squared (RMS) value is calculated for a first frame relative to a second frame, and a second frame relative...
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7110457 |
System and method for time division multiplexing of asynchronous video and data signals
A system and method for time division multiplexing multiple lower bandwidth signals into a high bandwidth signals such as a high-definition television signal. The invention provides an integrated...
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7110450 |
Moving picture encoding apparatus
Deterioration of picture quality is prevented even in a transmission environment in which errors easily occur. A block significance determining section produces block significance for each block as...
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7106800 |
Image signal decoder selectively using frame/field processing
On input coded data, variable length decoding is performed, and motion vector information extracted. The motion vector information is transmitted to the threshold value determination section, and a...
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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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7103104 |
Embedding auxiliary data in an information signal
Disclosed is a method of embedding auxiliary data in an information signal, the signal samples of which are variable-length encoded, for example, an MPEG compressed video signal. Selected signal...
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7103669 |
Video communication method and system employing multiple state encoding and path diversity
Video communication over lossy packet networks such as the Internet is hampered by limited bandwidth and packet loss. The present invention provides a system for providing reliable video...
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7099392 |
Motion vector searching method using plural search areas
A motion vector searching system and method estimates a motion vector during image compression by acquiring a present image frame and at least one previous image frame, generating low-resolution...
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