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7359004 |
Bi-level and full-color video combination for video communication
Systems and methods for video communication are described. In one aspect, network bandwidth conditions are estimated. Bi-level or full-color video is then transmitted over the network at...
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7286165 |
Image pickup apparatus with a variable length encoder and data quantity monitor
This invention is a digital still camera having a coded data quantity monitoring circuit ( 9 ). This monitoring circuit ( 9 ) detects the quantity of data of an image signal compressed by a JPEG...
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7274389 |
Camera apparatus and image processing system with variable resolution
In an image capture apparatus, the data rate of image data output from the image capture device is changed by calculating a first data rate of the image data according to a first size of a variable...
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7266245 |
Image signal compression method and system
An image signal compression method and system. Without involving the current processing pixel, an encryption key and a decryption key are respectively and separately generated by a compression...
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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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7080169 |
Receiving data from interleaved multiple concurrent transactions in a FIFO memory having programmable buffer zones
A FIFO memory receives data transfer requests before data is stored in the FIFO memory. Multiple concurrent data transfers, delivered to the FIFO memory as interleaved multiple concurrent...
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7061863 |
Data communication system, data receiving terminal and data sending terminal
At a data receiving terminal, if a received-data of a particular time section received from a data sending terminal does not satisfy a predetermined accumulation quality as the result of...
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6950472 |
Coded data transfer control method and storage and reproduction system
In special reproduction, pictures whose display timings are set in advance are sequentially transferred to a decoder side. When a decode start instruction is outputted during the first transfer of...
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6947944 |
Database managing apparatus and database record retrieving apparatus
A database managing apparatus, which can immediately obtain desired data from a database. A database managing apparatus includes a CPU, an input/output device, a main memory and an external memory....
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6944339 |
MPEG-4 binary shape transmission
The present invention relates to a method of processing a digital video data signal (DVS) in order to insert binary shape data into the digital video data signal. Such a method is used for...
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6912584 |
Media coding for loss recovery with remotely predicted data units
An improved loss recovery method for coding streaming media classifies each data unit in the media stream as an independent data unit (I unit), a remotely predicted unit (R unit) or a predicted...
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6909746 |
Fast robust data compression method and system
A video compression process speeds the optimal choice of quantizers for compressing a data stream by setting up the optimization problem as a path-optimization problem in configuration space and...
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6903780 |
Method of expanding high-speed serial video data providing compatibility with a class of DVI receivers
A method of expanding data to a high-speed serial video link in such a way that it is invisible to existing receivers and such that auxiliary data, i.e. audio data, can be transmitted without any...
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6876386 |
Digital camera with downsampling and zoom processing and method of controlling operation of same
A CCD is driven so as to output a video signal at a rate of one line out of four up to an enlargement ratio of 2×. If the enlargement ratio of 2× is surpassed, the CCD is controlled so as to...
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6847681 |
Data processing system and method of data processing
A data processing system comprises a data compression decoder arranged in operation to decode first and second encoded data to produce first and second uncompressed data representative of first and...
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6795506 |
Methods and apparatus for efficient scheduling and multiplexing
Techniques and mechanisms are provided for scheduling and multiplexing compressed bitstreams. A compressed bitstream includes bit rate information describing the bit rate of video data. The bit...
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6618363 |
Method for adapting video packet generation and transmission rates to available resources in a communications network
A full service channel access protocol that supports the integrated transport of voice, video and data communications is provided by dividing a communication channel into a plurality of frames,...
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6606329 |
Device for demultiplexing coded data
The invention relates to a device for demultiplexing coded data corresponding to multimedia objects. The data is organized in a bitstream divided into individually accessible portions—for...
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6553153 |
Method and apparatus for reducing video data
A method and apparatus for reducing video data. The apparatus is composed of a plurality of reducers. A block is received, corresponding to a plurality of color space components and having a width...
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6552749 |
Method and apparatus for video motion compensation, reduction and color formatting
A method and apparatus for video motion compensation, power of two reduction and color format conversion is disclosed. The motion compensation engine performs the MPEG-2 functions of half pel...
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6529086 |
Encoding/decoding apparatus for orientation interpolator node data
An encoding/decoding apparatus and method for an orientation interplator node are provided. The encoding/decoding apparatus for an orientation interpolator node, which provides rotational...
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6490627 |
Method and apparatus that provides a scalable media delivery system
The present invention provides an apparatus and method for encoding, storing, transmitting and decoding multimedia information in the form of scalable, streamed digital data. A base stream...
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6360027 |
Multiple ultrasound image registration system, method and transducer
An ultrasonic imaging system includes an ultrasonic transducer having an image data array and a tracking array at each end of the image data array. The tracking arrays are oriented transversely to...
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6320590 |
Data bus compressing apparatus
A bus compression apparatus for compressing data is provided to suppress an EMI signal and to simplify a data bus structure. In the apparatus, the voltage levels of the digital output signals are...
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6295380 |
Object data processing apparatus, object data recording apparatus, data storage media, data structure for transmission
An object data processing apparatus for decoding N pieces of coded data (N=positive integer) obtained by compressively coding N pieces of object data which constitute individual data to be recorded...
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6295089 |
Unsampled hd MPEG video and half-pel motion compensation
A high definition digital video presentation system is provided with an interpolator which upsamples standard resolution MPEG pictures to higher resolution, preferably to double the number of...
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6275616 |
Method and apparatus for converting a high definition image to a relatively lower definition image using wavelet transforms
A method and an apparatus for converting a high definition image to a relatively lower definition image is provided. Image data encoded with a discrete cosine transform (DCT) is decoded using an...
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6263105 |
Image processing apparatus and method
A block including a subject pixel is formed from an original image. A first class information generation circuit calculates similarity between a decimated block that is obtained by decimating...
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6252989 |
Foveated image coding system and method for image bandwidth reduction
A foveated imaging system, which can be implemented on a general purpose computer and greatly reduces the transmission bandwidth of images has been developed. This system has demonstrated that...
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6088061 |
Video coding device and video decoding device
A video coding device capable of making coded data have a hierarchical structure, a specified area of each frame is selected. The position and the shape of the selected area are encoded, a pixel...
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6067383 |
Coding method, coding apparatus, wavelet transform apparatus, and wavelet reverse transform apparatus
A coding method comprises a hierarchical coding step of performing hierarchical coding for data to be coded to generate first and second code sequences, each comprising a plurality of code layers;...
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6067117 |
Image signal processor
An image signal processor wherein an image is divided spatially or on a time series basis into multiple units, and is encoded on the basis of the divided unit, in order for image transform...
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5949956 |
Variable bit rate video encoder, and video recorder, including code amount allocation
A degree of a difficulty of encoding a video signal in a given period of time is detected and converted with a specific transform characteristic to produce an allocated amount of codes. The video...
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5943469 |
Moving image processing method and apparatus
A moving image processing method and apparatus for efficient access to a large amount of moving image data. By the hierarchical structure of storage media for storing the compressed moving image...
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5940863 |
Apparatus for de-rotating and de-interleaving data including plural memory devices and plural modulo memory address generators
An apparatus for re-rotating and deinterleaving data includes (i) a first memory for storing D elements of rotated and interleaved data in D storage locations, (ii) a first addresser for addressing...
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5892545 |
Video compression with code allocation based on image detail
Video data compression apparatus in which successive images are encoded, comprises a data quantity allocator for allocating respective quantities of output encoded data for two or more...
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5872726 |
Memory control apparatus for compression and expansion of data
A memory control apparatus for compression or expansion of data includes an input end for receiving a signal indicating the data rate of the original data and a second signal indicating the data...
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5856847 |
High definition television coder/decoder where synchronization is achieved via the addition of absolute time reference signals at the coder
In the combination of a video signal coder and a video signal decoder, synchronization is achieved by the addition of absolute time reference signals at the coder. These time reference signals are...
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5847760 |
Method for managing video broadcast
The present invention provides a method and a system which provide a plurality of compressed presentations for each frame of the original video signal, each presentation provided according to a...
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5845011 |
Image processing apparatus for compressing image data according to an enlargement ratio of an enlarged image data
An image processing apparatus comprising a compressing section to compress image data, an enlarging section to electrically enlarge the image data, and a control section to control the compressing...
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5841473 |
Image sequence compression and decompression
A method and system for compressing and decompressing a sequence of image frames is disclosed. According to the disclosed embodiments of the invention, the compression process includes an...
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5793892 |
Method and system for compressing a pixel map signal using dynamic quantization
A pixel map signal is converted into a coefficient signal of block coefficient signals, each representing the pixels in a pixel map block (420) in a pixel map (410) with the coefficients in a...
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5790599 |
Data compression system using source representation
A data compression method and apparatus are disclosed including a receiver (14) for accepting a series of data at an input representing information to be transferred and a processor (18) for...
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5771073 |
Advanced television system using a different encoding technique for non-image areas
For a television signal having a succession of video frames, at least some of which have an image area and a non-image area, a frame having a non-image area is encoded by generating identification...
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5764293 |
Method of encoding video using master and slave encoders wherein bit budgets for frames to be encoded are based on encoded frames
A rate control algorithm for an MPEG-2 compliant encoder is described. The rate control algorithm has embodiments useful for constant bit rate and variable bit rate encoding. In particular, the...
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5754233 |
Compression encoding apparatus and recording apparatus for compressionencoded data
In an encoding apparatus having a memory of diminished size for lowering the production cost, the memory stores input video signals made up of plural pictures including intra-pictures (I-pictures)...
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5751347 |
Vestigial sideband test signal generator and method
A test signal generator presents a test signal of pseudorandom data in a format which simulates the Grand Alliance Transmission Layer Signal for the 8- or 16- vestigial sideband (8/16-VSB) signal...
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5748241 |
Residual coding of model failure regions in compressed video sequences
A method for residual coding of model failure regions in compressed video sequences in which a database of residuals for previous model failures is maintained at both the encoder and the decoder....
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5731835 |
Dynamic coding rate control in a block-based video coding system
A dynamic rate controller for a block-based video coding system. The rate controller is responsive to a scene cut flag generated by a scene cut detector. Once a scene cut flag is detected, the rate...
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5719986 |
Video signal encoding method
A method for encoding video signals including a first step of generating the information on picture characteristics at least including the luminance information of the input video signals in terms...
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