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7382923 |
Method and device for processing and decoding a coded digital signal
The present invention concerns a method of processing a coded digital signal containing on the one hand a set of samples of different types obtained by coding a set of original samples representing...
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7372903 |
Apparatus and method for object based rate control in a coding system
A method and apparatus for selecting a quantizer scale for each object within a frame to optimize the coding rate is disclosed. A quantizer scale is selected for each region or “object” within...
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7370115 |
Method of controlling terminal of MPEG-4 system using caching mechanism
A method of controlling a terminal of the MPEG-4 system to enable to faster reproduce the selected contents through a caching mechanism includes, if the contents to be reproduced is selected, the...
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7343287 |
Method and apparatus for scalable encoding and method and apparatus for scalable decoding
An apparatus for scalable encoding a spectrum of a signal including audio and/or video information, with the spectrum comprising binary spectral values, includes a means for generating a first...
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7321625 |
Wavelet based multiresolution video representation with spatially scalable motion vectors
Wavelet based multiresolution video representations generated by multi-scale motion compensated temporal filtering (MCTF) and spatial wavelet transform are disclosed. Since temporal filtering and...
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7313186 |
Method and apparatus for implementing wavelet filters in a digital system
A digital data system ( 100 ) provides 1-D, 2-D and 3-D capability and multi-band channel capability. Improved filter banks are created by generating a filter bank having an analysis portion and...
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7310370 |
Multi-layer video compression system with synthetic high frequencies
Multi-layered motion or still video compression includes, in an encoder or encoding function aspect of the invention, separating the video signal into low-frequency and high-frequency components,...
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7257161 |
Frequency thinning apparatus for thinning out frequency components of signal and frequency thinning apparatus
An analyzer transforms a digital signal into a spectrum representing the digital signal. A spectrum analyzing unit specifies a predetermined number of sets of the bands in decreasing order of the...
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7245665 |
Wireless remote operation system
A remote operation system includes a server and a client. In the server, a video-audio data conversion-into-common-format section converts data in a format unique to application software into data...
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7215819 |
Method and device for processing an encoded digital signal
A method of processing an encoded digital signal comprising a set of data obtained by encoding a set of original data representing physical quantities, and a set of information representing the...
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7203235 |
Architecture and method for fine granularity scalable video coding
A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images are generated by comparing an...
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7194000 |
Methods and systems for provision of streaming data services in an internet protocol network
Control of the transmission of streaming data between a first data processing system and a second data processing system in a packet network is provided. Priorities are assigned to packets of the...
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7164801 |
System and method for efficiently encoding an image by prioritizing groups of spatially correlated coefficients based on an activity measure
An encoder ( 300 ) selects ( 702, 1302, 1304,1306,1308 ) one or more subsets of spatially or temporally correlated transformed data coefficients, on the basis of the significance of each subset in...
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7133450 |
Method and devices for digital video signal compression and multi-screen process by multi-thread scaling
The present invention relates to methods and devices for compression and multi-screen process of digital video signals by multi-thread scaling. The method comprises. (a) a step to scale the...
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7116833 |
Method of transmitting selected regions of interest of digital video data at selected resolutions
A method of transmitting selected regions of interest of digital video data at selected resolutions, including: capturing digital video; compressing the digital video into a sequence of individual...
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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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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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7031535 |
Image processing apparatus capable of interpolating error data
This invention provides an image processing apparatus which receives an image signal divided into a plurality of different subband components, detects an error in low-frequency subband component...
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7027512 |
Spatio-temporal hybrid scalable video coding apparatus using subband decomposition and method
In video coding techniques, in order to improve a coding efficiency and reduce a computational complexity sharply by mixing a temporal scalability and a spatial scalability, a spatio-temporal...
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7020335 |
Methods and apparatus for object recognition and compression
Apparatus and methods are provided for object recognition and compression. The apparatus ( 114 ) comprises an object processor ( 402 ) configured to receive the image ( 120 ) and synthesize a...
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7020195 |
Layered coding and decoding of image data
An image processing system generates a base layer that represents a low-resolution portion of a source image. The image processing system also generates an enhancement layer that represents a...
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7016668 |
Method and apparatus for a reconfigurable multi-media system
A reconfigurable multi-media system, method and device provides monitoring and reconfiguration of a plurality of communication layers of a communications stack to dynamically reconfigure the...
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7010037 |
System and method for rate-distortion optimized data partitioning for video coding using backward adaptation
A system and method are disclosed that provide a simple and efficient layered video coding technique using a backward adaptive rate-distortion optimized data partitioning (RD-DP) of DCT...
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7006568 |
3D wavelet based video codec with human perceptual model
A video encoding/decoding system based on 3D wavelet decomposition and the human perceptual model is implemented. JND is applied in quantizer design to improve the subjective quality of compressed...
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7003034 |
Fine granularity scalability encoding/decoding apparatus and method
A fine granularity scalability encoding/decoding apparatus includes a first quantizer for performing a DCT on a motion-compensated image and quantizing a resulting value, a second quantizer for...
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7002913 |
Packet loss compensation method using injection of spectrally shaped noise
An insertion-based error concealment method and apparatus are provided whereby, instead of directly inserting white noise, a filter is created to shape the white noise. The filtered white noise is...
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6996172 |
Method and structure for scalability type selection in digital video
A scalability type selection method and structure for hybrid SNR-temporal scalability that employs a decision mechanism capable of selecting between SNR and temporal scalability based upon desired...
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6993074 |
Methods and arrangements for handling concentric mosaic image data
Methods and arrangements are provided for compressing, transporting and decompressing/rendering concentric mosaic image data. The methods and arrangements compress concentric mosaic image data...
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6977962 |
Method and apparatus for decoding and coding images with scene change detection function
LL subbands of first and second intermediate images obtained by an inverse quantizer are stored in an intermediate image memory. A scene change judging unit compares data stored in the intermediate...
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6973128 |
Multi-path transmission of fine-granular scalability video streams
A method transports a video over a network that includes multiple paths. First, a video is encoded into a base layer, one or more low bit-rate enhancement layers, and one or more high bit-rate...
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6973127 |
Apparatus and method for memory saving wavelet based video coding
A method and apparatus for compressing video signals. The video compression may include row by row horizontal subband filtering of video data representing part of an image, and row by row...
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6961388 |
Coding scheme for a wireless communication system
Coding techniques for a (e.g., OFDM) communication system capable of transmitting data on a number of “transmission channels” at different information bit rates based on the channels' achieved...
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6956904 |
Summarizing videos using motion activity descriptors correlated with audio features
A method for summarizing a video first detects audio peaks in a sub-sampled audio signal of the video. Then, motion activity in the video is extracted and filtered. The filtered motion activity is...
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6937773 |
Image encoding method and apparatus
An image signal is input from an image input unit and is divided into different spatial frequency bands by applying a discrete wavelet transform thereto using a discrete wavelet transformation...
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6934331 |
Brightness-variation compensation method and coding/decoding apparatus for moving pictures
A moving image brightness variation compensation method for encoding digital moving images for transmission and storage, and for image processing when editing moving images, the moving image...
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6904091 |
Methods and apparatus for progressive transmission of subband images
Images are subband transformed to create a plurality of subband images. Each subband image includes a plurality of pixels. Each pixel is represented by a plurality of bits with each bit associated...
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6898328 |
Method and apparatus for adaptive pixel estimation under high error rate conditions
A method and apparatus for adaptive pixel estimation under high error rate conditions are disclosed. Classes are created, feasible classes are determined, and an optimal filter is applied to...
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6879631 |
Selective compression network in an MPEG compatible decoder
An MPEG decoder in a high definition television receiver decodes and decompresses MPEG coded data to produce decompressed image pixel blocks, and includes a motion compensation network coupled to a...
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6876772 |
Picture-encoding apparatus and picture-encoding method
A picture-encoding apparatus provided by the present invention includes a wavelet transformation unit for carrying out wavelet transformation on an input picture to generate wavelet-transformation...
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6873739 |
Image compression/decoding apparatus and method
An image compression apparatus is provided, which includes a wavelet transformer, a quantizer, a comparator, a subtracter, a low data compressor and a high data compressor. The comparator compares...
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6873655 |
Codec system and method for spatially scalable video data
A CODEC system for spatially scalable video data includes a decimate unit for performing DCT-based down-sampling with respect to macro block data of input video data to produce decimated block data...
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6836512 |
Spatial scalability for fine granular video encoding
A method and system for high resolution formatting of video images and dynamically adjusting the transmission resolution of the high-resolution images is presented. The method first downscales the...
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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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6826232 |
Fine granular scalable video with embedded DCT coding of the enhancement layer
The present invention is directed to a method for encoding video data in an embedded fashion in order to achieve fine granular scalable video. The method includes the video data being transformed...
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6823129 |
Scaleable resolution motion image recording and storage system
A system for scaling resolution of an input stream includes an input for receiving the image input stream which passes the image input stream to a frame buffer. The frame buffer holds one or more...
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6819800 |
Moving image compression/decompression apparatus and method which use a wavelet transform technique
A moving image compression/decompression apparatus and method that uses, for example, a wavelet transform technique in order to improve a compression rate is disclosed. The moving image...
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6813314 |
Image decoding device for decoding a hierarchically coded image
A video coding device capable of adaptively processing input video data according to property of the data and realizing effective progressive transmission of the coded data even if image components...
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6801667 |
Method and apparatus for re-ordering of a bit stream
A method of selecting transform segments from a data stream ( 426 ), the stream comprising a plurality of blocks each comprising a plurality of transform segments, is disclosed. The selection...
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6801573 |
Method for dynamic 3D wavelet transform for video compression
A dynamic 3D wavelet transform system and method for compressing video including color or black and white signal. The method applies a so-called packed integer wavelet transform to individual video...
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6788740 |
System and method for encoding and decoding enhancement layer data using base layer quantization data
There is disclosed a video encoder comprising a base layer encoder and an enhancement layer encoder. The base layer encoder receives an input stream of video frames and generates compressed base...
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