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1. PT1863295 - CODED BLOCK PATTERN ENCODING/DECODING WITH SPATIAL PREDICTION

Office
Portugal
Application Number 07014945
Application Date 30.11.1999
Publication Number 1863295
Publication Date 22.02.2010
Publication Kind E
IPC
H04N 7/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
50involving transform and predictive coding
H04N 11/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
11Colour television systems
04using pulse code modulation
G06T 9/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
9Image coding
H03M 7/40
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
7Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
40Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
H04N 7/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
H04N 7/32
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
32involving predictive coding
CPC
H04N 19/197
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
189characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
196being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
197including determination of the initial value of an encoding parameter
H04N 19/159
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70characterised by syntax aspects related to video coding, e.g. related to compression standards
H04N 19/172
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
17the unit being an image region, e.g. an object
172the region being a picture, frame or field
H04N 19/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
46Embedding additional information in the video signal during the compression process
Applicants MICROSOFT CORP
Inventors LEE MING-CHIEH
BRUCE CHIH-LUNG LIN
Priority Data 09201272 30.11.1998 US
Title
(EN) CODED BLOCK PATTERN ENCODING/DECODING WITH SPATIAL PREDICTION
(PT) CODIFICAÇÃO/DESCODIFICAÇÃO DE PADRÃO DE BLOCO CODIFICADO COM PREDIÇÃO ESPACIAL
Abstract
(EN) A video encoding and decoding method are disclosed for encoding and decoding block parameters wherein the correlation between chrominance and luminance blocks in each macroblock is exploited. Coded block parameters were used to code image blocks of image samples into structures called macroblocks. Coded block pattern for chrominance and luminance are combined into a single parameter for the macroblock and jointly coded with a single variable length code. Spatial coherence of coded block patterns can be further exploited by computing spatially predicted coded block pattern parameters.