DK1459449T3 - Kombineret kvantisering og normalisering baseret på en mantisse-eksponent repræsentation af en kvantiseringsparameterfunktion - Google Patents

Kombineret kvantisering og normalisering baseret på en mantisse-eksponent repræsentation af en kvantiseringsparameterfunktion

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Publication number
DK1459449T3
DK1459449T3 DK02755888T DK02755888T DK1459449T3 DK 1459449 T3 DK1459449 T3 DK 1459449T3 DK 02755888 T DK02755888 T DK 02755888T DK 02755888 T DK02755888 T DK 02755888T DK 1459449 T3 DK1459449 T3 DK 1459449T3
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DK
Denmark
Prior art keywords
quantization
forming
mantissa
coefficient
parameter function
Prior art date
Application number
DK02755888T
Other languages
English (en)
Inventor
Louis Joseph Kerofsky
Original Assignee
Sharp Kk
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Publication date
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Publication of DK1459449T3 publication Critical patent/DK1459449T3/da

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/14—Conversion to or from non-weighted codes
    • H03M7/24—Conversion to or from floating-point codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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 the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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 the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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 the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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
    • H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised 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 the unit being bits, e.g. of the compressed video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
DK02755888T 2001-08-09 2002-08-08 Kombineret kvantisering og normalisering baseret på en mantisse-eksponent repræsentation af en kvantiseringsparameterfunktion DK1459449T3 (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US31143601P 2001-08-09 2001-08-09
US31901801P 2001-11-30 2001-11-30
US10/139,036 US7123655B2 (en) 2001-08-09 2002-05-02 Method for reduced bit-depth quantization
PCT/JP2002/008146 WO2003017497A1 (en) 2001-08-09 2002-08-08 Method for reduced bit-depth quantization

Publications (1)

Publication Number Publication Date
DK1459449T3 true DK1459449T3 (da) 2009-08-31

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Family Applications (5)

Application Number Title Priority Date Filing Date
DK10179630.8T DK2262113T3 (da) 2001-08-09 2002-08-08 Fælles kvantiserings- og heltalstransformations-normalisering ved anvendelse af en mantisse-eksponent-repræsentation af en kvantiserings-parameter
DK06019033.7T DK1753243T3 (da) 2001-08-09 2002-08-08 Fælles kvantiserings- og heltalstransformationsnormalisering under benyttelse af en mantisse-eksponentrepræsentation af en kvantiseringsparameter
DK16186353.5T DK3121966T3 (da) 2001-08-09 2002-08-08 Fælles kvantiserings- og heltalstransformationsnormalisering under benyttelse af en mantisse-eksponentrepræsentation af en kvantiseringsparameter
DK02755888T DK1459449T3 (da) 2001-08-09 2002-08-08 Kombineret kvantisering og normalisering baseret på en mantisse-eksponent repræsentation af en kvantiseringsparameterfunktion
DK10179636.5T DK2262114T3 (da) 2001-08-09 2002-08-08 Ledkvantisering og heltalstranformationsnormalisering ved hjælp af en mantisse-eksponent-angivelse af en kvantiseringsparameter

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DK10179630.8T DK2262113T3 (da) 2001-08-09 2002-08-08 Fælles kvantiserings- og heltalstransformations-normalisering ved anvendelse af en mantisse-eksponent-repræsentation af en kvantiserings-parameter
DK06019033.7T DK1753243T3 (da) 2001-08-09 2002-08-08 Fælles kvantiserings- og heltalstransformationsnormalisering under benyttelse af en mantisse-eksponentrepræsentation af en kvantiseringsparameter
DK16186353.5T DK3121966T3 (da) 2001-08-09 2002-08-08 Fælles kvantiserings- og heltalstransformationsnormalisering under benyttelse af en mantisse-eksponentrepræsentation af en kvantiseringsparameter

Family Applications After (1)

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DK10179636.5T DK2262114T3 (da) 2001-08-09 2002-08-08 Ledkvantisering og heltalstranformationsnormalisering ved hjælp af en mantisse-eksponent-angivelse af en kvantiseringsparameter

Country Status (14)

Country Link
US (15) US7123655B2 (da)
EP (6) EP1459449B1 (da)
JP (16) JP3678365B2 (da)
KR (3) KR100811986B1 (da)
CN (5) CN101399988B (da)
AT (2) ATE549861T1 (da)
CA (12) CA2946246C (da)
CY (2) CY1120069T1 (da)
DE (1) DE60232681D1 (da)
DK (5) DK2262113T3 (da)
ES (6) ES2661930T3 (da)
HK (5) HK1108785A1 (da)
PT (5) PT2262113T (da)
WO (1) WO2003017497A1 (da)

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