KR100880305B1 - 화상 복호 장치 - Google Patents

화상 복호 장치 Download PDF

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Publication number
KR100880305B1
KR100880305B1 KR1020077029950A KR20077029950A KR100880305B1 KR 100880305 B1 KR100880305 B1 KR 100880305B1 KR 1020077029950 A KR1020077029950 A KR 1020077029950A KR 20077029950 A KR20077029950 A KR 20077029950A KR 100880305 B1 KR100880305 B1 KR 100880305B1
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quantization
inverse
matrix
transform
mantissa
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KR20080011234A (ko
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루이스 조셉 케로프스키
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샤프 가부시키가이샤
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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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Analogue/Digital Conversion (AREA)
KR1020077029950A 2001-08-09 2002-08-08 화상 복호 장치 Expired - Lifetime KR100880305B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US31143601P 2001-08-09 2001-08-09
US60/311,436 2001-08-09
US31901801P 2001-11-30 2001-11-30
US60/319,018 2001-11-30
US10/139,036 2002-05-02
US10/139,036 US7123655B2 (en) 2001-08-09 2002-05-02 Method for reduced bit-depth quantization

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1020067005094A Division KR100811986B1 (ko) 2001-08-09 2002-08-08 양자화 및 역양자화 방법

Publications (2)

Publication Number Publication Date
KR20080011234A KR20080011234A (ko) 2008-01-31
KR100880305B1 true KR100880305B1 (ko) 2009-01-28

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ID=27385275

Family Applications (3)

Application Number Title Priority Date Filing Date
KR1020077029950A Expired - Lifetime KR100880305B1 (ko) 2001-08-09 2002-08-08 화상 복호 장치
KR1020067005094A Expired - Lifetime KR100811986B1 (ko) 2001-08-09 2002-08-08 양자화 및 역양자화 방법
KR1020047001865A Expired - Lifetime KR100591653B1 (ko) 2001-08-09 2002-08-08 저감 비트 심도 양자화 방법

Family Applications After (2)

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KR1020067005094A Expired - Lifetime KR100811986B1 (ko) 2001-08-09 2002-08-08 양자화 및 역양자화 방법
KR1020047001865A Expired - Lifetime KR100591653B1 (ko) 2001-08-09 2002-08-08 저감 비트 심도 양자화 방법

Country Status (13)

Country Link
US (15) US7123655B2 (https=)
EP (6) EP2262113B1 (https=)
JP (16) JP3678365B2 (https=)
KR (3) KR100880305B1 (https=)
CN (5) CN100442669C (https=)
AT (2) ATE434288T1 (https=)
CA (12) CA2886119C (https=)
CY (2) CY1120069T1 (https=)
DE (1) DE60232681D1 (https=)
DK (5) DK1753243T3 (https=)
ES (6) ES2662250T3 (https=)
PT (5) PT1587216E (https=)
WO (1) WO2003017497A1 (https=)

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