FI112579B - Menetelmä ja laite, joilla vältetään pyöristysvirheet kun käänteisesti muunnetaan muunnoskertoimia, jotka edustavat elokuvasignaalia - Google Patents

Menetelmä ja laite, joilla vältetään pyöristysvirheet kun käänteisesti muunnetaan muunnoskertoimia, jotka edustavat elokuvasignaalia Download PDF

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Publication number
FI112579B
FI112579B FI945106A FI945106A FI112579B FI 112579 B FI112579 B FI 112579B FI 945106 A FI945106 A FI 945106A FI 945106 A FI945106 A FI 945106A FI 112579 B FI112579 B FI 112579B
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parity
signal
blocks
conversion
block
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FI945106A
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FI945106A (fi
FI945106A0 (fi
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Teruhiko Suzuki
Yoichi Yagasaki
Tatsuya Sudo
Toru Okazaki
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Sony Corp
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • 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
    • H04N19/169—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
    • H04N19/42—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
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
    • 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
    • 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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • 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
    • 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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Discrete Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Color Television Systems (AREA)
  • Error Detection And Correction (AREA)
  • Television Signal Processing For Recording (AREA)
  • Complex Calculations (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Detection And Correction Of Errors (AREA)
  • Color Television Image Signal Generators (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
FI945106A 1993-03-01 1994-10-31 Menetelmä ja laite, joilla vältetään pyöristysvirheet kun käänteisesti muunnetaan muunnoskertoimia, jotka edustavat elokuvasignaalia FI112579B (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP4020393 1993-03-01
JP4020393 1993-03-01
JP5990993 1993-03-19
JP5990993 1993-03-19
PCT/JP1994/000329 WO1994021083A1 (en) 1993-03-01 1994-03-01 Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed
JP9400329 1994-03-01

Publications (3)

Publication Number Publication Date
FI945106A0 FI945106A0 (fi) 1994-10-31
FI945106A FI945106A (fi) 1994-12-30
FI112579B true FI112579B (fi) 2003-12-15

Family

ID=26379647

Family Applications (1)

Application Number Title Priority Date Filing Date
FI945106A FI112579B (fi) 1993-03-01 1994-10-31 Menetelmä ja laite, joilla vältetään pyöristysvirheet kun käänteisesti muunnetaan muunnoskertoimia, jotka edustavat elokuvasignaalia

Country Status (29)

Country Link
US (2) US5481553A (ja)
EP (5) EP0903944B1 (ja)
JP (2) JP3610578B2 (ja)
KR (1) KR100287490B1 (ja)
CN (1) CN1076935C (ja)
AT (2) ATE185663T1 (ja)
AU (1) AU673244B2 (ja)
BR (1) BR9404321A (ja)
CA (1) CA2134444C (ja)
DE (2) DE69421135T2 (ja)
DK (5) DK2276259T3 (ja)
EG (1) EG20330A (ja)
ES (5) ES2389797T3 (ja)
FI (1) FI112579B (ja)
GR (1) GR3032133T3 (ja)
HK (2) HK1013575A1 (ja)
HU (1) HU217744B (ja)
IL (1) IL108787A (ja)
MY (1) MY110794A (ja)
NO (2) NO314709B1 (ja)
NZ (1) NZ261907A (ja)
OA (1) OA10108A (ja)
PL (1) PL173287B1 (ja)
PT (4) PT954182E (ja)
RO (1) RO115926B1 (ja)
RU (1) RU2119727C1 (ja)
TR (1) TR28436A (ja)
TW (1) TW224553B (ja)
WO (1) WO1994021083A1 (ja)

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