DE3687659D1 - Verfahren zum kodieren eines videosignals fuer die uebertragung in beschraenkter bandbreite. - Google Patents

Verfahren zum kodieren eines videosignals fuer die uebertragung in beschraenkter bandbreite.

Info

Publication number
DE3687659D1
DE3687659D1 DE8787900237T DE3687659T DE3687659D1 DE 3687659 D1 DE3687659 D1 DE 3687659D1 DE 8787900237 T DE8787900237 T DE 8787900237T DE 3687659 T DE3687659 T DE 3687659T DE 3687659 D1 DE3687659 D1 DE 3687659D1
Authority
DE
Germany
Prior art keywords
coding
transmission
video signal
restricted bandwidth
bandwidth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8787900237T
Other languages
English (en)
Other versions
DE3687659T2 (de
Inventor
Dominic Wells
James Knee
Peter Sandbank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Broadcasting Corp
Original Assignee
British Broadcasting Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB868620801A external-priority patent/GB8620801D0/en
Application filed by British Broadcasting Corp filed Critical British Broadcasting Corp
Application granted granted Critical
Publication of DE3687659D1 publication Critical patent/DE3687659D1/de
Publication of DE3687659T2 publication Critical patent/DE3687659T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
    • H04N7/125—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line the signal segment being a picture element
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • H04N7/0152—High-definition television systems using spatial or temporal subsampling
    • H04N7/0155—High-definition television systems using spatial or temporal subsampling using pixel blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE8787900237T 1985-12-24 1986-12-23 Verfahren zum kodieren eines videosignals fuer die uebertragung in beschraenkter bandbreite. Expired - Fee Related DE3687659T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8531779 1985-12-24
GB868620801A GB8620801D0 (en) 1985-12-24 1986-08-28 Video signals
PCT/GB1986/000798 WO1987004033A1 (en) 1985-12-24 1986-12-23 Method of coding a video signal for transmission in a restricted bandwidth

Publications (2)

Publication Number Publication Date
DE3687659D1 true DE3687659D1 (de) 1993-03-11
DE3687659T2 DE3687659T2 (de) 1993-07-29

Family

ID=26290158

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787900237T Expired - Fee Related DE3687659T2 (de) 1985-12-24 1986-12-23 Verfahren zum kodieren eines videosignals fuer die uebertragung in beschraenkter bandbreite.

Country Status (6)

Country Link
US (1) US4862264A (de)
EP (1) EP0250533B1 (de)
JP (1) JPS63502074A (de)
DE (1) DE3687659T2 (de)
GB (1) GB2191656B (de)
WO (1) WO1987004033A1 (de)

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US7602851B2 (en) * 2003-07-18 2009-10-13 Microsoft Corporation Intelligent differential quantization of video coding
US7738554B2 (en) 2003-07-18 2010-06-15 Microsoft Corporation DC coefficient signaling at small quantization step sizes
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US7801383B2 (en) * 2004-05-15 2010-09-21 Microsoft Corporation Embedded scalar quantizers with arbitrary dead-zone ratios
US8422546B2 (en) 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
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US8503536B2 (en) 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
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Also Published As

Publication number Publication date
US4862264A (en) 1989-08-29
JPS63502074A (ja) 1988-08-11
EP0250533B1 (de) 1993-01-27
WO1987004033A1 (en) 1987-07-02
DE3687659T2 (de) 1993-07-29
EP0250533A1 (de) 1988-01-07
GB8715629D0 (en) 1986-12-23
GB2191656B (en) 1989-10-18
GB2191656A (en) 1987-12-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8339 Ceased/non-payment of the annual fee