GB2352904B - Video data compression - Google Patents

Video data compression

Info

Publication number
GB2352904B
GB2352904B GB9918012A GB9918012A GB2352904B GB 2352904 B GB2352904 B GB 2352904B GB 9918012 A GB9918012 A GB 9918012A GB 9918012 A GB9918012 A GB 9918012A GB 2352904 B GB2352904 B GB 2352904B
Authority
GB
United Kingdom
Prior art keywords
video data
data compression
compression
video
data
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
GB9918012A
Other versions
GB2352904A (en
GB9918012D0 (en
Inventor
Robert Mark Stefan Porter
Nicholas Ian Saunders
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.)
Sony Europe Ltd
Original Assignee
Sony United Kingdom Ltd
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
Application filed by Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Priority to GB9918012A priority Critical patent/GB2352904B/en
Publication of GB9918012D0 publication Critical patent/GB9918012D0/en
Publication of GB2352904A publication Critical patent/GB2352904A/en
Application granted granted Critical
Publication of GB2352904B publication Critical patent/GB2352904B/en
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
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/17—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
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB9918012A 1999-07-30 1999-07-30 Video data compression Expired - Fee Related GB2352904B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9918012A GB2352904B (en) 1999-07-30 1999-07-30 Video data compression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9918012A GB2352904B (en) 1999-07-30 1999-07-30 Video data compression

Publications (3)

Publication Number Publication Date
GB9918012D0 GB9918012D0 (en) 1999-09-29
GB2352904A GB2352904A (en) 2001-02-07
GB2352904B true GB2352904B (en) 2003-11-05

Family

ID=10858296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9918012A Expired - Fee Related GB2352904B (en) 1999-07-30 1999-07-30 Video data compression

Country Status (1)

Country Link
GB (1) GB2352904B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2306831A (en) * 1995-10-30 1997-05-07 Sony Uk Ltd Video data compression
GB2323493A (en) * 1997-02-25 1998-09-23 British Broadcasting Corp Quantisation for compression systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2306831A (en) * 1995-10-30 1997-05-07 Sony Uk Ltd Video data compression
GB2323493A (en) * 1997-02-25 1998-09-23 British Broadcasting Corp Quantisation for compression systems

Also Published As

Publication number Publication date
GB2352904A (en) 2001-02-07
GB9918012D0 (en) 1999-09-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100730