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WO1998007278A3 - Video encoder/decoder - Google Patents

Video encoder/decoder Download PDF

Info

Publication number
WO1998007278A3
WO1998007278A3 PCT/US1997/013039 US9713039W WO9807278A3 WO 1998007278 A3 WO1998007278 A3 WO 1998007278A3 US 9713039 W US9713039 W US 9713039W WO 9807278 A3 WO9807278 A3 WO 9807278A3
Authority
WO
WIPO (PCT)
Prior art keywords
processor
image signal
encoder
acquisition module
coupled
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.)
Ceased
Application number
PCT/US1997/013039
Other languages
French (fr)
Other versions
WO1998007278A2 (en
Inventor
John J Proctor
Mark M Baldassari
Craig H Richardson
Chris J Hodges
Kwan K Truong
David L Smith
Philip A Desjardins
Thomas H Knight
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.)
3Com Corp
Original Assignee
3Com 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 US08/689,444 external-priority patent/US5805228A/en
Priority claimed from US08/694,949 external-priority patent/US5926226A/en
Priority claimed from US08/689,401 external-priority patent/US5831678A/en
Priority claimed from US08/689,456 external-priority patent/US5864681A/en
Priority claimed from US08/689,519 external-priority patent/US6072830A/en
Application filed by 3Com Corp filed Critical 3Com Corp
Priority to AU40455/97A priority Critical patent/AU4045597A/en
Publication of WO1998007278A2 publication Critical patent/WO1998007278A2/en
Publication of WO1998007278A3 publication Critical patent/WO1998007278A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • H04N19/90—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
    • H04N19/94—Vector quantisation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/008—Vector quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method and an apparatus for encoding an image signal. The apparatus includes an acquisition module disposed to receive the image signal. A first processor is coupled to the acquisition module. At least one encoder processor is coupled to the first processor. The at least one encoder processor produces an encoded image signal under control of the first processor. The method includes the steps of converting an input image signal to at least one encoder processor. The method further includes the step of applying, at the at least one encoder processor, a hierarchical vector quantization compression algorithm to the digitized image signal. At the next step, a resultant encoded bit stream generated by the application of the algorithm is collected. The method and apparatus of the present invention may be used in conjunction with an ordinary modem to transmit and/or receive audio, video sequences of still images.
PCT/US1997/013039 1996-08-09 1997-08-06 Video encoder/decoder Ceased WO1998007278A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU40455/97A AU4045597A (en) 1996-08-09 1997-08-06 Video encoder/decoder

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US69473496A 1996-08-09 1996-08-09
US08/689,444 US5805228A (en) 1996-08-09 1996-08-09 Video encoder/decoder system
US08/689,456 1996-08-09
US08/689,444 1996-08-09
US08/694,949 US5926226A (en) 1996-08-09 1996-08-09 Method for adjusting the quality of a video coder
US08/689,519 1996-08-09
US08/689,401 US5831678A (en) 1996-08-09 1996-08-09 Video encoder/decoder system
US08/689,456 US5864681A (en) 1996-08-09 1996-08-09 Video encoder/decoder system
US08/689,519 US6072830A (en) 1996-08-09 1996-08-09 Method for generating a compressed video signal
US08/694,949 1996-08-09
US08/689,401 1996-08-09
US08/694,734 1996-08-09

Publications (2)

Publication Number Publication Date
WO1998007278A2 WO1998007278A2 (en) 1998-02-19
WO1998007278A3 true WO1998007278A3 (en) 1998-05-14

Family

ID=27560234

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/013039 Ceased WO1998007278A2 (en) 1996-08-09 1997-08-06 Video encoder/decoder

Country Status (2)

Country Link
AU (1) AU4045597A (en)
WO (1) WO1998007278A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8284844B2 (en) 2002-04-01 2012-10-09 Broadcom Corporation Video decoding system supporting multiple standards
US9479788B2 (en) * 2014-03-17 2016-10-25 Qualcomm Incorporated Systems and methods for low complexity encoding and background detection
CN116594320B (en) * 2023-07-18 2023-09-15 北京啸为科技有限公司 Image sensor simulation device and controller test system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849810A (en) * 1987-06-02 1989-07-18 Picturetel Corporation Hierarchial encoding method and apparatus for efficiently communicating image sequences
US4853779A (en) * 1987-04-07 1989-08-01 Siemens Aktiengesellschaft Method for data reduction of digital image sequences
WO1994025934A1 (en) * 1993-04-30 1994-11-10 Comsat Corporation Codeword-dependent post-filtering for vector quantization-based image compression
US5444489A (en) * 1993-02-11 1995-08-22 Georgia Tech Research Corporation Vector quantization video encoder using hierarchical cache memory scheme

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4853779A (en) * 1987-04-07 1989-08-01 Siemens Aktiengesellschaft Method for data reduction of digital image sequences
US4849810A (en) * 1987-06-02 1989-07-18 Picturetel Corporation Hierarchial encoding method and apparatus for efficiently communicating image sequences
US5444489A (en) * 1993-02-11 1995-08-22 Georgia Tech Research Corporation Vector quantization video encoder using hierarchical cache memory scheme
WO1994025934A1 (en) * 1993-04-30 1994-11-10 Comsat Corporation Codeword-dependent post-filtering for vector quantization-based image compression

Also Published As

Publication number Publication date
AU4045597A (en) 1998-03-06
WO1998007278A2 (en) 1998-02-19

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