DE69223699T2 - Bildkompressionsvorrichtung - Google Patents

Bildkompressionsvorrichtung

Info

Publication number
DE69223699T2
DE69223699T2 DE69223699T DE69223699T DE69223699T2 DE 69223699 T2 DE69223699 T2 DE 69223699T2 DE 69223699 T DE69223699 T DE 69223699T DE 69223699 T DE69223699 T DE 69223699T DE 69223699 T2 DE69223699 T2 DE 69223699T2
Authority
DE
Germany
Prior art keywords
clock
signal
data
representation
write
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
DE69223699T
Other languages
German (de)
English (en)
Other versions
DE69223699D1 (de
Inventor
Sigeharu Kawamoto
Masahiro Nakanishi
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69223699D1 publication Critical patent/DE69223699D1/de
Application granted granted Critical
Publication of DE69223699T2 publication Critical patent/DE69223699T2/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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/403—Edge-driven scaling; Edge-based scaling
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Television Signal Processing For Recording (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Processing (AREA)
  • Digital Computer Display Output (AREA)
  • Studio Circuits (AREA)
  • Editing Of Facsimile Originals (AREA)
DE69223699T 1991-08-05 1992-08-03 Bildkompressionsvorrichtung Expired - Fee Related DE69223699T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03195164A JP3123134B2 (ja) 1991-08-05 1991-08-05 画像縮小装置

Publications (2)

Publication Number Publication Date
DE69223699D1 DE69223699D1 (de) 1998-02-05
DE69223699T2 true DE69223699T2 (de) 1998-07-16

Family

ID=16336497

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69223699T Expired - Fee Related DE69223699T2 (de) 1991-08-05 1992-08-03 Bildkompressionsvorrichtung

Country Status (4)

Country Link
US (1) US5285281A (enExample)
EP (1) EP0527023B1 (enExample)
JP (1) JP3123134B2 (enExample)
DE (1) DE69223699T2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2732772B2 (ja) * 1992-05-19 1998-03-30 松下電器産業株式会社 デジタル信号処理回路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172167B (en) * 1985-03-07 1988-06-15 Sony Corp Video signal processing
US4729012A (en) * 1985-08-30 1988-03-01 Rca Corporation Dual mode television receiver for displaying wide screen and standard aspect ratio video signals
US4694337A (en) * 1986-01-23 1987-09-15 Princeton Electronics Products, Inc. Video line rate converter
US5029017A (en) * 1986-10-08 1991-07-02 Konishiroku Photo Industry Co., Ltd. Image processing apparatus capable of enlarging/reducing apparatus
JP2767933B2 (ja) * 1989-11-14 1998-06-25 ソニー株式会社 画素数変換回路

Also Published As

Publication number Publication date
DE69223699D1 (de) 1998-02-05
EP0527023B1 (en) 1997-12-29
JPH0541794A (ja) 1993-02-19
EP0527023A3 (enExample) 1994-04-13
US5285281A (en) 1994-02-08
EP0527023A2 (en) 1993-02-10
JP3123134B2 (ja) 2001-01-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

8339 Ceased/non-payment of the annual fee