JPS5673987A - Linear forecast data compression coding method between images - Google Patents

Linear forecast data compression coding method between images

Info

Publication number
JPS5673987A
JPS5673987A JP15035079A JP15035079A JPS5673987A JP S5673987 A JPS5673987 A JP S5673987A JP 15035079 A JP15035079 A JP 15035079A JP 15035079 A JP15035079 A JP 15035079A JP S5673987 A JPS5673987 A JP S5673987A
Authority
JP
Japan
Prior art keywords
forecast
error
video element
change
code
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.)
Granted
Application number
JP15035079A
Other languages
Japanese (ja)
Other versions
JPS644390B2 (en
Inventor
Satoshi Hasegawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15035079A priority Critical patent/JPS5673987A/en
Publication of JPS5673987A publication Critical patent/JPS5673987A/en
Publication of JPS644390B2 publication Critical patent/JPS644390B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To achieve the forecast data compression code between screens having high compression efficiency without error, by forecasting the value of video element for the location of picture corresponded to the picture being compressed and coded, and producing the Huffman code through the check of change in the sign of positive and negative to the forecast error obtained. CONSTITUTION:From the forecast coefficient output from a forecast coefficient path 303 and the video element of reference screen from the memory 301, a video element value forecast circuit 304 of the video element location corresponding to the picture in compression code makes the forecast of video element value. Further, a coding circuit 305 checks the change in positive and negative signs to the forecast error obtained, and if no change, the absolute value of the forecast error is taken to produce the Huffman code corresponded, and if there is change, the positive and negative signs are added to the coresponding Huffman code to the absolute value of the forecast error. This output is fed to a memory 306 and it is stored with the data for one run's share of the circuit 303 and stored in a magnetic tape device 308 via an address counter 307. Thus, the forecast data compressing code having high compressing efficiency without error is obtained.
JP15035079A 1979-11-20 1979-11-20 Linear forecast data compression coding method between images Granted JPS5673987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15035079A JPS5673987A (en) 1979-11-20 1979-11-20 Linear forecast data compression coding method between images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15035079A JPS5673987A (en) 1979-11-20 1979-11-20 Linear forecast data compression coding method between images

Publications (2)

Publication Number Publication Date
JPS5673987A true JPS5673987A (en) 1981-06-19
JPS644390B2 JPS644390B2 (en) 1989-01-25

Family

ID=15495063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15035079A Granted JPS5673987A (en) 1979-11-20 1979-11-20 Linear forecast data compression coding method between images

Country Status (1)

Country Link
JP (1) JPS5673987A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU606005B2 (en) * 1988-12-14 1991-01-24 Ykk Corporation Slider lock assembly
US11919593B2 (en) 2020-02-21 2024-03-05 Honda Motor Co., Ltd. Saddle-ride type vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5566175A (en) * 1978-11-14 1980-05-19 Nippon Telegr & Teleph Corp <Ntt> Redundancy suppression coding system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5566175A (en) * 1978-11-14 1980-05-19 Nippon Telegr & Teleph Corp <Ntt> Redundancy suppression coding system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU606005B2 (en) * 1988-12-14 1991-01-24 Ykk Corporation Slider lock assembly
US11919593B2 (en) 2020-02-21 2024-03-05 Honda Motor Co., Ltd. Saddle-ride type vehicle

Also Published As

Publication number Publication date
JPS644390B2 (en) 1989-01-25

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