JPS6419874A - Image encoding system - Google Patents

Image encoding system

Info

Publication number
JPS6419874A
JPS6419874A JP62176259A JP17625987A JPS6419874A JP S6419874 A JPS6419874 A JP S6419874A JP 62176259 A JP62176259 A JP 62176259A JP 17625987 A JP17625987 A JP 17625987A JP S6419874 A JPS6419874 A JP S6419874A
Authority
JP
Japan
Prior art keywords
block
encoder
encoding
signal
sampling density
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.)
Pending
Application number
JP62176259A
Other languages
Japanese (ja)
Inventor
Yoshihiko Tokunaga
Hiroyoshi Yuasa
Akira Yasuda
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP62176259A priority Critical patent/JPS6419874A/en
Publication of JPS6419874A publication Critical patent/JPS6419874A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00Image coding
    • G06T9/004Predictors, e.g. intraframe, interframe coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)

Abstract

PURPOSE:To obtain the reproduced image of a satisfactory picture quality with small encoding quantity by dividing an inputted image into a block composed of plural picture elements, after that, selecting one encoder out of the plural encoders based on a parameter to express the signal distribution in the block for every block and executing an encoding. CONSTITUTION:A signal distribution computing part 3 in the block computes the parameter to express a block signal distribution in a buffer memory 2 and the parameter is sent to an encoder selecting part 4. The encoder selecting part 4 selects one encoder out of the plural encoders, whose quantizing characteristics are different, prepared in advance to an encoder memory 5, and then sets it to a variable sampling density encoding/decoding part 6. In the variable sampling density encoding/decoding part 6, an inputted image signal and a forecasted image signal are subtracted by a subtracter 12, a forecasted error signal is obtained and said forecasted error signal is sent to a variable sampling density encoding circuit 10 and a compressing code is outputted. Said compressing code goes to be a reproduced image signal by a variable sampling density decoding circuit 11 and simultaneously is sent to a forecasting circuit 9.
JP62176259A 1987-07-15 1987-07-15 Image encoding system Pending JPS6419874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62176259A JPS6419874A (en) 1987-07-15 1987-07-15 Image encoding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62176259A JPS6419874A (en) 1987-07-15 1987-07-15 Image encoding system

Publications (1)

Publication Number Publication Date
JPS6419874A true JPS6419874A (en) 1989-01-23

Family

ID=16010439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62176259A Pending JPS6419874A (en) 1987-07-15 1987-07-15 Image encoding system

Country Status (1)

Country Link
JP (1) JPS6419874A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000048400A1 (en) * 1999-02-11 2000-08-17 Loudeye Technologies, Inc. Distributed production system for digitally encoding information
US6873877B1 (en) 1999-02-11 2005-03-29 Loudeye Corp. Distributed production system for digitally encoding information

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000048400A1 (en) * 1999-02-11 2000-08-17 Loudeye Technologies, Inc. Distributed production system for digitally encoding information
US6873877B1 (en) 1999-02-11 2005-03-29 Loudeye Corp. Distributed production system for digitally encoding information

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