JPS6480185A - Moving picture coding system - Google Patents
Moving picture coding systemInfo
- Publication number
- JPS6480185A JPS6480185A JP23613087A JP23613087A JPS6480185A JP S6480185 A JPS6480185 A JP S6480185A JP 23613087 A JP23613087 A JP 23613087A JP 23613087 A JP23613087 A JP 23613087A JP S6480185 A JPS6480185 A JP S6480185A
- Authority
- JP
- Japan
- Prior art keywords
- area
- coding
- circuit
- frame
- moving
- 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
Links
Abstract
PURPOSE:To contrive to improve the coding efficiency by limiting an area surrounding a human face as a narrower area than the changing area and distincting the fact area and other area in terms of the assigned bit number in coding and applying the coding to the areas thereby reproducing more naturally the face to offer easy to see picture. CONSTITUTION:An area extraction circuit 105 extracts areas of face, eye, mouth from an output of an inter-frame differential generating circuit comprising frame memories 102, 104 and a frame delay 103. The signal stored in the frame memory 102 is fed to a block forming circuit 106 for the coding and blocked and compared with the signal of the preceding frame stored in a frame memory 113 and a moving vector is obtained by a moving detection circuit 115. The obtained difference signal is fed to a moving area detection circuit 107, from which only a block including the moving area is selected and fed to the coding circuit 108 and the block address is outputted to a multiplexer circuit 110.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23613087A JP2828977B2 (en) | 1987-09-22 | 1987-09-22 | Video encoding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23613087A JP2828977B2 (en) | 1987-09-22 | 1987-09-22 | Video encoding device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6480185A true JPS6480185A (en) | 1989-03-27 |
JP2828977B2 JP2828977B2 (en) | 1998-11-25 |
Family
ID=16996203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23613087A Expired - Lifetime JP2828977B2 (en) | 1987-09-22 | 1987-09-22 | Video encoding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2828977B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0349475A (en) * | 1989-07-18 | 1991-03-04 | Sharp Corp | Color picture coding transmitter |
EP0676899A3 (en) * | 1994-04-06 | 1997-11-19 | AT&T Corp. | Audio-visual communication system having integrated perceptual speech and video coding |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102325257A (en) | 2007-07-20 | 2012-01-18 | 富士胶片株式会社 | Image processing apparatus,image processing method and computer readable medium |
JP2009049979A (en) | 2007-07-20 | 2009-03-05 | Fujifilm Corp | Image processing device, image processing method, image processing system, and program |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62120179A (en) * | 1985-11-14 | 1987-06-01 | ブリテイシユ・テレコミユニケ−シヨンズ・パブリツク・リミテツド・カンパニ | Image transmitter and image synthesizer |
-
1987
- 1987-09-22 JP JP23613087A patent/JP2828977B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62120179A (en) * | 1985-11-14 | 1987-06-01 | ブリテイシユ・テレコミユニケ−シヨンズ・パブリツク・リミテツド・カンパニ | Image transmitter and image synthesizer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0349475A (en) * | 1989-07-18 | 1991-03-04 | Sharp Corp | Color picture coding transmitter |
EP0676899A3 (en) * | 1994-04-06 | 1997-11-19 | AT&T Corp. | Audio-visual communication system having integrated perceptual speech and video coding |
Also Published As
Publication number | Publication date |
---|---|
JP2828977B2 (en) | 1998-11-25 |
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Legal Events
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