CA2244003A1 - Digital image encoding and decoding method and digital image encoding and decoding device using the same - Google Patents
Digital image encoding and decoding method and digital image encoding and decoding device using the sameInfo
- Publication number
- CA2244003A1 CA2244003A1 CA002244003A CA2244003A CA2244003A1 CA 2244003 A1 CA2244003 A1 CA 2244003A1 CA 002244003 A CA002244003 A CA 002244003A CA 2244003 A CA2244003 A CA 2244003A CA 2244003 A1 CA2244003 A1 CA 2244003A1
- Authority
- CA
- Canada
- Prior art keywords
- data
- picture
- digital image
- image encoding
- producing
- 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
Landscapes
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The present invention provides an encoder and a decoder of digital picture data, and the encoder/decoder can realize high precision transform with less quantity of transferred data, when a parameter of the digital picture data is not an integer but has numbers of digits, to which the Affine transformation can be applicable. The encoder/decoder comprises the following elements:
(a) picture compression means for encoding an input picture and compressing the data, (b) coordinates transform means for outputting coordinate data which is obtained by decoding the compressed data and transforming the decoded data into a coordinate system, (c) transformation parameter producing means for producing transformation parameters from the coordinates data, (d) predicted picture producing means for producing predicted picture from the input picture by the transformation parameter, and (e) transmission means for transmitting the compressed picture and the coordinates data.
(a) picture compression means for encoding an input picture and compressing the data, (b) coordinates transform means for outputting coordinate data which is obtained by decoding the compressed data and transforming the decoded data into a coordinate system, (c) transformation parameter producing means for producing transformation parameters from the coordinates data, (d) predicted picture producing means for producing predicted picture from the input picture by the transformation parameter, and (e) transmission means for transmitting the compressed picture and the coordinates data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2488796 CA2488796C (en) | 1996-01-22 | 1997-01-21 | Digital image encoding and decoding method and digital image encoding and decoding device using the same |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP810896 | 1996-01-22 | ||
JP8-008108 | 1996-01-22 | ||
JP8-129516 | 1996-05-24 | ||
JP12951696 | 1996-05-24 | ||
PCT/JP1997/000118 WO1997027707A1 (en) | 1996-01-22 | 1997-01-21 | Digital image encoding and decoding method and digital image encoding and decoding device using the same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2488796 Division CA2488796C (en) | 1996-01-22 | 1997-01-21 | Digital image encoding and decoding method and digital image encoding and decoding device using the same |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2244003A1 true CA2244003A1 (en) | 1997-07-31 |
CA2244003C CA2244003C (en) | 2005-12-06 |
Family
ID=35519719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2244003 Expired - Lifetime CA2244003C (en) | 1996-01-22 | 1997-01-21 | Digital image encoding and decoding method and digital image encoding and decoding device using the same |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2244003C (en) |
-
1997
- 1997-01-21 CA CA 2244003 patent/CA2244003C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2244003C (en) | 2005-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20170123 |