CA2475778A1 - An image coding method and encoder using positive and negative rounding methods while performing motion compensation - Google Patents
An image coding method and encoder using positive and negative rounding methods while performing motion compensation Download PDFInfo
- Publication number
- CA2475778A1 CA2475778A1 CA002475778A CA2475778A CA2475778A1 CA 2475778 A1 CA2475778 A1 CA 2475778A1 CA 002475778 A CA002475778 A CA 002475778A CA 2475778 A CA2475778 A CA 2475778A CA 2475778 A1 CA2475778 A1 CA 2475778A1
- Authority
- CA
- Canada
- Prior art keywords
- motion compensation
- positive
- coding method
- encoder
- image coding
- 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.)
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- Compression Or Coding Systems Of Tv Signals (AREA)
- Studio Devices (AREA)
Abstract
The present invention relates to an image coding method. The method is comprised of the steps of synthesizing a prediction image by performing motion compensation; and multiplexing information related to a difference image between an input image and the prediction image, and information related to motion vectors estimated in performing the motion compensation. The motion compensation is performed using a positive rounding method and a negative rounding method in interpolating intensity values of pixels.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15065697 | 1997-06-09 | ||
JP9-150656 | 1997-06-09 | ||
CA 2240118 CA2240118C (en) | 1997-06-09 | 1998-06-08 | Image sequence coding method and decoding method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2240118 Division CA2240118C (en) | 1997-06-09 | 1998-06-08 | Image sequence coding method and decoding method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2475778A1 true CA2475778A1 (en) | 1998-12-09 |
CA2475778C CA2475778C (en) | 2005-10-04 |
Family
ID=25680294
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2318677 Expired - Fee Related CA2318677C (en) | 1997-06-09 | 1998-06-08 | Method and apparatus for image decoding |
CA 2475779 Expired - Fee Related CA2475779C (en) | 1997-06-09 | 1998-06-08 | Digital portable terminal and method using positive and negative rounding for pixel value interpolation in motion compensation |
CA 2475778 Expired - Fee Related CA2475778C (en) | 1997-06-09 | 1998-06-08 | An image coding method and encoder using positive and negative rounding methods while performing motion compensation |
CA 2475777 Expired - Fee Related CA2475777C (en) | 1997-06-09 | 1998-06-08 | A recording medium containing positive and negative rounding information related to coded data of an image sequence |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2318677 Expired - Fee Related CA2318677C (en) | 1997-06-09 | 1998-06-08 | Method and apparatus for image decoding |
CA 2475779 Expired - Fee Related CA2475779C (en) | 1997-06-09 | 1998-06-08 | Digital portable terminal and method using positive and negative rounding for pixel value interpolation in motion compensation |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2475777 Expired - Fee Related CA2475777C (en) | 1997-06-09 | 1998-06-08 | A recording medium containing positive and negative rounding information related to coded data of an image sequence |
Country Status (1)
Country | Link |
---|---|
CA (4) | CA2318677C (en) |
-
1998
- 1998-06-08 CA CA 2318677 patent/CA2318677C/en not_active Expired - Fee Related
- 1998-06-08 CA CA 2475779 patent/CA2475779C/en not_active Expired - Fee Related
- 1998-06-08 CA CA 2475778 patent/CA2475778C/en not_active Expired - Fee Related
- 1998-06-08 CA CA 2475777 patent/CA2475777C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2475779A1 (en) | 1998-12-09 |
CA2318677C (en) | 2002-04-16 |
CA2475777A1 (en) | 1998-12-09 |
CA2475777C (en) | 2005-10-04 |
CA2475778C (en) | 2005-10-04 |
CA2318677A1 (en) | 1998-12-09 |
CA2475779C (en) | 2005-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20130610 |