JP2001268581A5 - - Google Patents
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- JP2001268581A5 JP2001268581A5 JP2001048729A JP2001048729A JP2001268581A5 JP 2001268581 A5 JP2001268581 A5 JP 2001268581A5 JP 2001048729 A JP2001048729 A JP 2001048729A JP 2001048729 A JP2001048729 A JP 2001048729A JP 2001268581 A5 JP2001268581 A5 JP 2001268581A5
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- image
- encoded frame
- content data
- predictive decoding
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Claims (2)
それぞれ前方参照画像,及び後方参照画像として用いられる第2,及び第3の符号化フレームが画像コンテンツデータを含むか否かを、上記第2の符号化フレームに含まれ、第2の符号化フレームが画像コンテンツデータを含むか否かを示す第1のフラグと、上記第3の符号化フレームに含まれ、第3の符号化フレームが画像コンテンツデータを含むか否かを示す第2のフラグとに基づいて決定するステップと、
上記第2の符号化フレームが画像コンテンツデータを含むときのみ、上記前方参照画像として、第2の符号化フレームに対応する復号化フレームを選択するステップと、
上記第3の符号化フレームが画像コンテンツデータを含むときのみ、上記後方参照画像として、第3の符号化フレームに対応する復号化フレームを選択するステップと、
選択された前方参照画像および選択された後方参照画像のうちの少なくとも1つを参照して予測画像を生成するステップと、
生成した予測画像を用いて、予測復号化により第1の符号化フレームを復号化するステップとを含む、
ことを特徴とする画像予測復号化方法。 In an image predictive decoding method for decoding a first encoded frame obtained by encoding an image,
Whether the second and third encoded frames used as the forward reference image and the backward reference image respectively include image content data is included in the second encoded frame, and the second encoded frame A first flag indicating whether or not includes image content data; a second flag included in the third encoded frame and indicating whether the third encoded frame includes image content data; Determining based on
Selecting a decoded frame corresponding to the second encoded frame as the forward reference image only when the second encoded frame includes image content data;
Selecting a decoded frame corresponding to the third encoded frame as the backward reference image only when the third encoded frame includes image content data;
Generating a predicted image with reference to at least one of the selected forward reference image and the selected backward reference image;
Decoding the first encoded frame by predictive decoding using the generated predicted image,
An image predictive decoding method characterized by the above.
上記画像は、サイズが可変である任意形状オブジェクトを含む、
ことを特徴とする画像予測復号化方法。 The image predictive decoding method according to claim 1, wherein:
The image includes an arbitrarily shaped object whose size is variable,
An image predictive decoding method characterized by the above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001048729A JP3776735B2 (en) | 1997-04-09 | 2001-02-23 | Image predictive decoding method, image predictive decoding device, image predictive encoding method, image predictive encoding device, and data storage medium |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9-90659 | 1997-04-09 | ||
JP9065997 | 1997-04-09 | ||
JP2001048729A JP3776735B2 (en) | 1997-04-09 | 2001-02-23 | Image predictive decoding method, image predictive decoding device, image predictive encoding method, image predictive encoding device, and data storage medium |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP09473998A Division JP3387820B2 (en) | 1997-04-09 | 1998-04-07 | Image prediction decoding apparatus and image prediction decoding method |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2001268581A JP2001268581A (en) | 2001-09-28 |
JP2001268581A5 true JP2001268581A5 (en) | 2005-09-02 |
JP3776735B2 JP3776735B2 (en) | 2006-05-17 |
Family
ID=26432116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001048729A Expired - Lifetime JP3776735B2 (en) | 1997-04-09 | 2001-02-23 | Image predictive decoding method, image predictive decoding device, image predictive encoding method, image predictive encoding device, and data storage medium |
Country Status (1)
Country | Link |
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JP (1) | JP3776735B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0216072B1 (en) | 2001-10-17 | 2018-09-25 | Panasonic Corp | moving figure decoding method and apparatus |
JP2004088722A (en) | 2002-03-04 | 2004-03-18 | Matsushita Electric Ind Co Ltd | Motion picture encoding method and motion picture decoding method |
HUE044616T2 (en) | 2002-04-19 | 2019-11-28 | Panasonic Ip Corp America | Motion vector calculating method |
JP2004007563A (en) | 2002-04-19 | 2004-01-08 | Matsushita Electric Ind Co Ltd | Method for encoding moving image and method for decoding moving image |
JP5972687B2 (en) * | 2012-07-02 | 2016-08-17 | 株式会社Nttドコモ | Moving picture predictive coding apparatus, moving picture predictive coding method, moving picture predictive coding program, moving picture predictive decoding apparatus, moving picture predictive decoding method, and moving picture predictive decoding program |
-
2001
- 2001-02-23 JP JP2001048729A patent/JP3776735B2/en not_active Expired - Lifetime
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