RU2005108921A - Способ предсказания блока с использованием усовершенствованного режима прямого предсказания - Google Patents
Способ предсказания блока с использованием усовершенствованного режима прямого предсказания Download PDFInfo
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- RU2005108921A RU2005108921A RU2005108921/09A RU2005108921A RU2005108921A RU 2005108921 A RU2005108921 A RU 2005108921A RU 2005108921/09 A RU2005108921/09 A RU 2005108921/09A RU 2005108921 A RU2005108921 A RU 2005108921A RU 2005108921 A RU2005108921 A RU 2005108921A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
Claims (8)
1. Способ предсказания блока двунаправленного предсказания движущегося изображения, содержащий получение первого и второго блоков с компенсацией движения путем использования первого и второго векторов движения, соответственно; и предсказание блока двунаправленного предсказания в текущем кадре путем использования первого блока с компенсацией движения, помноженного на первый коэффициент, и второго блока с компенсацией движения, помноженного на второй коэффициент, при этом каждый из указанных коэффициентов зависит от временного интервала между текущим кадром и опорным кадром.
2. Способ по п.1, в котором на операции предсказания предсказывают блок двунаправленного предсказания путем использования суммы первого блока с компенсацией движения, помноженного на первый коэффициент, и второго блока с компенсацией движения, помноженного на второй коэффициент.
3. Способ по п.1, в котором затем получают первый и второй векторы движения для блока двунаправленного предсказания.
4. Способ по п.1, в котором опорный кадр является первым или вторым опорным кадром.
5. Способ по п.4, в котором первый и второй блоки с компенсацией движения относятся к первому и второму опорным кадрам, соответственно.
6. Способ по п.1, в котором первый коэффициент уменьшается с увеличением временного интервала.
7. Способ по п.2, в котором блок двунаправленного предсказания предсказывают по следующему уравнению
где - предсказанное значение блока двунаправленного предсказания, Bf - первый блок с компенсацией движения, Вb - второй блок с компенсацией движения, TRD - временной интервал между первым опорным кадром и вторым опорным кадром, TRB - временной интервал между первым опорным кадром и текущим кадром и TRN - временной интервал между текущим кадром и опорным кадром, ближайшим к текущему кадру.
8. Способ по п.2, в котором блок двунаправленного предсказания предсказывают по следующему уравнению
где - предсказанное значение блока двунаправленного предсказания, Bf - первый блок с компенсацией движения, Вb - второй блок с компенсацией движения, TRD - временной интервал между первым опорным кадром и вторым опорным кадром, и TRB - временной интервал между текущим кадром и первым опорным кадром.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR19262/2002 | 2002-04-09 | ||
KR20020019262 | 2002-04-09 | ||
KR72862/2002 | 2002-11-21 | ||
KR10-2002-0072862A KR100508798B1 (ko) | 2002-04-09 | 2002-11-21 | 쌍방향 예측 블록 예측 방법 |
Related Parent Applications (1)
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RU2003100072/09A Division RU2258320C2 (ru) | 2002-04-09 | 2003-01-09 | Способ предсказания блока с использованием усовершенствованного режима прямого предсказания |
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RU2005108921A true RU2005108921A (ru) | 2006-09-10 |
RU2297109C2 RU2297109C2 (ru) | 2007-04-10 |
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RU2003100072/09A RU2258320C2 (ru) | 2002-04-09 | 2003-01-09 | Способ предсказания блока с использованием усовершенствованного режима прямого предсказания |
RU2005108921/09A RU2297109C2 (ru) | 2002-04-09 | 2005-03-29 | Способ предсказания блока с использованием усовершенствованного режима прямого предсказания |
RU2005108920/09A RU2333616C2 (ru) | 2002-04-09 | 2005-03-29 | Способ предсказания блока с использованием усовершенствованного режима прямого предсказания |
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RU2003100072/09A RU2258320C2 (ru) | 2002-04-09 | 2003-01-09 | Способ предсказания блока с использованием усовершенствованного режима прямого предсказания |
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RU2005108920/09A RU2333616C2 (ru) | 2002-04-09 | 2005-03-29 | Способ предсказания блока с использованием усовершенствованного режима прямого предсказания |
Country Status (11)
Country | Link |
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US (8) | US8548053B2 (ru) |
EP (11) | EP1679904B1 (ru) |
JP (11) | JP4435480B2 (ru) |
KR (1) | KR100508798B1 (ru) |
CN (2) | CN1233175C (ru) |
DE (4) | DE10362305B4 (ru) |
GB (2) | GB2408889B (ru) |
HK (1) | HK1073043A1 (ru) |
NL (1) | NL1022353C2 (ru) |
RU (3) | RU2258320C2 (ru) |
TW (3) | TWI259412B (ru) |
Cited By (1)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2472305C2 (ru) * | 2007-02-23 | 2013-01-10 | Ниппон Телеграф Энд Телефон Корпорейшн | Способ кодирования видео и способ декодирования видео, устройства для этого, программы для этого и носители хранения, на которых хранятся программы |
US8472522B2 (en) | 2007-02-23 | 2013-06-25 | Nippon Telegraph And Telephone Corporation | Video encoding method and decoding method, apparatuses therefor, programs therefor, and storage media which store the programs |
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