ES2459890R1 - Intra prediction method, and encoder and decoder that use it - Google Patents
Intra prediction method, and encoder and decoder that use it Download PDFInfo
- Publication number
- ES2459890R1 ES2459890R1 ES201390088A ES201390088A ES2459890R1 ES 2459890 R1 ES2459890 R1 ES 2459890R1 ES 201390088 A ES201390088 A ES 201390088A ES 201390088 A ES201390088 A ES 201390088A ES 2459890 R1 ES2459890 R1 ES 2459890R1
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- prediction
- intra
- prediction mode
- decoder
- encoder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
La presente invención se refiere a un método de predicción intra y a un codificador y descodificador que lo usan. El método de predicción intra según una realización de la presente invención incluye los pasos de: derivar un modo de predicción de un bloque actual; y generar un bloque de predicción con respecto al bloque actual en base al modo de predicción del bloque actual. Cuando el modo de predicción del bloque actual es un modo de predicción intra-angular, los valores de las muestras de límite de entre las muestras de límite izquierdo y las muestras de límite superior de la predicción bloque, que no están colocadas en una dirección de predicción del modo de predicción intra-angular, se derivan en base a muestras de referencia colocadas en la dirección de predicción del modo de predicción intra-angular, y en base a las muestras de referencia adyacentes.The present invention relates to an intra prediction method and an encoder and decoder that use it. The intra prediction method according to an embodiment of the present invention includes the steps of: deriving a prediction mode from a current block; and generate a prediction block with respect to the current block based on the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, the values of the limit samples between the left limit samples and the upper limit samples of the block prediction, which are not placed in a direction of Intra-angular prediction mode prediction, are derived based on reference samples placed in the prediction direction of the intra-angular prediction mode, and based on adjacent reference samples.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201161047891P | 2011-04-25 | 2011-04-25 | |
US61/47891 | 2011-04-25 | ||
PCT/KR2012/003093 WO2012148138A2 (en) | 2011-04-25 | 2012-04-20 | Intra-prediction method, and encoder and decoder using same |
Publications (3)
Publication Number | Publication Date |
---|---|
ES2459890A2 ES2459890A2 (en) | 2014-05-12 |
ES2459890R1 true ES2459890R1 (en) | 2014-12-09 |
ES2459890B2 ES2459890B2 (en) | 2015-06-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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ES201390088A Active ES2459890B2 (en) | 2011-04-25 | 2012-04-20 | Intra prediction method, and encoder and decoder that use it |
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ES (1) | ES2459890B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20190015216A (en) * | 2016-05-05 | 2019-02-13 | 브이아이디 스케일, 인크. | Intra-directional representation based on control points for intra coding |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070133891A1 (en) * | 2005-12-12 | 2007-06-14 | Samsung Electronics Co., Ltd. | Method and device for intra prediction coding and decoding of image |
US20090110070A1 (en) * | 2007-10-30 | 2009-04-30 | Masashi Takahashi | Image encoding device and encoding method, and image decoding device and decoding method |
US20090225834A1 (en) * | 2008-03-05 | 2009-09-10 | Samsung Electronics Co., Ltd. | Method and apparatus for image intra prediction |
US20090296812A1 (en) * | 2008-05-28 | 2009-12-03 | Korea Polytechnic University Industry Academic Cooperation Foundation | Fast encoding method and system using adaptive intra prediction |
US20110038414A1 (en) * | 2009-08-17 | 2011-02-17 | Samsung Electronics Co., Ltd. | Method and apparatus for encoding video, and method and apparatus for decoding video |
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2012
- 2012-04-20 ES ES201390088A patent/ES2459890B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070133891A1 (en) * | 2005-12-12 | 2007-06-14 | Samsung Electronics Co., Ltd. | Method and device for intra prediction coding and decoding of image |
US20090110070A1 (en) * | 2007-10-30 | 2009-04-30 | Masashi Takahashi | Image encoding device and encoding method, and image decoding device and decoding method |
US20090225834A1 (en) * | 2008-03-05 | 2009-09-10 | Samsung Electronics Co., Ltd. | Method and apparatus for image intra prediction |
US20090296812A1 (en) * | 2008-05-28 | 2009-12-03 | Korea Polytechnic University Industry Academic Cooperation Foundation | Fast encoding method and system using adaptive intra prediction |
US20110038414A1 (en) * | 2009-08-17 | 2011-02-17 | Samsung Electronics Co., Ltd. | Method and apparatus for encoding video, and method and apparatus for decoding video |
Also Published As
Publication number | Publication date |
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ES2459890B2 (en) | 2015-06-05 |
ES2459890A2 (en) | 2014-05-12 |
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