ES2459890R1 - Intra prediction method, and encoder and decoder that use it - Google Patents

Intra prediction method, and encoder and decoder that use it Download PDF

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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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Spain
Prior art keywords
prediction
intra
prediction mode
decoder
encoder
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Granted
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ES201390088A
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Spanish (es)
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ES2459890B2 (en
ES2459890A2 (en
Inventor
Joonyoung Park
Seungwook Park
Jaehyun Lim
Jungsun KIM
Younghee CHOI
Byeongmoon Jeon
Yongjoon Jeon
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from PCT/KR2012/003093 external-priority patent/WO2012148138A2/en
Publication of ES2459890A2 publication Critical patent/ES2459890A2/en
Publication of ES2459890R1 publication Critical patent/ES2459890R1/en
Application granted granted Critical
Publication of ES2459890B2 publication Critical patent/ES2459890B2/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/24Systems 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.

ES201390088A 2011-04-25 2012-04-20 Intra prediction method, and encoder and decoder that use it Active ES2459890B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
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)

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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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190015216A (en) * 2016-05-05 2019-02-13 브이아이디 스케일, 인크. Intra-directional representation based on control points for intra coding

Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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Publication number Publication date
ES2459890B2 (en) 2015-06-05
ES2459890A2 (en) 2014-05-12

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