WO2006132509A1 - Procede de codage video fonde sur des couches multiples, procede de decodage, codeur video, et decodeur video utilisant une prevision de lissage - Google Patents

Procede de codage video fonde sur des couches multiples, procede de decodage, codeur video, et decodeur video utilisant une prevision de lissage Download PDF

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Publication number
WO2006132509A1
WO2006132509A1 PCT/KR2006/002205 KR2006002205W WO2006132509A1 WO 2006132509 A1 WO2006132509 A1 WO 2006132509A1 KR 2006002205 W KR2006002205 W KR 2006002205W WO 2006132509 A1 WO2006132509 A1 WO 2006132509A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
current picture
picture
smoothing
multilayer
Prior art date
Application number
PCT/KR2006/002205
Other languages
English (en)
Inventor
Woo-Jin Han
Original Assignee
Samsung Electronics Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020050073835A external-priority patent/KR100703788B1/ko
Application filed by Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Priority to JP2008512224A priority Critical patent/JP2008541653A/ja
Priority to EP06768807A priority patent/EP1889487A1/fr
Publication of WO2006132509A1 publication Critical patent/WO2006132509A1/fr

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Classifications

    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/187—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a scalable video layer
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

Definitions

  • JVT Joint Video Team
  • MPEG Moving Picture Experts Group
  • ITU International Telecommunication Union
  • the present invention provides a multilayer-based video encoding method, including the steps of (a) generating an inter prediction block for an arbitrary block of a current picture; (b) smoothing the generated inter prediction block using a smoothing filter; (c) calculating a difference between the block of the current picture and a block generated by the smoothing; and (d) encoding a difference.
  • FlG. 7 is a block diagram showing the construction of a video encoder according to an exemplary embodiment of the present invention.
  • the inter prediction block 13 for the base block 10 is generated using the base block 10, and blocks 11 and 12 in the neighboring reference pictures (forward reference picture and backward reference picture) of the lower layer, which correspond to the base block 10 based on motion vectors. Thereafter, a difference (corresponding to R in Equation 5) between the base block 10 and the prediction
  • FIGS. 5 and 6 are diagrams illustrating the application examples of the smoothing filter, and show examples of applying the smoothing filter to the vertical boundary and lateral boundary of sub-blocks, each having a 4x4 size.
  • boundary pixels x(n-l) and x(n) can be smoothened in a form in which the boundary pixels and their neighboring pixels are linearly coupled.
  • An inverse transform unit 320 performs dequantization on the results of the de- quantization.
  • the inverse transform process is performed in a reverse order to that of the transform process of the encoder and, specifically, may employ inverse DCT, inverse wavelet transform or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

L'invention concerne un procédé et un appareil pour diminuer des artefacts de blocs dans un codage vidéo fondé sur des couches multiples. Un procédé de codage vidéo fondé sur des couches multiples consiste notamment à calculer une différence entre un bloc de prévision intermode pour le bloc d'une image de couche inférieure, qui correspond à un bloc arbitraire d'une image courante, et le bloc de l'image de la couche inférieure, à ajouter la différence calculée à un bloc de prévision intermode pour le bloc de l'image courante, à lisser un bloc, généré par l'addition, au moyen d'un filtre de lissage, et à coder une différence entre le bloc de l'image courante et un bloc généré par le lissage.
PCT/KR2006/002205 2005-06-10 2006-06-09 Procede de codage video fonde sur des couches multiples, procede de decodage, codeur video, et decodeur video utilisant une prevision de lissage WO2006132509A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008512224A JP2008541653A (ja) 2005-06-10 2006-06-09 スムージング予測を用いた多階層基盤のビデオエンコーディング方法、デコーディング方法、ビデオエンコーダ及びビデオデコーダ
EP06768807A EP1889487A1 (fr) 2005-06-10 2006-06-09 Procede de codage video fonde sur des couches multiples, procede de decodage, codeur video, et decodeur video utilisant une prevision de lissage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US68908705P 2005-06-10 2005-06-10
US60/689,087 2005-06-10
KR1020050073835A KR100703788B1 (ko) 2005-06-10 2005-08-11 스무딩 예측을 이용한 다계층 기반의 비디오 인코딩 방법,디코딩 방법, 비디오 인코더 및 비디오 디코더
KR10-2005-0073835 2005-08-11

Publications (1)

Publication Number Publication Date
WO2006132509A1 true WO2006132509A1 (fr) 2006-12-14

Family

ID=37498674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/002205 WO2006132509A1 (fr) 2005-06-10 2006-06-09 Procede de codage video fonde sur des couches multiples, procede de decodage, codeur video, et decodeur video utilisant une prevision de lissage

Country Status (2)

Country Link
EP (1) EP1889487A1 (fr)
WO (1) WO2006132509A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007040369A1 (fr) 2005-10-05 2007-04-12 Lg Electronics Inc. Procede de decodage et de codage d'un signal video
JP2010518674A (ja) * 2007-02-05 2010-05-27 サムスン エレクトロニクス カンパニー リミテッド インター予測符号化／復号化方法及び装置
US7773675B2 (en) 2005-10-05 2010-08-10 Lg Electronics Inc. Method for decoding a video signal using a quality base reference picture
WO2013184810A1 (fr) * 2012-06-08 2013-12-12 Qualcomm Incorporated Prédiction de texture bi-couche pour un codage vidéo

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
OHM J.-R.: "Advances in scalable video coding", PROC. OF THE IEEE, vol. 93, no. 1, January 2005 (2005-01-01), pages 42 - 56, XP011123852 *
REICHEL J., SCHWARZ H., WIEN M.: "Joint Scalable Video Model JSVM-2", JVT-O202, 15TH JVT MEETING, BUSAN, KOREA, 16 April 2005 (2005-04-16) - 22 April 2005 (2005-04-22), XP002384223 *
SCHWARZ H., MARPE D., WIEGAND T.: "Further results on constrained inter-layer prediction", JVT-O073, 15TH JVT MEETING, BUSAN, KOREA, 16 April 2005 (2005-04-16) - 22 April 2005 (2005-04-22), XP008123806 *
YUWEN HE ET AL.: "Improved fine granular scalable coding with inter-layer prediction", PROC. OF DATA COMPRESSION CONFERENCE, 2 April 2002 (2002-04-02) - 4 April 2002 (2002-04-04), pages 172 - 181, XP003005024 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007040369A1 (fr) 2005-10-05 2007-04-12 Lg Electronics Inc. Procede de decodage et de codage d'un signal video
EP1941735A1 (fr) * 2005-10-05 2008-07-09 LG Electronics Inc. Procede de decodage et de codage d'un signal video
EP1941735A4 (fr) * 2005-10-05 2010-03-03 Lg Electronics Inc Procede de decodage et de codage d'un signal video
US7773675B2 (en) 2005-10-05 2010-08-10 Lg Electronics Inc. Method for decoding a video signal using a quality base reference picture
US7869501B2 (en) 2005-10-05 2011-01-11 Lg Electronics Inc. Method for decoding a video signal to mark a picture as a reference picture
US8422551B2 (en) 2005-10-05 2013-04-16 Lg Electronics Inc. Method and apparatus for managing a reference picture
US8498337B2 (en) 2005-10-05 2013-07-30 Lg Electronics Inc. Method for decoding and encoding a video signal
JP2010518674A (ja) * 2007-02-05 2010-05-27 サムスン エレクトロニクス カンパニー リミテッド インター予測符号化／復号化方法及び装置
WO2013184810A1 (fr) * 2012-06-08 2013-12-12 Qualcomm Incorporated Prédiction de texture bi-couche pour un codage vidéo

Also Published As

Publication number Publication date
EP1889487A1 (fr) 2008-02-20

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