WO2016197392A1 - Améliorations apportées à des prédictions d'indices non-locales - Google Patents

Améliorations apportées à des prédictions d'indices non-locales Download PDF

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Publication number
WO2016197392A1
WO2016197392A1 PCT/CN2015/081374 CN2015081374W WO2016197392A1 WO 2016197392 A1 WO2016197392 A1 WO 2016197392A1 CN 2015081374 W CN2015081374 W CN 2015081374W WO 2016197392 A1 WO2016197392 A1 WO 2016197392A1
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WO
WIPO (PCT)
Prior art keywords
index
coded
local index
local
current
Prior art date
Application number
PCT/CN2015/081374
Other languages
English (en)
Inventor
Weijia Zhu
Kai Zhang
Xianguo Zhang
Original Assignee
Mediatek Singapore Pte. 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
Application filed by Mediatek Singapore Pte. Ltd. filed Critical Mediatek Singapore Pte. Ltd.
Priority to PCT/CN2015/081374 priority Critical patent/WO2016197392A1/fr
Priority to CN201680010328.9A priority patent/CN107409227B/zh
Priority to US15/556,389 priority patent/US10148981B2/en
Priority to EP16767720.2A priority patent/EP3266212A4/fr
Priority to PCT/CN2016/076726 priority patent/WO2016150343A1/fr
Priority to KR1020177026536A priority patent/KR102051197B1/ko
Publication of WO2016197392A1 publication Critical patent/WO2016197392A1/fr

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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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/93—Run-length coding
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/186—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 colour or a chrominance component

Definitions

  • Fig. 4 is a diagram illustrating non-local index prediction method.
  • the reconstructed indices with the coded run length can be obtained by copying from the indices in the reference block.
  • each pixel can choose copy-left method, copy-above method, and non-local index prediction method.
  • Several flags can be coded to represent the chosen result.
  • a decoder can infer the chosen result for the current pixel implicitly.
  • One or more bits are coded for each run to indicate whether the coded run is the last run of the current block.
  • index redundancy removal cannot be performed for those samples. To solve this problem, coding one or more additional refinement bits is performed and index redundancy removal can be always performed for all samples.
  • the parsed out index is equal to MAX_INDEX-1
  • one additional refinement bit should be parsed. If the refinement bit is equal to 1, the reconstructed index is MAX_INDEX-1. Otherwise, the reconstructed index is MAX_INDEX-2.

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

Abstract

La présente invention concerne plusieurs améliorations apportées à des procédés de prédiction d'indices non locale. En utilisant ces améliorations, la performance d'un procédé de prédiction d'indices non locale est améliorée.
PCT/CN2015/081374 2015-03-20 2015-06-12 Améliorations apportées à des prédictions d'indices non-locales WO2016197392A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/CN2015/081374 WO2016197392A1 (fr) 2015-06-12 2015-06-12 Améliorations apportées à des prédictions d'indices non-locales
CN201680010328.9A CN107409227B (zh) 2015-03-20 2016-03-18 视频编解码方法及装置
US15/556,389 US10148981B2 (en) 2015-03-20 2016-03-18 Methods of palette coding with inter-prediction in video coding
EP16767720.2A EP3266212A4 (fr) 2015-03-20 2016-03-18 Procédés de codage palette avec inter-prédiction, en codage vidéo
PCT/CN2016/076726 WO2016150343A1 (fr) 2015-03-20 2016-03-18 Procédés de codage palette avec inter-prédiction, en codage vidéo
KR1020177026536A KR102051197B1 (ko) 2015-03-20 2016-03-18 비디오 코딩에서의 인터 예측으로의 팔레트 코딩 방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/081374 WO2016197392A1 (fr) 2015-06-12 2015-06-12 Améliorations apportées à des prédictions d'indices non-locales

Publications (1)

Publication Number Publication Date
WO2016197392A1 true WO2016197392A1 (fr) 2016-12-15

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PCT/CN2015/081374 WO2016197392A1 (fr) 2015-03-20 2015-06-12 Améliorations apportées à des prédictions d'indices non-locales

Country Status (1)

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WO (1) WO2016197392A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015077720A1 (fr) * 2013-11-22 2015-05-28 Futurewei Technologies, Inc. Solution avancée pour le codage du contenu d'un d'écran

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015077720A1 (fr) * 2013-11-22 2015-05-28 Futurewei Technologies, Inc. Solution avancée pour le codage du contenu d'un d'écran

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LIWEI, GUO ET AL.: "Non-RCE3: Modified Palette Mode for Screen Content Coding", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC)OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 14TH MEETING JCTVC-N0249, 2 August 2013 (2013-08-02), Vienna, AT ., pages 1, XP030114767 *
LIWEI, GUO ET AL.: "RCE3: Results of Test 3.1 on Palette Mode for Screen Content Coding", JOINT COLLABORATIVE TENM ON VIDEO CODING (JCT-VC)OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WOG 77 14TH MEETING JCTVC-N0247, 2 August 2013 (2013-08-02), Vienna, AT ., XP030114764 *

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