WO2013106988A1 - Procédés et appareils de représentation de profondeur de transformée de résidus - Google Patents

Procédés et appareils de représentation de profondeur de transformée de résidus Download PDF

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Publication number
WO2013106988A1
WO2013106988A1 PCT/CN2012/070430 CN2012070430W WO2013106988A1 WO 2013106988 A1 WO2013106988 A1 WO 2013106988A1 CN 2012070430 W CN2012070430 W CN 2012070430W WO 2013106988 A1 WO2013106988 A1 WO 2013106988A1
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WO
WIPO (PCT)
Prior art keywords
transform
depth
hierarchy
flag
max
Prior art date
Application number
PCT/CN2012/070430
Other languages
English (en)
Inventor
Jicheng An
Xin Zhao
Xun Guo
Shaw-Min Lei
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/CN2012/070430 priority Critical patent/WO2013106988A1/fr
Publication of WO2013106988A1 publication Critical patent/WO2013106988A1/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
    • H04N19/10—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
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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

Definitions

  • the invention relates generally to video processing.
  • the present invention relates to methods and apparatuses for residue transform depth representation for Y, U, and V components in High Efficiency Video Coding (HEVC).
  • HEVC High Efficiency Video Coding
  • HEVC is an advanced video coding system being developed under the Joint Collaborative Team on Video Coding (JCT-VC) group of video coding experts from ITU-T Study Group.
  • JCT-VC Joint Collaborative Team on Video Coding
  • the residue transform depth is shared between luma (Y) and chroma (U and V) components.
  • a syntax element split_transform_flag is used to indicate the transform depth increase for all Y, U, and V components as shown in Fig. 1.
  • the TU split flag and cbf flag coding is shown in Fig. 3.
  • a syntax element max_transform_hierarchy_depth_inter is used to indicate the maximum transform depth in a sequence for all Y, U, and V components for inter case
  • a syntax element max_transform_hierarchy_depth_intra is used to indicate the maximum transform depth in a sequence for all Y, U, and V components for intra case.
  • three separate syntax elements split_transform_Y_flag, split_transform_U_flag, and split_transform_V_flag instead of one shared split_transform_flag, are used to indicate the transform depth increase for Y, U, and V components respectively as shown in Fig. 2.
  • the TU split flag and cbf flag coding for Y component is shown in Fig. 4.
  • the TU split flag and cbf flag coding for U or V component is shown in Fig. 5.
  • Fig. 1 is a diagram illustrating the TU split in current HEVC.
  • Fig. 2 is a diagram illustrating the TU split in the proposed method.
  • Fig. 3 is a flowchart illustrating the coding of TU split flag and cbf flag in current HEVC.
  • Fig. 4 is a flowchart illustrating the coding of TU split flag and cbf flag for Y component in the proposed method.
  • Fig. 5 is a flowchart illustrating the coding of TU split flag and cbf flag for Y or V component in the proposed method.
  • Y, U, and V components are not forced to have the same residual transform depth.
  • three separate syntax elements split_transform_Y_flag, split_transform_U_flag, and split_transform_V_flag instead of one shared split_transform_flag, are used to indicate the transform depth increase for Y, U, and V components respectively.
  • two separate syntax elements split_transform_luma_flag and split_transform_chroma_flag instead of one shared split_transform_flag are used to indicate the transform depth increase for luma and chroma components respectively.
  • an embodiment of the present invention can be a circuit integrated into a video compression chip or program codes integrated into video compression software to perform the processing described herein.
  • An embodiment of the present invention may also be program codes to be executed on a Digital Signal Processor (DSP) to perform the processing described herein.
  • DSP Digital Signal Processor
  • the invention may also involve a number of functions to be performed by a computer processor, a digital signal processor, a microprocessor, or field programmable gate array (FPGA).
  • processors can be configured to perform particular tasks according to the invention, by executing machine-readable software code or firmware code that defines the particular methods embodied by the invention.
  • the software code or firmware codes may be developed in different programming languages and different format or style.
  • the software code may also be compiled for different target platform.
  • different code formats, styles and languages of software codes and other means of configuring code to perform the tasks in accordance with the invention will not depart from the spirit and scope of the invention.

Landscapes

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

Abstract

L'invention concerne un procédé de représentation de profondeur de transformée de résidus pour les composantes Y, U, et V. Les composantes Y, U, et V ne sont pas contraintes d'avoir la même profondeur de transformée de résidus.
PCT/CN2012/070430 2012-01-16 2012-01-16 Procédés et appareils de représentation de profondeur de transformée de résidus WO2013106988A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/070430 WO2013106988A1 (fr) 2012-01-16 2012-01-16 Procédés et appareils de représentation de profondeur de transformée de résidus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/070430 WO2013106988A1 (fr) 2012-01-16 2012-01-16 Procédés et appareils de représentation de profondeur de transformée de résidus

Publications (1)

Publication Number Publication Date
WO2013106988A1 true WO2013106988A1 (fr) 2013-07-25

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PCT/CN2012/070430 WO2013106988A1 (fr) 2012-01-16 2012-01-16 Procédés et appareils de représentation de profondeur de transformée de résidus

Country Status (1)

Country Link
WO (1) WO2013106988A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137736A1 (fr) * 2014-03-11 2015-09-17 삼성전자 주식회사 Procédé et appareil de transmission de mode de prédiction d'image de profondeur pour coder et décoder une vidéo inter-couche
WO2016037363A1 (fr) * 2014-09-12 2016-03-17 Mediatek Singapore Pte. Ltd. Procédés de représentation arborescente de transformée résiduelle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101404773A (zh) * 2008-11-25 2009-04-08 江苏大学 一种基于dsp的图像编码方法
CN101577828A (zh) * 2008-04-16 2009-11-11 英特尔公司 用于比特深度可分级的视频编解码器的色调映射
CN102067609A (zh) * 2008-06-12 2011-05-18 汤姆森特许公司 利用降低的比特深度更新模式和降低的色度采样更新模式进行视频编码和解码的方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101577828A (zh) * 2008-04-16 2009-11-11 英特尔公司 用于比特深度可分级的视频编解码器的色调映射
CN102067609A (zh) * 2008-06-12 2011-05-18 汤姆森特许公司 利用降低的比特深度更新模式和降低的色度采样更新模式进行视频编码和解码的方法及装置
CN101404773A (zh) * 2008-11-25 2009-04-08 江苏大学 一种基于dsp的图像编码方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137736A1 (fr) * 2014-03-11 2015-09-17 삼성전자 주식회사 Procédé et appareil de transmission de mode de prédiction d'image de profondeur pour coder et décoder une vidéo inter-couche
WO2016037363A1 (fr) * 2014-09-12 2016-03-17 Mediatek Singapore Pte. Ltd. Procédés de représentation arborescente de transformée résiduelle

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