Scalable Intra Coding Optimization for Video Coding

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jiaqi Zhang
  • Chuanmin Jia
  • Shanshe Wang
  • Siwei Ma
  • Wen Gao

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)7092-7106
Journal / PublicationIEEE Transactions on Circuits and Systems for Video Technology
Volume32
Issue number10
Online published11 May 2022
Publication statusPublished - Oct 2022

Abstract

Flexible block partition and newly adopted intra coding tools bring significant performance improvement for next generation video coding, and meanwhile introduce non-negligible encoding complexity increment. This paper presents a scalable intra coding optimization (SICO) scheme for the third generation of audio video coding standard (AVS3). The complexity distribution and inheriting relationship among different partitioning, as well as intra prediction modes, are systematically analyzed. Subsequently, low-complexity algorithms are proposed, which could early exclude unlikely coding modes safely. In particular, a data-driven binary classifier is elegantly trained for the determination of coding unit partitioning. Moreover, the preliminary coding information can be exhaustively utilized for the mode decision in a low-cost manner. The proposed method provides scalable intra coding optimizing solutions, which is eligible to cater to various application scenarios. Experimental results show that the proposed method could achieve a wide range of encoding complexity reduction from 18% to 76% with moderate compression performance loss. One implementation of the proposed method has been adopted to the AVS3 reference software.

Research Area(s)

  • AVS3, block partition, Complexity theory, Electronic mail, Encoding, inherited information, intra coding optimization, Optimization, Standards, Transforms, Urban areas

Citation Format(s)

Scalable Intra Coding Optimization for Video Coding. / Zhang, Jiaqi; Wang, Meng; Jia, Chuanmin et al.

In: IEEE Transactions on Circuits and Systems for Video Technology, Vol. 32, No. 10, 10.2022, p. 7092-7106.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review