A novel angle-restricted test zone search algorithm for performance improvement of HEVC

Niras C. Vayalil, Manoranjan Paul, Yinan Kong

Research output: Book chapter/Published conference paperConference paperpeer-review

Abstract

High Efficiency Video Coding (HEVC) is the latest video encoding standard and has approximately 50% bit-rate saving compared to its predecessor. However, the motion estimation (ME) is considerably complicated by the incorporation of varieties of partitioning modes and a quad-tree based coding structure, and also by increasing the basic coding unit size by a factor of 16. Motion estimation is the most complex task in the video encoding process, consuming 60-80% of overall encoding time. This paper proposes a new algorithm, angle-restricted test zone (ARTZ) for motion estimation which is based on a test zone (TZ) search, exploiting directional probabilities of motion vector search. In our experiments, this proposal achieves a time saving in motion estimation of about 20% to 50% compared to a TZ search in the HEVC test model (HM) implementation for UHD videos without significant degradation of PSNR.
Original languageEnglish
Title of host publication2017 IEEE International Conference on image processing, ICIP, Proceedings, 17–20 September 2017 China National Convention Center Beijing, China
Place of PublicationUnited States
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages6-10
Number of pages5
ISBN (Electronic)9781509021758
ISBN (Print)9781509021765
DOIs
Publication statusPublished - 22 Feb 2018
Event2017 24th IEEE International Conference on Image Processing: ICIP 2017 - China National Convention Center , Beijing, China
Duration: 17 Sep 201720 Sep 2017
http://2017.ieeeicip.org/ (Conference website)

Conference

Conference2017 24th IEEE International Conference on Image Processing
Country/TerritoryChina
CityBeijing
Period17/09/1720/09/17
OtherThe 24th IEEE International Conference on Image Processing (ICIP) will be held in the China National Conventional Center, Beijing, China, on September 17-20, 2017. ICIP is the world' largest and most comprehensive technical conference focused on image and video processing and computer vision. The conference will feature world-class speakers, tutorials, exhibits, and a vision technology showcase.
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