Abstract

This paper presents an efficient method to speed up High Efficiency Video Coding (HEVC) downsizing transcoding. Specifically, we focus on the coding unit (CU) size selection, one of the most computationally intensive processes in HEVC, to reduce the complexity of the transcoder. The proposed method utilizes the temporal correlation of depth levels among CUs and the continuity of the motion vector field in the precoded video to derive the most probable CU depth ranges and avoid the unnecessary exhaustive CU size search at certain depth levels. Experimental results show the proposed method can reduce the overall transcoding time by about 41% on average while maintaining the similar performance to that obtained by the cascaded re-encoding transcoder.

Original languageEnglish (US)
Title of host publication2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1286-1289
Number of pages4
ISBN (Electronic)9781479983919
DOIs
StatePublished - Jul 27 2015
EventIEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal
Duration: May 24 2015May 27 2015

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2015-July
ISSN (Print)0271-4310

Other

OtherIEEE International Symposium on Circuits and Systems, ISCAS 2015
Country/TerritoryPortugal
CityLisbon
Period5/24/155/27/15

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Efficient coding unit size selection for HEVC downsizing transcoding'. Together they form a unique fingerprint.

Cite this