Home // VISUAL 2016, The First International Conference on Applications and Systems of Visual Paradigms // View article
Authors:
Ilseung Kim
Jechang Jeong
Keywords: HEVC; Screen content coding(SCC); Intra Block copy (IBC); Hash
Abstract:
An efficient algorithm is proposed not only to reduce the computation cost of the hash-based intra block copy (IBC), but also to achieve the Bjontegaard delta bit rate (BDBR) gain for High Efficiency Video Coding standard (HEVC) screen content coding(SCC). Recently, the HEVC Screen Content Coding Draft 6 was published including several new tools. Among those, hash-based intra block copy shows the high coding gain but it has a massive computational complexity even though it is adopted as a fast algorithm for global block search for IBC mode. The proposed algorithm suggests the effective way to calculate the lower bound for rate-distortion (RD) cost when performing the hash-based IBC process and to eliminate the impossible candidates earlier. Experimental results show that about 50% on the average and up to 86.80% of the search points can be early terminated as well as 0.21% on the average BDBR saving can be achieved compared to HM-16.8+SCM-6.1.
Pages: 50 to 54
Copyright: Copyright (c) IARIA, 2016
Publication date: November 13, 2016
Published in: conference
ISSN: 2519-8645
ISBN: 978-1-61208-520-3
Location: Barcelona, Spain
Dates: from November 13, 2016 to November 17, 2016