Paper Info
Title
Efficient biprediction decision scheme for fast high efficiency video coding encoding.
Abstract
An efficient biprediction decision scheme of high efficiency video coding (HEVC) is proposed for fastencoding applications. For low-delay video applications, bidirectional prediction can be used to increase compression performance efficiently with previous reference frames. However, at the same time, the computational complexity of the HEVC encoder is significantly increased due to the additional biprediction search. Although a some research has attempted to reduce this complexity, whether the prediction is strongly related to both motion complexity and prediction modes in a coding unit has not yet been investigated. A method that avoids most compression-inefficient search points is proposed so that the computational complexity of the motion estimation process can be dramatically decreased. To determine if biprediction is critical, the proposed method exploits the stochastic correlation of the context of prediction units (PUs): the direction of a PU and the accuracy of a motion vector. Through experimental results, the proposed method showed that the time complexity of biprediction can be reduced to 30% on average, outperforming existing methods in view of encoding time, number of function calls, and memory access. (C) 2016 SPIE and IS&T
Year
DOI
Venue
2016
10.1117/1.JEI.25.6.063007
JOURNAL OF ELECTRONIC IMAGING
Keywords
Field
DocType
high efficiency video coding,encoder complexity,biprediction search,bidirectional motion estimation
Computer vision,Coding tree unit,Computer science,Multiview Video Coding,Coding (social sciences),Artificial intelligence,Smacker video,Standardization,Scalable Video Coding,Encoding (memory),Context-adaptive binary arithmetic coding
Journal
Volume
Issue
ISSN
25
6
1017-9909
Citations 
PageRank 
References 
1
0.39
0
Authors
5
Name
Order
Citations
PageRank
Sanghyo Park123.14
Seung Ho Lee2143.54
Euee S. Jang34015.77
dongsan jun4142.45
Jungwon Kang5155.32