Int J Performability Eng ›› 2017, Vol. 13 ›› Issue (7): 1030-1038.doi: 10.23940/ijpe.17.07.p4.10301038

• Original articles • Previous Articles     Next Articles

A Fast and Efficient Coding Algorithm for HEVC System based on Texture Analysis of Entropy Difference

Qiuwen Zhang, Kunqiang Huang*, Xiao Wang, and Yong Gan   

  1. College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China

Abstract: With the video display technique developing, High Efficiency Video Coding (HEVC) to optimize coding efficiency for video coder is proposed. However, the latest coding standard HEVC has a good performance. In the meantime, it introduces large computational complexity in mode decision process. In the coding process, the encoding mode of a coding block is selected in numbers candidate. Therefore, once a coding block in the sequences encoded as skip mode, coding time would be saved largely since the simplification of rate-distortion (RD) cost calculation. In this paper, a decision method of coding blocks (CBs) based on texture analysis of entropy is proposed. Even though a CB included in homogeneous regions in natural test video sequences, the entropy value between current and neighbouring reference coding blocks is computed to decide the CB could be encoded as skip mode. Early skip mode detection can omit unnecessary mode decision since it results in huge computational complexity for RD cost calculation in conventional method. After the detection process, the CBs would be encoded as skip mode directly. Extensive experiment concludes that our method has better performance for computational complexity compared to conventional coding method with a negligible loss.

Submitted on July 25, 2017; Revised on August 30, 2017; Accepted on September 15, 2017
References: 22