Parameter optimization for HEVC/H.265 encoder using multi-objective optimization technique

Abstract

High Efficiency Video Coding (HEVC/H.265) is the latest video coding standard proposed by the Joint Collaborative Team on Video Coding (JCT-VC). There are several parameters for HEVC/H.265 encoder that are used in video encoding. During video encoding single standard configuration file is used for all the videos that may not maintain the quality in all encoded videos because most of the videos having varying speed of moveable objects; so there is a need to optimize the encoder parameters for all the videos separately. The aim of proposed work is to optimize the encoder parameters for higher compression ratio and higher PSNR value for every video independently. Here, NSGA-II is used to find out the optimum parameters for the encoder that can provide good quality encoded videos. Six QCIF format videos having 176×144 resolutions, are used here. The experimental results show that different videos required different configuration files for good quality compression.