Guilherme Povala, D. Silveira, Lívia Amaral, B. Zatt, M. Porto, L. Agostini
{"title":"An efficient reference frame compression approach for video coding systems","authors":"Guilherme Povala, D. Silveira, Lívia Amaral, B. Zatt, M. Porto, L. Agostini","doi":"10.1109/LASCAS.2014.6820296","DOIUrl":null,"url":null,"abstract":"This paper presents an efficient solution for external memory bandwidth reduction focusing in the state-of-art video coding standards, like H.264/AVC and HEVC. The proposed approach is based in reference frame compression using a differential coding and a hardware-efficiently adaptation of the traditional Huffman algorithm, besides, it is a lossless solution and fully complied to state-of-art video coding standards. This solution is entitled DRFVLC (Differential Reference Frame Variable-Length Coder) and it applies an inter-block differential coding to concentrate the values near to zero, and also, it uses one static Huffman table to avoid the cost of the on-the-fly Huffman statistical analysis. The use of DRFVLC reached an average compression rate higher than 46% for the evaluated video sequences, with computational cost of a single differential coding and a VLC, which means the solution is not a bottleneck of the video coding system.","PeriodicalId":235336,"journal":{"name":"2014 IEEE 5th Latin American Symposium on Circuits and Systems","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE 5th Latin American Symposium on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LASCAS.2014.6820296","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
This paper presents an efficient solution for external memory bandwidth reduction focusing in the state-of-art video coding standards, like H.264/AVC and HEVC. The proposed approach is based in reference frame compression using a differential coding and a hardware-efficiently adaptation of the traditional Huffman algorithm, besides, it is a lossless solution and fully complied to state-of-art video coding standards. This solution is entitled DRFVLC (Differential Reference Frame Variable-Length Coder) and it applies an inter-block differential coding to concentrate the values near to zero, and also, it uses one static Huffman table to avoid the cost of the on-the-fly Huffman statistical analysis. The use of DRFVLC reached an average compression rate higher than 46% for the evaluated video sequences, with computational cost of a single differential coding and a VLC, which means the solution is not a bottleneck of the video coding system.