计算机工程与应用2016，Vol.52Issue(24)：57-61,74,6.DOI:10.3778/j.issn.1002-8331.1602-0002
基于随机森林的AVS-P10开环编码质量优化算法
Encoding quality optimization method for open-loop mode selection of AVS-P10 based on random forest
摘要
Abstract
AVS-P10 is Chinese first mobile audio codec standard. To solve the problem of low quality because of low accuracy in open-loop mode selection of the standard, this paper proposes an open-loop mode selection method based on random forest which regards closed-loop mode choice as the benchmark to improve mode selection accuracy of open-loop mode. To keep low computational complexity and high accuracy, the scale of random forest is reduced by two-step feature selection algorithm. Both of the results of objective and subjective testing show that the accuracy rate of mode selection increases dramatically. The quality of audio encoded by the open-loop selection using this method is much better than that by open-loop selection of AVS-P10 and is almost same as that by close-loop selection.关键词
随机森林/先进音视频编码标准第10部分(AVS-P10)/模式选择/特征选择/信号分类Key words
random forest/Audio Video coding Standard-Part 10(AVS-P10)/mode selection/feature selection/signal classification分类
信息技术与安全科学引用本文复制引用
荣康,涂卫平,姜林..基于随机森林的AVS-P10开环编码质量优化算法[J].计算机工程与应用,2016,52(24):57-61,74,6.基金项目
国家自然科学基金青年基金项目(No.61201340). （No.61201340）
