高技术通讯2016，Vol.26Issue(10)：833-840,8.DOI:10.3772/j.issn.1002-0470.2016.10-11.002
基于Dirichlet过程的无线视频码率变化识别算法
An algorithm for recognition of video code rare's changes based on Dirichlet process
摘要
Abstract
The recognition of the changes of code rate of wireless video transmission was studied through clustering analysis of the quality of terminal video frame to provide technical references for adaptive adjusting the code rate during wireless video transmission.In view of the problem that classical recognition algorithms of fuzzy c-means (FCM) and K-means need setting cluster number in advance,the study proposed a Dirichlet process (DP) based FCM algorithm,called DP-FCM algorithm.The proposed DP-FCM algorithm combines the Dirichlet process with the FCM algorithm,and estimates the number of clusters using the DP mixture model and video frame quality.Then fuzzy c-means clustering for video frame quality is performed.The similar clustering results are merged by setting a reasonable threshold.Finally,video transmission rates are recognized by clustering video frames.The results of the experiment conducted on the LIVE database demonstrate that the classification and identification of video transmission rate can be achieved by the DP-FCM algorithm without setting the number of clusters.关键词
视频码率变化/Dirichlet过程(DP)/FCM聚类算法/视频帧质量Key words
change of video code rate/Dirichlet process (DP)/fuzzy c-means (FCM) clustering algorithm/video frame quality引用本文复制引用
李松,谢新新,刘东林,孙彦景,李梅香,代妮娜..基于Dirichlet过程的无线视频码率变化识别算法[J].高技术通讯,2016,26(10):833-840,8.基金项目
国家自然科学基金(51274202,51504255,51504214) （51274202,51504255,51504214）
中央高校基本科研业务费专项资金(2013RC11) （2013RC11）
江苏省科技成果转化项目(BA2012068) （BA2012068）
江苏省自然科学基金(BK20130199,BK20131124) （BK20130199,BK20131124）
江苏省产学研前瞻性联合研究(BY2014028-01) （BY2014028-01）
中国矿业大学重大项目培育专项(2014ZDPY16) （2014ZDPY16）
江苏省重点研发计划项目(BE2015040)和重庆市教委科学技术研究(KJ1501030)资助项目. （BE2015040）
