%0 Journal Article
%T An Algorithm of Automatic Video Text Locating, Tracking and Recognition<br>一种视频文本自动定位、跟踪和识别的方法
%A LI Zhao-hui~
%A <br>李朝晖
%A 余英林
%J 中国图象图形学报
%D 2005
%I 
%X Text in video can provide an important supplemental source of index semantic information. In this paper, an algorithm of automatic video text locating, tracking and recognition is presented. First, the text regions are located by several steps: wavelet decomposition, high frequency component intensity and density detection, horizontal and vertical convex detection based LH, and text locating. Then the text regions are tracked in next consecutive frames. After multiple frames averaging, the text regions are enhanced. By binarization of the enhanced text regions followed by component analysis, the text regions with clean background are obtained. Then the text regions are recognized by OCR software, the final text strings are attained. Experimental results show that the proposed algorithm can detect and track text region simply and effectively.
%K text detecting
%K semantic context
%K video index<br>自动定位
%K 文本
%K 跟踪
%K 二值化处理
%K OCR软件
%K 语义信息
%K 视频数据
%K 运动估计
%K 多帧平均
%K 分量分析
%K 识别效果
%K 定位精度
%K 视频帧
%K 字符
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=79A102F7C41587CF&yid=2DD7160C83D0ACED&vid=F3090AE9B60B7ED1&iid=E158A972A605785F&sid=D0E8F9CBDBE0070C&eid=D3B165066745DBC29741D442DF06B719&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=3&reference_num=5