%0 Journal Article
%T FEATURE-POINT TRACKING BASED TIME-TO-CONTACT ESTIMATION FOR MOVING OBJECTS<br>基于特征点跟踪的运动目标接触时间估计方法
%A LI Jun
%A YANG Xin
%A ZHANG Gui Lin
%A SHI Peng Fei
%A <br>李俊
%A 张桂林
%J 红外与毫米波学报
%D 2001
%I Science Press
%X Time to contact (TTC) estimation problem between moving object and static observer was dealt with. A feature line based estimation scheme was proposed. And a TTC estimation system based on feature point tracking was presented. In addition, the feature point selection method, moving objects extraction, and feature point tracking scheme were given in detail. The experiments of TTC estimation for three sets of the TTC labeled image sequences were done, and the results are satisfactory.
%K motion analysis
%K time
%K to
%K contact estimation
%K feature
%K point tracking
%K motion segmentation<br>接触时间估计
%K 特征点跟踪
%K 运动分割
%K 运动目标序列图像
%K 计算机视觉
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=EF69BDB4C5BAA78F&yid=14E7EF987E4155E6&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=BFB86B6ED3A99B9D&eid=5335AD3CFE6E14EA&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=1&reference_num=11