%0 Journal Article
%T Corner Detection Algorithm for Image Mosaic<br>一种用于图像序列拼接的角点检测算法
%A FENG Yu-ping
%A DAI Min
%A ZHANG Wei
%A WANG Mei-jiao
%A <br>冯宇平
%A 戴明
%A 张威
%A 王美娇
%J 计算机科学
%D 2009
%I 
%X An improved algorithm for corner detection was proposed by analyzing the theory of Harris operator and its disadvantage. The main improved aspects were suggested just as follows ; First, the new grads operators were used to get image derivative. Second, the method adopted improved corner response function for avoiding the randomicity of k value. Then this algorithm automatically ascertained corner extraction threshold based on the first one in image sequence.Last, in order to improve the precision for corner extraction, the method obtained sub-pixel corners within 8 neighborhoods of the target pixel. Experiment results show that the computation time of improved algorithm enhances about 61. 3% , and it can be applied to image mosaic better.
%K Image mosaic
%K Corner detection
%K Harris operator
%K Comer response function<br>图像拼接
%K 角点检测
%K Harris算子
%K 角点响应函数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=D3E62917F27C3C5226F08CAE22CA6E2B&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=59906B3B2830C2C5&sid=B7BFA4B351E4C682&eid=273ADA1BCEFE8C00&journal_id=1002-137X&journal_name=计算机科学&referenced_num=1&reference_num=10