%0 Journal Article
%T A robust registration algorithm of image geometry for projector-camera system<br>一种投影仪相机系统几何配准的鲁棒算法
%A Fu Lingjin
%A XU Haisong
%A ZOU Wenhai
%A <br>傅凌进
%A 徐海松
%A 邹文海
%J 中国图象图形学报
%D 2010
%I 
%X The existing projector relies on a high quality screen for exhibiting a remarkable image, which would be affected by the reflecting and geometric characteristics of the screen. Aiming to relax this confinement, the projector-camera system is then developed to compensate and correct, in radiometry, the shortcomings of the display quality on the screen, in which the geometric registration between the pixels of projection and camera images becomes a foundational and significant issue. Based on the methods of lump sampling, morphologic processing, identifying and locating the sampling patches, as well as binary polynomial fitting method, a registration algorithm was achieved. The established algorithm was tested under various scenes of different display surfaces, including both flat and curved screens, together with clean and colour-patterned screens. The experimental results indicated that the mean deviation of image registration was between 0.2 to 1.0 pixel units, regardless of the change in sampling quantity. Meanwhile, the executive time of the registration was less than 10 seconds. This sound efficiency and high precision implied this algorithm is applicable to practical demands.
%K projector-camera system
%K image registration
%K geometric mapping
%K binarization<br>投影仪相机系统
%K 图像配准
%K 几何映射
%K 二值化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=C0BC92358FF384B0F23C94BB1F291F8D&yid=140ECF96957D60B2&vid=23CCDDCD68FFCC2F&iid=708DD6B15D2464E8&sid=27B74BA4EDC40A8D&eid=764931DBFDAAC8C1&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=0