%0 Journal Article
%T Horizontal line 3D reconstruction from two image points based on single catadioptric omni-directional image<br>基于单幅折反射全向图的水平直线3维重建
%A Chen Wang
%A ZHANG Mao-Jun
%A XIONG Zhi-Hui
%A LOU Jing-Tao
%A <br>陈旺
%A 张茂军
%A 熊志辉
%A 娄静涛
%J 中国图象图形学报
%D 2010
%I 
%X Differ from traditional 3D reconstruction via stereo vision, this paper studies the reconstruction of straight horizontal lines in 3D space from single 2D omni-directional images. It demonstrates that, for symmetric non-central catadioptric systems, the equation of a 3D horizontal line can be estimated using only two points extracted from its image . By exploiting the peculiar property of horizontal line image in catadioptric system, line detection from single omni-directional image can be simplified. Meanwhile, a horizontal line reconstruction algorithm based on main-point image and non-main-point image is developed. Detailed experiments justify that, under the same precision of image point extraction, compared to present primary approaches of reconstruction from four image points, our methods is more straightforward and accurate.
%K single image
%K catadioptric omni-directional image
%K horizontal line
%K 3D reconstruction<br>单幅图像
%K 折反射全向图
%K 水平直线
%K 3维重建
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=6915527216E2AE4D9190FFE647C92B5C&yid=140ECF96957D60B2&vid=23CCDDCD68FFCC2F&iid=59906B3B2830C2C5&sid=7E823D8841E016EC&eid=E35B85FD10020A32&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=0