%0 Journal Article
%T A Vision Based Method for Aircraft Approach Angle Estimation<br>一种基于视觉的飞行器接近角估计方法
%A ZHU Hai-Jiang
%A WU Fu-Chao
%A HU Zhan-Yi
%A <br>祝海江
%A 吴福朝
%A 胡占义
%J 软件学报
%D 2006
%I 
%X An algorithm for estimating aircraft approach angle using computer vision is proposed in this paper. During the landing of an aircraft, the descent of the aircraft may be approximately considered as a pure translation motion. In this case the epipole has the same coordinates in all images and is called the Focus-of-Expansion (FOE), and the vanishing line of the ground plane is termed the Horizon. Furthermore, how the Focus-of-Expansion and the Horizon are extracted from a few calibrated sequential images is first introduced, then the aircraft approach angle is derived from these parameters. Simulated and real experiments validate this algorithm.
%K FOE(focus-of-expansion)
%K horizon<br>飞行器接近角
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=7C22F582BA21E823&yid=37904DC365DD7266&vid=BCA2697F357F2001&iid=94C357A881DFC066&sid=4986C0B14AED27B4&eid=F131C0ADC94A25CF&journal_id=1000-9825&journal_name=软件学报&referenced_num=0&reference_num=17