点击次数：

论文类型： 期刊论文

发表时间： 2015-08-01

发表刊物： CHINESE JOURNAL OF AERONAUTICS

收录刊物： SCIE、EI、ISTIC、CSCD

卷号： 28

期号： 4

页面范围： 1121-1130

ISSN号： 1000-9361

关键字： High-speed motion; Machine vision; Pose measurement; Structured light; Wind tunnel

摘要： The measurement of position and attitude parameters for the isolated target from a highspeed aircraft is a great challenge in the field of wind tunnel simulation technology. In this paper, firstly, an image acquisition method for small high-speed targets with multi-dimensional movement in wind tunnel environment is proposed based on laser-aided vision technology. Combining with the trajectory simulation of the isolated model, the reasonably distributed laser stripes and self-luminous markers are utilized to capture clear images of the object. Then, after image processing, feature extraction, stereo correspondence and reconstruction, three-dimensional information of laser stripes and self-luminous markers are calculated. Besides, a pose solution method based on projected laser stripes and self-luminous markers is proposed. Finally, simulation experiments on measuring the position and attitude of high-speed rolling targets are conducted, as well as accuracy verification experiments. Experimental results indicate that the proposed method is feasible and efficient for measuring the pose parameters of rolling targets in wind tunnels. (C) 2015 The Authors.