Attitude determination of small, dim and high-speed targets based on multi-CMOS intersecting system

摘要

In order to measure attitude of small, dim and high-speed targets in shooting range, intersecting system based on multiple high-speed CMOS cameras was introduced in this paper. CMOS cameras were laid near from objects for small size, using multiple CMOS cameras to compose intersecting system for big number of targets tested, and selecting CMOS camera between CMOS and CCD for low cost and considering damage to measurement equipment of objects tested. Pitch angle and yaw angle were measured by extracting axle wire through image processing, image sequences were obtained from cameras laying on two sides. Velocity of objects was calculated by least square curve-fitting, acquiring coordinate of centroid on image received by CMOS camera laying below effective viewing field. One CMOS camera was laid on right ahead for measuring roll angle. Station mode introduced in this paper has virtue of low cost and free extending.