中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2017, Vol. 43 ›› Issue (4): 52-56.doi: 10.3969/j.issn.1674-1579.2017.04.009

• 技术交流 • 上一篇    下一篇

一种非合作卫星目标立体视觉测量技术

  

  • 出版日期:2017-08-26 发布日期:2017-09-07

Measurement Technology Based on Stereo Vision for NonCooperative Targets

  • Online:2017-08-26 Published:2017-09-07

摘要: 针对空间非合作卫星近距离的相对位置和姿态测量问题,提出一种立体视觉测量技术.使用激光雷达为双目立体视觉提供先验距离信息和粗略姿态,在双目相机左右图像特征提取时增加视差范围约束,限定左右图中同名特征点提取的范围,可避免杂光条件下局部复杂纹理的干扰,有效降低计算复杂度,提高图像处理的速度.通过地面闭环试验对测量技术进行了验证,实验结果表明方法的有效性和先进性.

关键词: 非合作目标, 同名点, 复杂度

Abstract: A stereo vision based pose measurement method is proposed for noncooperative space targets. Laser radar can provide prior information such as distance and position for binocular vision system. Based on the information, the search area can be narrowed for the image pair because the disparity is determined for a certain distance. The compute complexity can be reduced so that measurement efficiency is improved. Meanwhile, algorithm is more robust because the texture complexity caused by stray light is lower at local area than global image. A closedloop experiment is conducted to validate the performance of proposed method.

Key words: noncooperative targets, match point, complexity

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