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计算机工程 ›› 2011, Vol. 37 ›› Issue (9): 6-8. doi: 10.3969/j.issn.1000-3428.2011.09.003

• 博士论文 • 上一篇    下一篇

靶场光测图像小目标中轴线提取方法

王鲲鹏,张小虎,于起峰   

  1. (国防科学技术大学航天与材料工程学院,长沙 410073)
  • 出版日期:2011-05-05 发布日期:2011-05-12
  • 作者简介:王鲲鹏(1981-),男,博士研究生,主研方向:目标检测与跟踪,靶场光学图像测量;张小虎,研究员;于起峰,教授
  • 基金资助:
    国家自然科学基金资助项目(60904084)

Extraction Method of Small Target Axes in Optical Measurement Images of Shooting Range

WANG Kun-peng, ZHANG Xiao-hu, YU Qi-feng   

  1. (College of Aerospace and Materials Engineering, National University of Defence Technology, Changsha 410073, China)
  • Online:2011-05-05 Published:2011-05-12

摘要: 为高精度地提取靶场光测图像弹体小目标的中轴线,提出一种最优区域拟合的小目标中轴线提取方法。分析小目标成像的具体特点,通过迭代过程确定目标的最优描述区域,并由此解算小目标的中轴线方程。实验结果表明,该方法能够较好地适应靶场弹体小目标图像姿态判读需求,具有鲁棒性强、精度高等特点。

关键词: 光学测量, 靶场图像, 目标三维姿态, 中轴线法, 形状拟合

Abstract: To get the axes of small target in images of shooting ranges precisely, a new method based on best fit region of target is proposed. The imaging characteristic of small target is analyzed, and an iteration process is designed to update the fit region of target continuously. Once the best fit region of target is obtained, moment method is used to calculate the axes of target in such region. As a result, the influence of interferer in image is reduced obviously. Experimental results show that this method is efficient and robust to noise, which can meet the requirement of small target 3D pose interpretation in shooting range.

Key words: optical measurement, image of shooting range, target 3D pose, axes method, shape fitting

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