摘要
在半球成像系统实时跟踪目标的过程中 ,从受到光扰动影响的圆环像中迅速准确地提取圆环的中心是一个关键。为适应半球成像系统跟踪目标的实时性和抗扰性要求 ,根据圆的几何对称性 ,提出了一种矢量纠偏的抗光扰动的圆环中心确定方法。实验结果表明 ,对于无扰动的圆环图像其误差小于 1个像素 ;对于有扰动的圆环像误差不超过 5个像素。
The precise location from the perturbanced ring image is an important step for hemispherical imaging and tracking (HIT) system targeting object. Conventional method could not satisfy the HIT system tracking object in real time. According to the feature of geometric symmetry of a circle, a new method of resisting light perturbace is presented. The experimental results show that the measurement error might be no more than 1 pixel for perturbance free images. In the meantime, by the proposed method the measurement error might be no more than 5 pixels for perturbanced images.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2001年第10期1272-1274,共3页
Acta Optica Sinica
基金
国家自然科学基金 (6 978980 3)
