一种抗光扰动的矢量纠偏方法研究

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，为了适应半球成像系统跟踪目标的实时性和抗扰性能要求，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；对于有扰动的图环像误差不超过5个像素。

A Method of Correcting Vector Error for Resisting Light Perturbance

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.