This paper presents an study on the interior orientation techniques in computer vision, and proposes a collimation mark recognition algorithm which applies to practicality images on barycenter of symmetrical figure.

• 介绍了对计算机视觉中数字影像的内定向技术的进一步研究，对现有框标识别方法进行了改进，提出了基于对称图形重心的框标自动识别方法.