circular points短语¹⁴⁴⁹⁷²⁺² 基本例句 虚圆点 The camera calibration use the Tsai two-step method and non-linear optimization using a single plane calibration block with a pattern of white circular points on a black background. 针对单摄像机和单投影仪组成的 系统结构，依靠具有黑底白色圆点图案的单平面标定块，采用 Tsai两步法及非线性优化完成摄像机标定。71155