Calculation method of checkerboard space angle

The invention relates to the technical field of photographic equipment calibration, in particular to a checkerboard space angle calculation method, and the method comprises the steps: obtaining a vertical vector perpendicular to a target checkerboard plane; and calculating the space angle of the target checkerboard according to the vertical vector. According to the technical scheme, through mathematical modeling, the vertical vector perpendicular to the target checkerboard plane is used for representing the space angle of the target checkerboard, so that the space angle of the checkerboard can be accurately determined, human eye physical measurement is not needed, the angle determination efficiency is improved, personal errors are reduced, and the accuracy of a subsequent rainbow soft calibration algorithm is improved. 本申请涉及摄影设备标定技术领域，具体而言，涉及一种棋盘格空间角度的计算方法，所述方法包括：获取垂直于目标棋盘格平面的垂直向量；根据所述垂直向量，计算所述目标棋盘格的空间角度。本申请提供的技术方案通过数学建模，用垂直于目标棋盘格平面的垂直向量表征目标棋盘格的空间角度，从而能够准确确定棋盘格的空间角度，无需进行人眼物理测量，提高确定角度的效率，减少人为误差，提高后续虹软标定算法的准确性。