摘要
针孔成像模型下非主光轴上的球体成像为椭圆，椭圆中心偏离球心投影点。针对球体固定单目视觉测距问题，推导了椭圆中心偏移量的解析公式，研究了基于该公式的校正方法，并进行了仿真验证。结果表明，该方法有效地减小了成像中心偏移带来的误差，适用于近距离、大视场、固定单目视觉测距。
The image of sphericity which does not located the principal optic axis is an ellipse based on pinhole model, and the image center offsets from the projection of the sphere center. To solve the sphere ranging problem of fixed monocular vision, the analytical formulation of ellipse center offset is deduced, and the calibration method using this formulation is proposed. The results of the simulation show that this calibration method is validated which can efficiently minish the error caused by ellipse center offset, and can be used for high-precision sphericity ranging problem of fixed monocular vision in close range, wide angle situations.
出处
《装备指挥技术学院学报》
2008年第4期63-67,共5页
Journal of the Academy of Equipment Command & Technology
