Calibration of Projector in 3D Photography Systems Using Grating Projection
Calibration of Projector in 3D Photography Systems Using Grating Projection
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作者：
Jin Jian
本文提出了一种光栅投影三维摄影系统中投影仪标定的方法。用数码相机拍摄一幅光栅平面与已知物平面相交的图像。根据该图像，从每条相交线上提取一对点。如果将已知物平面移动到已知位置，最后，根据每个光栅平面上对应的所有三维采样点，用最小二乘拟合算法逼近每个光栅平面方程。
In this paper,a method is proposed for projector calibration in 3D photography systems using grating projection.An image with intersection lines between grating planes and a known objective plane can be captured by a digital camera.According to the image a pair of points can be extracted from each of intersection lines.If we move the known objective plane to known positions,we can get more pairs of points belonging to the same plane.At the last,every grating plane equation can be approached with Least Square Fit Algorithm based all corresponding sample 3D points on it.