单幅图像三维目标定位及重建

Single image 3D object location and reconstruction

首先对图像进行拉普拉斯滤波处理,进而利用Canny算子对图像进行边缘检测,通过Hough变换检测目标图像,采用CAD辅助提取边界直线,基于灭点理论标定数码相机,之后采用透视投影模型中基于图像相对深度方法对图像三维信息进行恢复。最后计算出了目标物体的特征点三维坐标,实现目标定位。通过CAD实现模型的重建与显示。

A single image is filtered with Laplace Filter ,edge‐detected with Canny algorithm and then Hough transforms is used to detect the target image .Boundary lines are extracted by using CAD ,and camera is calibrated based on vanishing point theory . With the image relative depth method in perspective projection model ,we recover the 3D information .We calculate out the 3D coordinates of the target and reconstruct and display the model with CAD .