基于OpenCV的图像处理，做边缘检测 -OpenCV-based image processing, do edge detection OpenCV-based image processing, edge detection to do

用kinect获取3D图像，并从3D图像中用OpenCV方法从深度图中获取梯度边缘，从而得到更多信息，做后续处理-Get with kinect 3D images, and get the edge gradient from the depth map from a 3D image using OpenCV method to obtain more information, do follow-up treatment