图像识别。通过高清摄像头采集移动物体图像，采集的图像与静态时一定距离拍摄的图片进行比对，以比对两者的像素值差值，从而计算物体与摄像头的距离。-Image recognition. HD camera collected images of moving objects, collected images and static pictures taken of a certain distance compared to the pixel values ​ ​ of the difference between the two than to calculate the distance of the object and the camera.