Change detection by background subtraction is a common approach to detect moving foreground. The resulting difference image is usually thresholded to obtain objects based on pixel connectedness and resulting blob objects are subsequently trac

该算法为领域标记程序，可以检测 blob 区域-the algorithm for field marking procedures can detect regional blob

this program used to detect the blob for the human in 2D image

blob detection, 识别图像中特征(blob detection, detect blob and features in an image. blobs are circles and user can choose blob size and density. it can be used to stich panarama images and image detections)