Real-time segmentation and tracking technique of multiple moving objects in video sequence
Zhu Shan-an · Journal of Zhejiang University(Engineering Science) · 2008
Effective background was modeled by accumulative frame-to-frame differences,and foreground could be extracted using background subtraction operation. A variable coefficient spatial filter was presented,which could effectively enhance the background subtraction image and make the foreground region has much more spatial connectivity.An improved Otsu-based segmentation method was presented to accurately threshold the background difference image.Morphological operation was used in extracting contours of moving objects.After getting the contours of moving objects,region growing segmentation method was applied to locate the foreground region,and the rectangle centre was seen as the mass centre of the moving objects.Moving objects were tracked using minimal Euclidean distance and the motion trajectories were also painted.Experimental results showed that proposed algorithm was effective and efficient.