Suspicious Object Recognition Method in Video Stream Based on Visual Attention

We proposed a state-of-art method for intelligent object recognition and video surveillance based on human visual attention. Bottom-up and top-down attention are applied respectively in the process of acquiring interested object (saliency map) and object recognition. The revision of 4-channel PFT method is proposed in bottom-up attention, which enhances the speed and accuracy. Inhibit of return (IOR) is applied in judging the sequence of saliency object “pop-out”. Considering the basic characters of human vision, we also apply the rule that object looks small in the distance and big on the contrary. Euclidean distance of color distribution, object center coordinates and speed are considered in judging whether the target is match and “suspicious.” The extensive test on videos and images show that our method in video analysis has high accuracy and fast speed compared with traditional method. The method can be applied into many fields such as video surveillance and security.