Separation of moving objects and their shadows, and application to tracking of loci in the monitoring images

Since an object is always accompanied by its shadow, an extracted region of the object and its shadow is often assimilated into one region. On an analysis of the object´s shape, the shadow region causes misunderstanding for detection of moving objects such as an intruder. In order to detect moving objects by image processing, it is necessary to separate objects from their shadows. This paper introduces a separation technique, to separate objects from their accompanying shadows, and presents a monitoring system facilitating detection and tracking for several moving objects. By using the proposed separation method of the object and its shadow, tracking of movement loci of several objects was performed with a success rate of 80%