Extraction of Moving Objects Using Frame Differencing, Ghost and Shadow Removal

This paper proposes a technique for extracting moving object based on temporal differencing, ghost removal and shadow removal using NCC, while using a non-static Pan-Tilt-Zoom (PTZ) camera. To detect moving object in current image, the previous frame, ft-1, is compensated with respect to the current image. The subtraction of pixel intensity is done between the two aligned images. The used of temporal differencing resulting an appearance of ´ghost´. This paper proposes a technique to remove it by using the other previous image, ft-2. The resultant output is then cleaned up using morphological opening operator, before shadow removal is done. Each pre-defined foreground pixels are verified whether it is shadow pixel or foreground pixel. The results show the moving objects are extracted without shadow or other noises.