Locating available car parking bays using android apps

At present, many people who own cars keep increasing day by day as the standard of living increases. In the presence of car parking facilities in shopping malls, airports that are visited by people round the clock, many people do come by car. The person would be uncertain about the space available for parking before one reach the place. It would be useful if the person is able to know the status of parking space even before one reaches the destination. Hence, to be simple and cost efficient, we make use of video surveillance camera to track those locations, MATLAB to perform computer vision technique such as background subtraction for to track occupancy and vacancy of the parking slots. An app integrated with it would enable the person view the status of the slots.