The design and implementation of a vision-based people counting system in buses

This system counts passengers through a single camera that is fixed at an overhead (zenithal) position. The proposed algorithm is designed to solve the problem of illumination, which can occur when the bus door opens or closes. A processing ratio of about 30 frames/s is necessary to overcome the extreme change in illumination. The system combines global positioning system data and standard time to establish the number of passengers at each bus stop at different periods of time and calculates the number of passengers and unoccupied seats to provide business-related information.