Using haarcascade_frontalface_alt to implement “passenger flow statistics”. The detail flow chart of the major implementation Sample test program:http://rg4.net/p/easyiv/passenger_flow_statistics.7z Sample video: http://rg4.net/p/easyiv/passenger_flow_statistics.avi BTW: This video file is temporary unavailable due to the my blog’s space limitation, I’m looking for a hosting with larger hard disk space and fair price.