Crowdedness estimation approach based on stereovision for bus passengers

An estimation approach is proposed in this paper based on the binocular stereovision to collect the degree of crowdedness in public transports.The proposed method combines the disparity with frame differences to extract the fore-ground object.An adaptive window normalized cross correlation(NCC) matching and interpolated method is applied to get the sub-pixel image disparity value.Then,the foreground object is projected to the horizontal plane to eliminate the influence of the occlusion and perspective effec...