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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 foreground 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 effect. Finally the degree of crowdedness is calculated from the area and the perimeter of the foreground objects. Experimental results show that the proposed method can obtain good estimation results in the simulated scenes in the laboratory and on parking or moving buses. This approach is effective to illumination changes, shadows and occlusion of passengers. 相似文献
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“班门弄斧”这个成语的意思是说在鲁班门前舞弄斧头 ,比喻在行家面前卖弄本领。关于这个成语还有这样一个典故呢 :明朝梅之涣在《题李白墓》一诗里 ,用“来来往往一首诗 ,鲁班门前弄大斧”来讥讽当时在李白墓上乱题诗的游人。所以 相似文献
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