主题:城区表面;骨架表面;密集表面;分割表面;深度断裂;遮蔽MRF;整体特征匹配;灰度匹配;自适应窗口;集成;自适应滤波;目标区块;urban surface;sparse surface;dense suface;segmented surface;depth discontinuty;occlusion;MRF;global feature based matching;area based matching;adpative matching window;integration;adpative smoothing;object area