The detection accuracy is likely to be influenced by water bodies and bluish surface features during the detection of shadows on high-resolution remote sensing images. To tackle this problem, this paper proposes a new shadow detection method using principal component transform and multi-band operation. Firstly, the spectral values of typical surface features such as shadows, water bodies and buildings are counted and analyzed in QuickBird images. Secondly, the non-shaded area and shaded area are identified based on principal component transform combined multi-band operation and automatically detected by multimodal histogram threshold algorithm. Finally, the detected result is processed by morphological filtering algorithm. The result shows that this method shows higher extraction accuracy, efficiency and universality for QuickBird images.
姚花琴, 杨树文, 刘正军, 杨兴旺, 李轶鲲. 基于QuickBird影像的城市高大地物阴影检测方法[J]. 国土资源遥感, 2015, 27(2): 51-55.
YAO Huaqin, YANG Shuwen, LIU Zhengjun, YANG Xingwang, LI Yikun. A method of shadow detection for city tall ground objects based on QuickBird images. REMOTE SENSING FOR LAND & RESOURCES, 2015, 27(2): 51-55.
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2015, Vol. 27 
