| Shadow Detection and Compensation for Color Aerial Images |
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| 作者姓名： | WANGShugen GUOZejin LIDeren |
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| 作者单位： | [1]SchoolofRemoteSensingandInformationEngineering,WuhanUniversity,129LuoyuRoad,Wuhan430079,China [2]不详,WuhanUniversity,129LuoyuRoad,Wuhan430079,China |
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| 基金项目： | theOpeningResearchFoundationfromLIESMARS (No.(0 1 ) 0 1 0 1 ) |
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| 摘 要： | A method for shadow detection and compensation for color aerial images is presented. It is consid-ered that the intensity value of each image pixel is the product of illumina-tion function and ground object reflec-tion, and the shadowed regions on the image are mainly caused by the short of illumination, so the information compensation for the shadowed re-gions should concentrate on the illumi-nation adjustment of concerned area on the basis of the analysis of whole im-age. The shadow detection and com-pensation procedure proposed by this paper consists of four steps.
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| 关 键 词： | 彩色航空摄影 数学形态学 摄影测量 图像补偿 地图投影 |
Shadow detection and compensation for color aerial images |
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| WANGShugen GUOZejin LIDeren.Shadow Detection and Compensation for Color Aerial Images[J].Geo-Spatial Information Science,2003,6(3):20-24. |
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| Authors: | Wang Shugen Ph D Guo Zejin Li Deren |
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| Institution: | WANG Shugen GUO Zejin LI Deren |
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| Abstract: | A method for shadow detection and compensation for color aerial images is presented. It is considered that the intensity value of each image pixel is the product of illumination function and ground object reflection, and the shadowed regions on the image are mainly caused by the short of illumination, so the information compensation for the shadowed regions should concentrate on the illumination adjustment of concerned area on the basis of the analysis of whole image. The shadow detection and compensation procedure proposed by this paper consists of four steps. |
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| Keywords: | color aerial image color space transformation shadow detection shadow compensation mathematical morphology |
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