Calculation of the optimal segmentation scale in object-based multiresolution segmentation based on the scene complexity of high-resolution remote sensing images
文献类型： 外文期刊
作者： Feng, Tianjing 1 ; Ma, Hairong 2 ; Cheng, Xinwen 1 ; Zhang, Hongping 1 ;
作者机构： 1.China Univ Geosci, Fac Informat Engn, Wuhan, Hubei, Peoples R China
2.Hubei Acad Agr Sci, Wuhan, Hubei, Peoples R China
关键词： object-based image analysis; high-resolution remote sensing images; optimal segmentation scale; scene complexity
期刊名称：JOURNAL OF APPLIED REMOTE SENSING （ 影响因子：1.53； 五年影响因子：1.565 ）
ISSN： 1931-3195
年卷期： 2018 年 12 卷 2 期
页码：
收录情况： SCI
摘要： The quality of multiresolution segmentation directly influences the accuracy of high-resolution remote sensing image classification using object-oriented analysis technology. However, a perfect segmentation scale optimization method has not yet been developed. Using the fact that the optimal segmentation scale of high-resolution remote sensing images is closely related to the complexity of the objects on the image, we propose an approach for calculating the optimal segmentation scale based on the scene complexity of an image. First, we calculate the scene complexity of high-resolution remote sensing images using Watson's vision model. Then, we analyze the relationship between the image scene complexity and the optimal segmentation scale based on the model calculation. Optimal segmentation scales are found to be related to the scene complexity of high-resolution remote sensing images by an exponential function, allowing direct calculation of the optimal segmentation scale based on the fitted formulas and the image scene complexity. Finally, we propose a multilevel segmentation strategy to increase the object targeting in the optimal segmentation scale. The optimal segmentation scale calculation method proposed here is simple to perform and has a broad range of potential applications. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
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