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 从信息提取的角度阐述遥感影像尺度问题的重要性,评述了尺度效应、尺度转换以及最优尺度选择研究的国内、外现状。重点探讨几种不同尺度转换方法,以及基于像元和面向对象的最优尺度选择方法的技术特点,分析了尺度研究未来发展方向。 更多还原

【Abstract】 The importance of scale issues is described in this paper.It also reviews the situation of the study on scale effect,scale transformation and selection of optimal scale.Then,several scale transformation algorithms have been discussed,and the technical characteristics of selected methods of optimal scale based on pixel and object are studied.In the end,the future directions of the scale issues are analyzed. 更多还原