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    题名: A hierarchical approach to distance calculation using the spread function
    作者: 梁恩輝;Liang, En-hui;Lin, Shih-gang
    贡献者: 淡江大學資訊管理學系
    日期: 1998-09
    上传时间: 2009-11-30 13:12:39 (UTC+8)
    出版者: Taylor & Francis
    摘要: The spread function is a powerful operation for analysing a wide range of phenomena considered in geographical information systems (GIS). One important and common application of the spread functions is the calculation of distance on a map. Mathematical morphology is a technique extensively used in the area of image processing, and it has been applied to calculating distance using the spread function. Unfortunately, its computation time is extremely long. In this paper, we propose to reduce the computation time by using a hierarchical data structure. The proposed approach and algorithm are presented and experimental results demonstrate that a substantial speed up in computation time can be obtained.
    關聯: International Journal of Geographical Information Science 12(6), pp.515-535
    DOI: 10.1080/136588198241653
    显示于类别:[資訊管理學系暨研究所] 期刊論文

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