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Urban morphology of unplanned settlements: the use of spatial metrics in VHR remotely sensed images

机译:计划外居民点的城市形态:在VHR遥感图像中使用空间度量

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摘要

Information about unplanned settlements in developing cities is often unavailable, despite their extent, which at times can dominate residential land-use. This research aims to contribute to the development of tools for monitoring such areas, by using spatial metrics as means for the identification of the morphology of unplanned urban settlements in VHR images. The methodology is tested in two case study areas: Dar es Salaam and New Delhi. The methodology builds on using image segmentation and on the assumption that segments representing homogenous urban patches are different in planned and unplanned areas. The morphological aspects (size, density and layout pattern) of planned and unplanned areas are analyzed using spatial metrics on segmented images. A final set of metrics has been used to build an unplanned settlement index’. Comparison between results and land use data showed that the index can assist in the identification of unplanned settlements.
机译:尽管有发展中城市的计划外定居点的信息,尽管其范围很广,但有时无法获得,这些信息有时会占据住宅土地使用的主导地位。这项研究旨在通过使用空间量度作为在VHR图像中识别未计划的城市居住区形态的手段,来促进用于监视此类区域的工具的开发。该方法论在两个案例研究领域进行了测试:达累斯萨拉姆和新德里。该方法建立在使用图像分割的基础上,并假设在规划和非规划区域中代表同质城市斑块的分段是不同的。规划和非规划区域的形态学方面(大小,密度和布局模式)使用分割图像上的空间度量进行分析。最后一组指标已用于建立计划外的结算指标”。结果与土地利用数据之间的比较表明,该指数可以帮助识别计划外居民点。

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