| A New Approach for Vegetation Change Detection in Urban Areas |
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| 作者姓名： | YU Hui JIA Yonghong |
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| 作者单位： | [1]School of Remote Sensing and Information Engineering, Wuhan University, 129 Luoyu Road, Wuhan 430079, China [2]不详, Wuhan University, 129 Luoyu Road, Wuhan 430079, China |
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| 基金项目： | Supported by the National Foundation Surveying and Mapping Finance （No, 146014020240104）, Key Laborary of Geo informatlcs of State Bureau of Surveying and Mapping （No. B2510） ; Provincial Foundational Geomatics Center of Gansu （No. gd dzdtl5-2005-012）. |
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| 摘 要： | IntroductionVegetation distribution and change is regardedas ani mportant sign of urban environment . Withcity expanding and population increasing, herecomes a series of problems on environment ,andmoreover ,greening ratio is regarded as a stand-ard of ci…
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| 关 键 词： | 植被 城市环境 城市绿化 环境质量 |
| 文章编号： | 1009-5020（2006）04298-08 |
| 收稿时间： | 2005-09-02 |
A new approach for vegetation change detection in urban areas |
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| YU Hui JIA Yonghong.A New Approach for Vegetation Change Detection in Urban Areas[J].Geo-Spatial Information Science,2006,9(4):298-305. |
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| Authors: | Yu Hui Jia Yonghong |
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| Institution: | YU Hui JIA Yonghong |
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| Abstract: | Because of complex change in urban areas, modified CVA application based on mask techniques can minify the effect of non-vegetation changes and improve upon efficiency to a great extent. Moreover, drawing from methods in polar plots, the technique measures changes with absolute angular and total magnitude of PVI calculated on the basis of linear fit with least-square estimation and GVI calculated using 3D G-S transformation. Finally, this application is performed with Landsat ETM imageries of Wuhan in 2002 and 2005, and assessed by error matrix, in the way it could detect change pixels 94.91% correct, and the total consistent coefficient Kappa could reach to 0.85. The evaluation result demonstrates this new application trends as an efficient and effective alternative to urban vegetation change extraction. |
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| Keywords: | vegetation change detection change vector mask |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
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