| 基于NDII及NDVI提取水稻信息的对比研究 |
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| 引用本文： | 徐超,朱秀芳,潘耀忠,朱文泉,雷燕飞.基于NDII及NDVI提取水稻信息的对比研究[J].地理与地理信息科学,2008,24(5). |
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| 作者姓名： | 徐超 朱秀芳 潘耀忠 朱文泉 雷燕飞 |
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| 作者单位： | 北京师范大学环境演变与自然灾害教育部重点实验室,北京,100875;北京师范大学资源学院,北京,100875 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 基于水稻和银杏混合区的TM影像,分别引入NDII及NDVI提取研究区水稻信息,通过总量精度和位置精度的对比,发现NDII提取结果均优于NDVI。对研究区水稻和银杏样点的NDVI值和NDII值进行对比,发现其NDVI值相近,而NDII值相差较大。这从另一方面解释了利用NDII提取水稻结果优于NDVI。
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| 关 键 词： | 遥感 NDII NDVI 水稻 银杏 |
Comparison Study on Applications of NDII and NDVI in Information Extraction of Rice |
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| XU Chao,ZHU Xiu-fang,PAN Yao-zhong,ZHU Wen-quan,LEI Yan-fei.Comparison Study on Applications of NDII and NDVI in Information Extraction of Rice[J].Geography and Geo-Information Science,2008,24(5). |
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| Authors: | XU Chao ZHU Xiu-fang PAN Yao-zhong ZHU Wen-quan LEI Yan-fei |
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| Abstract: | For traditional methods,NDVI is always used to extract rice information from remote sensing image,but it is difficult to distinguish rice using NDVI from rice and other crop mixed area.As rice has the moisture related feature,moisture index can do help for rice extraction.But there are not many researches focus on introducing moisture index into rice extraction.This paper introduced NDII into extract rice information from TM image of rice and ginkgo mixed area,and compared its result with result from using NDVI.Comparison results show that:whether position accuracy or whole accuracy,rice extraction results from NDII are both better than that from NDVI. |
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| Keywords: | remote sensing NDII NDVI rice ginkgo |
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