文献类型： 外文期刊
第一作者： Shen, Kejian
作者： Shen, Kejian;Han, Xue;Wang, Haijun;Jiao, Weijie
作者机构：
关键词： Soybean transition area;Harvest 2times in a year;Sampling survey
期刊名称：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE IX, CCTA 2015, PT II
ISSN： 1868-4238
年卷期： 2016 年 479 卷
页码：
收录情况： SCI
摘要： Considering the spatial distribution and harvest times of Brazil soybean, using Landsat8 data, this paper chose 3 study area, determine the optimum classification images by visually comparison of multi-period images, extract soybean by ISODATA unsupervised classification method and visual correction. The conclusion is that Landsat8 path/row of 225/75 (between Study area3 and Study area2) are soybean transition area of harvest 1 time in a year and harvest 2 times in a year; Classification result can be used for sampling survey of national scale and the full coverage survey of county scale. Soybean classification method can be used to improve the method of low resolution image and to guide other medium resolution image.
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