GF-6WFV 影像在湿地信息提取中是否具有优势，其红边波段及红边指数在湿地分类中的作用还有待深入探讨。基于特征优选的GF-6WFV 影像湿地信息提取 Wetland Information Extraction from GF-6WFV Multispectral Imagery Based on Feature Optimization HUANG Bingxin 1,XU Jia 1,ZHANG Xiaotong 1,CHEN Cheng 2 (1.School...
关键词GF-6WFV；叶面积指数；光谱植被指数模型；NDSI3 中图分类号：TP79文献标识码：A DOI：10.3964/j.issn.1000-0593(2022)07-2278-06 引言 叶面积指数(LAI)是植被冠层结构最重要的生物物理参数之一-.,它通常定义为单位地表面积上所有叶片面积之和的一半，它是反映植被个体特征和群体特征长势的关键指标,控制...
定位误差长时间序列针对高分六号(GF-6)卫星WFV传感器单相机超大幅宽成像和影像分块分发的特点,以谷歌地球影像为参考,通过分析同名点坐标差异,对GF-6卫星WFV影像几何定位精度进行了长时间序列评价.试验结果表明,对于单景WFV影像而言,左,中,右3块子影像均出现了明显的系统误差分布情况,且误差大小依次增大.对于长时间...
该研究以云南省土壤侵蚀较为严重的文山州为例,在第三次全国国土调查数据、水利普查抽样单元和GF-6 WFV等多源遥感数据基础上,结合随机森林算法快速自动提取梯田,利用CSLE模型对山区耕地土壤侵蚀进行精细定量评估,并以空间自相关分析揭示土壤...
摘要 针对高分六号(GF-6)宽幅多光谱影像具有红边波段的特点,构建一种基于特征优选的GF-6 WFV影像主要粮食作物提取方法。首先从预处理后的GF-6影像中提取光谱特征、植被指数、水体指数和红边指数特征,然后利用递归特征消除...展开更多 In view of the characteristics of multiple red edge bands of GF-6 wide ...
Keyword: GF-6 WFV; Leaf area index; Spectral vegetation index model; NDSI3 文章图片 引言 叶面积指数(LAI)是植被冠层结构最重要的生物物理参数之一[1], 它通常定义为单位地表面积上所有叶片面积之和的一半, 它是反映植被个体特征和群体特征长势的关键指标, 控制着地表植被的许多生物及物理过程[2], 因此, ...
(NDVI-DFI)计算植被覆盖度,进一步探讨GF-6 WFV与Sentinel-2B在不同研究靶区对植被信息的提取差异.研究结论如下:(1)研究中应用特征空间优化算法,分别从GF-6 WFV影像筛选出35个最优分类特征,Sentinel-2B影像筛选出31个最优分类特征进行分类,其中,GF-6 WFV与Sentinel-2B应用特征空间优化的Ro F分类,其总体分类精度...
Using GF-6 WFV images as data sources, four feature combinations were constructed to compare the extraction accuracy of plantation forest in different combinations, the results indicated that the red edge band could enhance the vegetation information and significantly improve the classification accuracy ...
Result(1)The overall accuracy of the GF-6 WFV for the combination of blue,green and red band was 58.31%.With the addition of the purple,nearinfrared,red edge,yellow edge of GF-6 WFV band and short-wave infrared of Sentinel-2 band,the overall accuracy increased by 1.99%,8.90%,10.71%,...
soybean; crop mapping; GF-6 WFV; machine learning; feature selection1. Introduction Soybean (Glycine max L.) is rich in oil and protein, making it a major source of edible oil and an important raw material for food industry and animal feed. It holds significant value for industries such ...