农业现代化研究2016，Vol.37Issue(6)：1190-1197,8.DOI:10.13872/j.1000-0275.2016.0120
基于ZY-3和图像融合的冲沟参数提取研究
Extracting gully parameters using multispectral (MS) and panchromatic (PAN) fusion image of the ZiYuan-3 (ZY-3) satellite
摘要
Abstract
Selecting the west coast watershed of Anli Reservoir in Qixia City, Shandong Province as the study area, fusion images were conducted to combine the PAN and multispectral images of ZY-3 satellite in one image using Gram-Schmidt (GS) spectral sharpening method, hue-saturation-value(HSV) transform, and principal component analysis (PCA) transform. Gully parameters were interpreted from the fusion images, and the accuracy was assessed by comparing the gully parameters interpreted from fusion image against those derived from a ground survey. The results showed that the fusion images constructed using the three methods have not only enriched spectral information but also enhanced spatial texture information. The gully mapping accuracy from the three fused images were much higher than those from the original multispectral image. Compared with the ifeld measurement, the accuracy of gully map interpretated from GS spectral sharpening fusion image was the highest among all the three methods, with correlation coefifcients of gully length and gully area between those of ifeld measurement and those of mapping from fusion image being 0.984 and 0.991, respectively. This demonstrated that GS spectral sharpening method was the most suitable image fusion method for gully mapping.关键词
冲沟参数/Gram-Schimdt/HSV变换/PCA变换/图像融合/资源三号卫星Key words
gully parameters/GS spectral sharpening/HSV transform/PCA transform/image fusion/ZiYuan-3 (ZY-3) satellite分类
农业科技引用本文复制引用
王涛,赵延芳,何福红,李鹏,马江涛..基于ZY-3和图像融合的冲沟参数提取研究[J].农业现代化研究,2016,37(6):1190-1197,8.基金项目
国家自然科学基金项目（41001160，41471223）；山东省自然科学基金项目（ZR2014JL026）；烟台市科技计划项目（2015ZH091）。 （）
