红外与毫米波学报, 2012, 31 (2): 143, 网络出版: 2012-04-13   

干涉成像光谱仪高光谱数据信息质量评估

Assessment of the information quality of hyperspectral data from interference imaging spectrometer
张霞 1帅通 1,2赵冬 1
作者单位
1 中国科学院遥感应用研究所,北京 100101
2 中国科学院研究生院,北京 100039
摘要
从信噪比和信息熵两个方面对干涉成像光谱仪(IIM)高光谱数据的信息质量进行了评估,以期为IIM高光谱数据的深入应用提供参考依据.结果显示,IIM高光谱数据整体信息质量良好,中间波段影像信息质量优于两端波段,750 nm附近作为月表斜长石、辉石光谱曲线反射峰,表现出较好的信噪比和信息熵,这对提取月表元素与矿物具有重要意义,但作为辉石、斜长玻璃矿物吸收谷的930 nm波段附近则信息质量较差;前9个波段信息质量上升趋势明显,但整体较差,建议在使用时对噪声做着重处理;第一波段和最后一个波段信息质量较差,建议舍去.
Abstract
The information quality of the IIM hyperspectral data has been assessed from the aspects of signal-to-noise ratio and comentropy for the further applications of the IIM data. As the assessment results show, the information of the IIM data has a good quality as a whole. The quality of the information at the middle bands are much better than that at both ends of the bands. Corresponding to reflectance of plagioclase and the pyroxene, the peak in the spectrum centered around 750 nm exhibits high value of SNR and comentropy. This result is of great importance for retrieving elements and minerals on the lunar surface. However, the absorption valley, centered around 930 nm, exhibits poor information quality. Although the information quality of the first nine bands has an obvious trend of rising, the noise should be reduced carefully before use because of the low quality of them as a whole. Moreover, the information quality of the first band and the last one is too poor to use.

张霞, 帅通, 赵冬. 干涉成像光谱仪高光谱数据信息质量评估[J]. 红外与毫米波学报, 2012, 31(2): 143. ZHANG Xia, SHUAI Tong, ZHAO Dong. Assessment of the information quality of hyperspectral data from interference imaging spectrometer[J]. Journal of Infrared and Millimeter Waves, 2012, 31(2): 143.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!