论文部分内容阅读
以湖泊湿地信息提取为研究目的,通过分析各波段光谱信息及其之间的相关系数,应用最佳指数法,同时参考地物光谱特征曲线以及各波段主要应用范围,对安徽菜子湖TM影像的最佳波段组合来进行了研究。结果表明:3、4、5波段的信息量最为丰富,其波段间相关性最小,OIF值高;同时经过反复比较R、G、B假彩色合成方案,最终选择TM453作为最佳波段组合,这样的多光谱合成影像能够最大程度地反映菜子湖湿地信息,为提高信息提取的精度和工作效率提供重要依据。
Based on the analysis of the spectral information of each band and the correlation coefficient among them, the best index method is used to analyze the spectral characteristics of the lake wetlands and the main application range of each band. The best band combination was studied. The results show that the information content of the 3,4,5 band is the most abundant, with the least correlation between the bands and the high OIF value. At the same time, after repeated comparison of R, G, B false color schemes, TM453 is selected as the best band combination The multi-spectral synthetic image can reflect the information of Cai Lake wetland to the maximum extent and provide an important basis for improving the accuracy and efficiency of information extraction.