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根据人居环境研究对遥感信息提取的需要和遥感信息本身空间分辨率与波谱分辨率的限制 ,采用多种方法将具有较高空间分辨率的法国 SPOT遥感信息和具有多波谱的美国 TM遥感信息进行融合试验 ,探讨了多源遥感信息融合的有效途径 ,并通过定性分析和定量分析对融合结果进行了对比分析。结果表明 ,信息融合以后的影像显然既保持了 SPOT影像的空间分辨率特征 ,又保持了 TM影像的多波谱特征 ,可提取的专题信息量有明显的增加 ,为人居环境的研究提供了新的信息获取手段。在多种融合方法中 ,主成分变换所得影像效果较为理想 ,色彩变换融合的效果次之。
According to the need of remote sensing information extraction and the limitation of spatial resolution and spectral resolution of remote sensing information, a lot of methods are used to compare French SPOT remote sensing information with high spatial resolution and US TM remote sensing information The fusion experiments were conducted to explore the effective ways of multi-source remote sensing information fusion. The qualitative and quantitative analyzes of the fusion results were compared and analyzed. The results show that the images after the information fusion apparently maintain the spatial resolution of the SPOT image and maintain the multi-spectral features of the TM image, and the amount of thematic information that can be extracted has obviously increased, thus providing a new research for the living environment Information acquisition means. In many fusion methods, the result obtained by the principal component transformation is more ideal and the effect of color transformation fusion is second.