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遥感图像是环境地物反射太阳辐射和自身发射电磁波讯号的图像形式。遥感图像数据不仅含有大量地物结构和构造的空间信息,而且也是地物化学成分信息的反映。遥感技术十多年来的飞速发展和它在地学、生物学诸领域取得的明显经济效益,与地物波谱特性研究的成果是分不开的。一、传感器通道选择美国陆地卫星1—3号的MSS图像在对农作物估产、土地类型划分和开发利用、水文以及地形—地质制图等方面发挥了巨大作用,然而在矿产资源的探测和评价方面,尚未有惊人的突破。为此,美国自七十年
Remote sensing images are images of environmental objects reflecting solar radiation and transmitting electromagnetic signals by themselves. Remote sensing image data contains not only the spatial information of a large number of features and structures, but also the reflection of the chemical composition information of the features. The rapid economic development of remote sensing technology over the past decade and its obvious economic benefits in the fields of geology and biology are inseparable from the achievements in the study of the spectral characteristics of terrestrial objects. Sensor Channel Selection MSS images of USSARS 1-3 play a significant role in assessing crop yields, classifying and exploiting land types, hydrology, and topographic-geological mapping. However, in the exploration and evaluation of mineral resources, No astonishing breakthrough yet. To this end, the United States since seventy years