哀牢山TM遥感图像及多源地学数据的综合图像处理

本文综述了在哀牢山老王寨地区利用TM图像及线性体、化探土壤测量的数据进行综合图像处理的方法和步骤，包括：TM图像多功能处理；线性体的解释及数字化图像；土壤测量数据的数字化图像；它们之间的相关分析及其综合图像处理等。并由此总结该区金矿成矿的构造模式和影像标志，可应用到已知矿区外围和其他地方的金矿预测中去，并接受检验。     

数字遥感影像地形效应分析及校正

在数字遥感影像应用中一个不可忽视的现象是地形校应，它是定量遥感分析、自动分类、图象分割及特征提取时首先要分析和处理的问题，尤其是在丘陵和山区。本文较系统地分析了数字遥感影像中的地形效应，论述了地形效应的校正模型及技术，并借助于数字高程模型（ＤＥＭ），对ＴＭ影像进行了地形效应的校正实验，取得了令人满意的结果。     

TM图像线性体信息微机自动提取

本文采用图像平滑、边缘跟踪、霍夫变换、逆霍夫变换等综合图像处理的技术,从卫星TM图像中提取线性体信息。在霍夫变换后的累加器阵列中采用局部最大值选择,逆霍夫变换后采用剖面分析等人-机交互处理方法,结合遥感地质学家的图像解泽经验,从而提高了线性体信息自动提取的精度。     

应用TM图像编制土地利用图的一种简易方法

以TM和SPOT两种图像为标志的第二代信息源的产生,使遥感应用由研究走向实用,为解决区域环境和生态问题服务。国家科委七·五攻关项目第73项——遥感应用(75—73—04)。课题涉及大约389万平方公里的土地,参加单位达上百之多,作者在参加课题的实践中,根据TM信息源的特征,以土地利用制图为例。总结出一种适合于条件较差单位,保证精度、简易的     

机关文化样本：娄底国税“家国情怀”文化

宏观调控部门、执法部门、经济工作部门，这是国税与国土共同的属性。 国税与国土一样都注重服务功能。而国税系统的文化建设起步相对较早，已经取得了一定的成效。     

A Method for Retrieving Water-leaving Radiance from Landsat TM Image in Taihu Lake, East China

The visible and infrared bands of Landsat Thematic Mapper (TM) can be used for inland water studies. A method of retrieving water-leaving radiance from TM image over Taihu Lake in Jiangsu Province of China was investigated in this article. To estimate water-leaving radiance, atmospheric correction was performed in three visible bands of 485nm, 560nm and 660nm. Rayleigh scattering was computed precisely, and the aerosol contribution was estimated by adopting the clear-water-pixels approach. The clear waters were identified by using the Landsat TM middle-infrared band (2.1μm), and the water-leaving radiance of clear water pixels in the green band was estimated by using field data. Aerosol scattering at green band was derived for six points, and interpolated to match the TM image. Assuming the atmospheric correction coefficient was 1.0, the aerosol scattering image at blue and red bands were derived. Based on a simplified atmospheric radiation transfer model, the water-leaving radiance for three visible bands was retrieved. The water-leaving radiance was normalized to make it comparable with that estimated from other remotely sensed data acquired at different times, and under different atmospheric conditions. Additionally, remotely sensed reflectance of water was computed. To evaluate the atmospheric correction method presented in this article, the correlation was analyzed between the corrected remotely sensed data and the measured water parameters based on the retrieval model. The results show that the atmospheric correction method based on the image itself is more effective for the retrieval of water parameters from Landsat TM data than 6S (Second Simulation of the Satellite Signal in the Solar Spectrum) code based on standard atmospheric and aerosol models.     

藏南拉轨岗日变质核杂岩带的TM影像特征

通过对拉轨岗日地区TM图像进行主成分变换、缨帽变换、比值运算等数字处理, 其成果图像进一步印证了拉轨岗日变质核杂岩带具有典型三层结构这一野外区调成果.通过对系列成果图像的分析对比, 总结了变质核、接触带和盖层的影像特征, 分析了拉轨岗日构造带各变质核杂岩之间的变化规律.