The Multi-Level Separate And Extract Technique Of Remote Sensing Information

The multi-level separate and extract technique of Remote Sensing Information is a fully remote sensing information analyse and manipulate process, which extract the alteration zones information based on the theories of rock and mineral's electromagnetic wave characteristics. By use of mathematics to set up model and choose best variables, Use kinds of mathematic methods and means of image strengthen , gradually kick off interference factors from remote sensing information, strengthen separate and extract mineral's abnormal information Step by step, get estimate images which include target's characteristic information in the end.Took Yingzuishan as research area which located in GanSu province, And selected Yingzuishan gold deposit as test site. Set up the geological concept model of remote sensing prospecting by way of collect , categorize and analyse the research area's documents systematically which already published. Through rock and mineral's multianalysis which include all of the results such as on-the-spot measurement of ground spectrum, rock and mineral's identification, microanalysis of Au etc. Select the best band or variable sets to multi-levelly separate and extract mineralized rock information, set up remote sensing models to extract different alteration zones, By use of Landsat-TM and ETM satellite image data and took varies of digital image processing into effort .acquired the every kinds of alteration zones distribute information.During the applications and researches in Yingzuishan area , GanSu province.The scientific attempts adopted and pioneer achievements acquired were as follows:l)Proceeded in this area for the very first time to make on-the-spot spectral test,acquired a great deal of and kinds of rock spectral data .2)Based on the correlation analysis between on-the-spot spectral test data and Landsat-TM&ETM image data, set up the remote sensing mineralization and alteration zones model in this area for the first time;3)Completely and systematically summarized the technical route and work flow in use of the multi-level separate and extract technique of remote sensing information, And took Yingzuishan for example made a detailed illustration and explaination.4)Change the rock mineralization research from purely qualitative into the combine of quantificational and qualitative, joined both predominance together. Thus contracted the abnormity's scope, and again increased accuracy that predict in metallogenesis of gold deposits.5)Made overlap analysis between abnormities and documents such as remote sensing images ,and made images more beautiful and useful, strengthened the feasibility to explore on-the-spot.6)During the course of examination for the technique ,we found out several important candidate prospecting targets in this area, and created a new geological prospecting situation at the same time.The remote sensing information models provided by this paper to be applicable to the alteration zones extract in the east of A'er'jin mountain and west of Northern Qilianshan mountain,In which Early Paleozoic sea facies volcanic rocks spread widely. Images and article were created by hard work from author and his comrades, They will be proved very useful and effective.