Processing Of Remote Sensing Image And Study Of The Ore-fining In The Yuanbaoshan Area Of Guangxi

Remote sensing image is the foundation of Remote sensing ore-finding, and remote sensing ore-finding information extracting is the key of remote sensing ore-finding. The author of this paper selected Yuanbaoshan area of Guangxi, on the famous remote sensing image processing system of PCI 7.0 from Canada, processed the TM image of this area obtained by America's Landsat-5. Firstly, I did image mosaic, geometric correction, image enhancement, band-ratio analysis, and so on, enhanced and interpreted a lot of tectonic and concealed rock of this area. Then I studied alterative rocks and wall rocks' spectrum characters and difference within TM bands, hereby, the model to enhance and extract the remote sensing information of mineralized alteration was established, the remote sensing information of rnineralized alteration was extracted by the "TM mask + principal analysis + band-ratio analysis". Finally, in the system of Maplnfo 6.0,1 firstly integrated the geology map, remote sensing interpretation map, and mineratizied alteration information map extracted from the remote sensing image, analyzed synthetically the ore-forming geological background and the ore-controlling factors of this area, made out the ore-finding forecast, confirmed four ore-finding forecast zones, which will be important instructing meaning to production and ore-finding in the future.