Image Processing for Automatic Lineament Analysis.
Peters-DC; Speirer-RA; Moll-SH
Proc of Geotech'84 Denver Colorado am Inst Prof Geol Denver Colorado 1986 :88-91
This paper describes research by the Bureau of Mines on the use of remote sensing methods to evaluate potentially hazardous ground control conditions in underground mines. Computer processing of image and nonimage data is used to provide an estimate of potential mine hazards by identification of surface lineaments related to geologic structures. This approach to lineament analysis by computer involves a refinement of landsat images to enhance linear information contained within the image data and to suppress nonlineament data. Since lineaments exhibit a moderate change in brightness compared with their surroundings, these contrasts can be ignored. The remaining data are enhanced to exaggerate the lineament information by applying a series of square, high-pass filters of different sizes (to enhance lineaments of different lengths), complex contrast stretches, and edge enhancement methods. Line-plotting of these individual readings produces a map of the existing faults and fractures.
Proc. of Geotech'84, Denver, Colorado, Am. Inst. Prof. Geol., Denver, Colorado, 1986, PP. 88-91