Abstract:

In order to realize the computer-aided working and informationlized management of geologic logging, this paper presents a geologic logging information system based on digital image for slop engineering. The proposed system, which is based on the theory of photogrammetry, integrates the techniques of close-rang photogrammetry, di- gital image processing, engineering geology and geographic information system （GIS）, captures images by common digital camera, and processes geometry information in a photogrammetric way. Thus, it decreases the demands for professional equipment and logging skills, and implements the collection, processing, management, analysis and product-outpuning of geologic logging data. Theoretical results and practical applications show that the proposed geologic logging information system is of a mean square error of less than 0.3m which satisfies the corresponding criterion.

Key words: Slope, geologic logging, special information system, photogrammetry, digital image