基于数码影像的边坡工程地质编录信息系统

Geologic Logging Information System Based on Digital Image for Slope Engineering

为实现地质编录技术向计算机辅助作业和信息化管理的转变,以摄影测量理论为基础,将近景摄影测量、数字图像处理、工程地质学和地理信息系统等多学科技术交叉集成,构建了一个面向边坡工程的影像地质编录信息系统.该系统采用普通数码相机成像技术,并基于摄影测量方法进行几何信息处理,使影像地质编录对专门设备及专业技能的要求大大降低,全面实现了边坡工程地质编录的数据采集、处理、管理、分析和成果输出等.理论精度和实际应用结果表明,边坡影像地质编录的中误差一般远小于0.3m,达到工程地质编录的规范要求.

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.