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针对现行水电工程、地下工程施工地质编录方法的不足,联合应用近景摄影测量、图象处理和GIS技术设计开发了基于数码相机的地质编录信息系统。在探讨数码相机的方位元素控制、正射影像制作的基础上,着重研究了高边坡、隧道的构造线(构造面)及其产状信息的三种提取模式,在自行设计与开发的摄影地质编录信息系统中具体实现了这些信息的快速编录。经与实地数据比较,该方法速度快、且有较高的精度。
In view of the shortage of geological cataloging method of current hydropower project and underground engineering construction, the geologic cataloging information system based on digital camera is designed and developed by the combination of close-range photogrammetry, image processing and GIS technology. On the basis of discussing azimuth element control and orthophoto production of digital camera, this paper focuses on three extraction modes of high slope and tectonic line (structure plane) of tectonics and their producing information. In the self-designed and developed photography Geological cataloging information system to achieve the rapid cataloging of these information. Compared with the field data, the method is fast and has high precision.