Automatic Detection of Rock Mass Discontinuity Trace Based on Digital Image Processing
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摘要: 提出了一种自动检测岩体结构面迹线的方法,该方法通过特征过滤技术,处理边缘检测结果,利用结构面信息和非结构面噪声在像素连通区域上特定数学特征的普遍差异,滤除非结构面噪声,只保留结构面信息,从而直接提取结构面迹线。以甘肃北山花岗岩岩体露头面图像为研究对象,并利用该方法对其进行了MATLAB图像处理,得出岩体结构面迹线图。结果表明,对于结构面数量较多且分布复杂的岩体露头面图像,该方法能够快速且较为准确完整地自动检测出结构面迹线。Abstract: A new methodology was presented for automatic detection of rock mass discontinuity trace.Based on edge detection and filter of characteristic,using of the differences of specific mathematical features on the connected pixel region between discontinuity information and non-discontinuity noise,non-discontinuity noise was filtered out and discontinuity information was left by this new methodology.Then,the discontinuity traces were detected automatically.Taking the image of rock mass discontinuity in Beishan for example,the image was processed in MATLAB by this methodology.The results showed that for a large variety of complex discontinuity image,the methodology can quickly and accurately detect the trace of rock mass discontinuity automatically.
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Key words:
- rock mass discontinuity /
- edge detection /
- filter of characteristic /
- automatic detection
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