全景钻孔图像中结构面全自动识别方法研究

doi:10.13722/j.cnki.jrme.2017.0021

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Abstract Panoramic digital cameras for boreholes have been widely employed in engineering practice，and a large number of high accuracy images of boreholes have been obtained. The borehole images record accurately the geological features，especially the structural features of the structural planes. However，since the acquisition of these features is usually undertaken manually，the workload is large and the results can be affected by many man made factors. To solve this problem，this paper presents a method of fully automatic identification of structural planes with the panoramic camera images of borehole. In this method，the gray level of images，the gradient and the projection method are employed to distinguish the region and the area of the structural plane occurrence. The standard sine function matching is employed to search the structural plane in the region. The optimal sine curve is screened out and adopted as the feature curve of structure plane. The parameters of the feature curve are analyzed and converted into the parameters of the structural plane required in engineering projects，such as the position，the inclination，the dip angle and the fracture width，etc. The results show that the method can automatically identify the structural plane with the borehole image continuously and quickly and can obtain the corresponding structural parameters accurately. The method is stable and reliable. Compared with the traditional methods，this method realizes the fully automatic identification of the whole structural planes and the extraction of geometric parameters. It improves greatly the working efficiency，and provides an effective solution for the post processing and information acquisition of the borehole image.

Key words： rock mechanics borehole image structural plane full-automatic identification template function parameter extraction

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	Articles by authors
	ZOU Xianjian1
	2
	WANG Chuanying1
	HAN Zengqiang1
	WANG Jincaho1
	WANG Yiteng1
	SONG Huan2

Cite this article:

ZOU Xianjian1,2,WANG Chuanying1, et al. Fully automatic identifying the structural planes with panoramic images of boreholes[J]. , 2017, 36(8): 1910-1920.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0021 OR http://www.rockmech.org/EN/Y2017/V36/I8/1910

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