基于双锥面镜成像的钻孔摄像系统研究
发布时间：2018-10-19 10:13
【摘要】：为了突破以往钻孔成像技术的基本假设(钻孔孔壁是圆柱面)和平面成像问题,从而实现钻孔内岩体结构的真三维成像,自主研发了一套基于双锥面镜成像的钻孔摄像系统。该系统主要由组合式双锥面镜、罗盘、光源、遮光罩、摄像装置和透明玻璃等部件组成,并给出了孔内双锥面镜立体像对成像的方法和全景像对图像的解算公式。通过系统测试与结果分析可知,该系统可以从2个不同角度对同一孔壁结构特性进行像对成像,并得到钻孔孔径的形态变化特征和孔壁细节的差异特征,实现了孔内360°岩体结构的全景立体像对成像和精细化探测。该系统设计巧妙、结构简单、易于实施,提高了对孔壁岩体细微结构的识别能力和探测的精度,有效推动了钻孔摄像技术的发展。
[Abstract]:In order to break through the basic assumptions of borehole imaging (the borehole wall is a cylindrical surface) and plane imaging, and realize the true three-dimensional imaging of rock mass structure in borehole, a borehole imaging system based on double-cone mirror imaging is developed. The system is mainly composed of combined double conical mirror, compass, light source, shade, camera device and transparent glass. The imaging method of the stereo image pair of the double conical mirror in the hole and the calculating formula of the panoramic image pair are given. Through the system test and the analysis of the results, it can be seen that the system can image the structure characteristics of the same hole from two different angles, and obtain the morphological variation characteristics of the borehole aperture and the different characteristics of the hole wall details. The panoramic stereo imaging and fine detection of 360 掳rock mass structure in the hole are realized. The system is skillful in design, simple in structure and easy to implement. It improves the recognition ability and detection precision of the fine structure of the borehole rock mass, and effectively promotes the development of the borehole camera technology.
【作者单位】： 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室;
【基金】：国家自然科学基金资助项目(41402278,41372317)~~
【分类号】：TU45
，
本文编号：2280825
[Abstract]:In order to break through the basic assumptions of borehole imaging (the borehole wall is a cylindrical surface) and plane imaging, and realize the true three-dimensional imaging of rock mass structure in borehole, a borehole imaging system based on double-cone mirror imaging is developed. The system is mainly composed of combined double conical mirror, compass, light source, shade, camera device and transparent glass. The imaging method of the stereo image pair of the double conical mirror in the hole and the calculating formula of the panoramic image pair are given. Through the system test and the analysis of the results, it can be seen that the system can image the structure characteristics of the same hole from two different angles, and obtain the morphological variation characteristics of the borehole aperture and the different characteristics of the hole wall details. The panoramic stereo imaging and fine detection of 360 掳rock mass structure in the hole are realized. The system is skillful in design, simple in structure and easy to implement. It improves the recognition ability and detection precision of the fine structure of the borehole rock mass, and effectively promotes the development of the borehole camera technology.
【作者单位】： 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室;
【基金】：国家自然科学基金资助项目(41402278,41372317)~~
【分类号】：TU45
，
本文编号：2280825
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