Research on fast video mapping method of borehole in front view Online publication date: Sat, 13-Aug-2022
by Qunpo Liu; Qijing Wang; Ruxin Gao; Junjia Bi; Naohiko Hanajima
International Journal of Cybernetics and Cyber-Physical Systems (IJCCPS), Vol. 1, No. 2, 2022
Abstract: Camera borehole technology is widely used in borehole engineering, which can obtain the structure of deep-buried rock mass. However, when people recognise these images, there will be problems such as heavy workload, low efficiency and easy recognition errors. In order to solve these problems, this paper proposes a fast unfolding mosaic and fusion method of looped image in the forward view video. This paper proposes a borehole image expansion method with autonomous positioning of the borehole centre and adaptive adjustment of the expansion radius to achieve rapid and automatic image expansion. On this basis, an adaptive adjustment algorithm of image stitching points based on grey difference registration is proposed, which solves the defect of determining stitching points by artificial experience. The practical results show that the image mosaic technology is simple, the processing is flexible and efficient and the forward view borehole expansion map obtained has an ideal effect.
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