LAUSR

The structural and morphological characterization of deep-buried rock mass is of great significance to the construction of deep underground engineering, and the digital panoramic camera technology is an important means to obtain the structural morphology of rock mass in the borehole quickly and effectively. Faced with the highlighted problems of the borehole camera system and its analysis software in the complex environment, a method of fast mosaic and fusion of circular image from the borehole video is proposed. In this method, the borehole video is transformed into a number of ordered narrowband images, and the image features are detected and matched, so as to realize the rapid mosaic and fusion of borehole panoramic images. The results show that this method can quickly complete the continuous mosaic and fusion of narrowband images without the help of the compass and depth encoder, and the obtained image resolution is higher than before, and also the actual working time can be half with the process of automation and intelligent. This method can quickly and effectively form a high-precision panoramic image without deviation based on the inherent characteristics of the borehole video image. It can reduce the operational burden of researchers and improve the work efficiency, which promotes the development of borehole camera technology and provides a more convenient and effective technical means for deep rock mass engineering investigation.