The invention relates to a robust splicing method for an inner wall image of a
drill hole under a multi-interference
imaging condition. The method specifically comprises the following steps: S1, expanding an acquired front-view shot inner wall image of the
drill hole into a narrow-band image; s2, registering the expanded narrow-band images of the front frame and the rear frame, and determining the vertical offset and the horizontal offset of the
reference image and the image to be spliced by adopting a grid acceleration-based
template matching method; s3, determining an overlapping region of the
reference image and the to-be-spliced image according to the offset, and fusing pixels in the overlapping region to obtain a spliced result image of the inner wall image of the
drill hole; and S4, repeating the steps S1 to S3, splicing frame by frame until
well logging is completed, and obtaining a
panorama of the borehole inner wall image. According to the method, the
image splicing problem caused by poor illumination conditions, loss or inaccuracy of reading of an electronic
compass and a depth counter and lens rotation disturbance in actual
logging operation can be effectively solved, and a smooth borehole inner wall
panorama splicing result can be stably obtained.