GEOLOGICAL LINEAR BODY EXTRACTION METHOD BASED ON TENSOR VOTING COUPLED WITH HOUGH TRANSFORM

摘要

The present invention provides geological linear body extraction method based on tensor voting coupled with Hough transform, comprising the following steps: pre-processing a remote sensing image, so as to obtain a pre-processed remote sensing image; selecting three optimal wavebands from N multi-spectral wavebands of the pre-processed remote sensing image, so as to obtain a remote sensing image combined by the optimal wavebands, N being a natural number greater than or equal to 3; using Gaussian high-pass filtering to perform sharpening processing on the remote sensing image combined by the optimal wavebands, so as to enhance linearized edge information; performing edge detection on the remote sensing image having enhanced linearized edge information, so as to obtain all edge points in the remote sensing image; and converting all edge points in the remote sensing image from an image coordinate system to a parameter coordinate system, and extracting a geological linear body from the parameter coordinate system. The present invention relies less on the knowledge and experience of interpretation experts, shortening the time of processing, saving a vast amount of manpower, having a stronger practical value and a promotion meaning.