Abstract
A new method for analyzing underground radar images and locating buried pipes is developed. Because the underground radar images are commonly blurred by peculiar noises, it has been hard to introduce an automatic analysis for detection of buried pipes.
For this problem, using Generalized Hough transformation technique, buried pipes are located from the radar image according to their characteristic forms of the images. By this method, the micro-wave propagation speed in under-ground can be detected simultaneously from the image, so their accurate locations can be obtained.
A speed-up technique for the calculation of the Hough transformation based on the gray levels and their gradients of the radar image is also developed. Good results of buried pipe location were obtained for some actual experimental under-ground radar images.
