Phase Congruency and Its Application to Tubular Structure Extraction

With the development of computerized tomography, nondestructive testing technology has been widely utilized in the industry. In this paper, we try to extract the cracks contained in certain kind of workpieces from the industry, so as to predict their usability and left lifetime. The cracks are in tubular form in two-dimensional images, and many traditional tubular structure extraction methods show various difficulties in real applications. The main contribution of this paper is that an approach combining the phase congruency (PC) and phase symmetry is proposed to extract the tubular structures. Experiments on a kind of 3D workpieces from the industry against other popular methods are performed to verify the effectiveness of the proposed method.