Texture-Invariant Detection Method for Tire Crack

The paper proposed a new image-based detection method for tire crack-defect according to projection of density of lines(PODOL).First,the PODOL curves are computed from the tire image and their modulus curves of first order derivative are evaluated.Then,a new feature curve is defined and extracted from the first order derivative modulus curves.It will be employed as a new criterion for detecting the crack-defects.The experimental results show that the proposed method is texture-invariant and can be applied to detect crack-defects in tire images efficiently.The proposed method has been used in real-time online tire detection.