PDE-Based Finger Image Denoising

Finger image has attracted the interesting of researchers in biometrics recently, and the lines in it can be used for person recognition. In order to detect lines from the finger image, this paper proposes a new image denoising method. Firstly, the features of the lines in finger image are studied, and an effective edge detection algorithm is put forward. Then, the partial differentiation equations (PDE) for image denoising are defined based on the edge detection algorithm. Finally, the finite differences scheme for the PDEs is given and several experimental results are presented.