Binarization and Thinning of Fingerprint Images by Pipelining

Two critical steps in fingerprint recognition are binarization and thinning of the image. The need for real time processing motivates us to select local adaptive thresholding approach for the binarization step. We introduce a new hardware for this purpose based on pipeline architecture. We propose a formula for selecting an optimal block size for the thresholding purpose. We also present in this paper a new pipeline structure for implementing the thinning algorithm.

Keywords:

Fingerprint , Binarization , thinning , Pipeline Processing