Fingerprint minutia extraction algorithm based on DSP

This paper presents a new fingerprint minutia extraction algorithm based on DSP. The traditional fingerprint recognition algorithm requires a lot of time to do the binarization and thinning for fingerprint image. Different from traditional fingerprint minutiae extraction algorithm, the proposed algorithm makes some improvements based on Direct Minutia Extraction algorithm. It improves the accuracy and anti-interference ability of minutia extraction. First, the algorithm is divided into the fingerprint image pre-processing stage and the minutia extraction stage. In the image preprocessing stage, a lot of filtering and enhancement will be done to facilitate the extraction of minutia. In the minutia extraction stage, ridge line tracing algorithm is used to analyze and extract each minutia on every ridge line. It is confirmed through experiment that our algorithm is apparently faster than the traditional ones.