Fundamental research on the fingerprint recognition algorithm

With the further need for security, the fingerprint pattern recognition technology began to be used in various fields, from the theoretical field to practice. Digital fingerprint processing concerns the algorithms and processes of automated fingerprint image processing, feature measurement, detail description, pattern analysis, recognition and classification by the computer instead of manual. In this article, four modules for fingerprint identification are introduced: the modules for fingerprint image sampling, for image pre-processing algorithm, for feature extraction and for feature matching algorithm. Finally this article gives the completed procedure of the fingerprint image processing and feature extraction.