| The automatic fingerprint identification system is introduced in this paper, it is developed according to a specific task which uses fingerprint identification technology to carry out identity identification. This system includes three modules: fingerprint collection, fingerprint identification and fingerprint verification. Fingerprint collection is responsible of acquiring fingerprint image. Fingerprint identification module includes the preprocessing of fingerprint, feature extraction, the classing of fingerprint as well as matching, the establishment of fingerprint storehouse. This part is the focal point of this paper, introduces every partial principles and processing and practices the algorithm of each part after these, the author analyses testing result in detail. In fingerprint verification modular, the fingerprint that will be gathered compare with the fingerprint in fingerprint storehouse, determining that whom the people of fingerprint is. Applying fingerprint identification technology in door access system is just the last purpose that the paper researched and developed. This paper introduces the principle and composition of door access system based on fingerprint as well as software process of door access system based on fingerprint. Finally, the author summarizes the theories mentioned and all work done and pointes out some work in remain for perfecting in the future. |
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