Partial Fingerprint Reconstruction with Improved Smooth Extension
Almost all existing attempts on partial fingerprints focus on one-to-one fingerprint matching using level 2 or level 3 features obtainable in the partial segment. Recently a model-based partial fingerprint reconstruction algorithm is introduced, which aims to extend the fingerprint ridge flows smoothly into the missing part from a different perspective. This novel idea has shown promising results for narrowing down the candidate lists before matching. On this basis we propose to improve the scheme of smooth extensions and take into account the boundary effect while retrieving the initial raw orientation field. The experiment results show that the orientation field reconstructed by our algorithm is more faithful to the ground truth.
Keywordspartial fingerprint orientation field smooth extension image forensic biometrics
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