I got my Ph. D. degree from Beijing University of Posts & Telecommunications in 2007. Currently, I am working as a PostDoc at PRIP lab, Michigan State University. My research interests include fingerprint recognition, perceptual grouping, and matching.
Email: fjianjiang@(gmail.com)
Research
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Minutia matching - A minutiae matching algorithm has to solve two problems: correspondence and similarity computation. For the correspondence problem, we assign each minutia two descriptors: texture-based and minutiae-based descriptors, and use an alignment-based greedy matching algorithm to establish the correspondences between minutiae. For the similarity computation, we extract a 17-D feature vector from the matching result, and convert the feature vector into a matching score using support vector classifier.
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Ridge matching - Both ridge correspondences and minutia correspondences are established. The algorithm incrementally matches ridges and minutiae, and compute a matching score by considering both correspondences.
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Fingerprint indexing - It is an invariant-based indexing scheme where the invariant is computed from the relations between ridges.
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Ridge extraction -
Publications
- Jianjiang Feng, "Combining minutiae descriptors for fingerprint matching", Pattern Recognition, vol. 41, no. 1, pp. 342-352, 2008.
- Jianjiang Feng, Zhengyu Ouyang, and Anni Cai, "Fingerprint matching using ridges", Pattern Recognition, vol. 39, no. 11, pp. 2131-2140, 2006.
- Jianjiang Feng and Anni Cai, "Fingerprint indexing using ridge invariants", Proc. 18th International Conference on Pattern Recognition, 2006.
- Jianjiang Feng and Anni Cai, "Fingerprint representation and matching in ridge coordinate system", Proc. 18th International Conference on Pattern Recognition, 2006.
- Zhengyu Ouyang, Jianjiang Feng, Fei Su, and Anni Cai, "Fingerprint matching with rotation-descriptor texture features", Proc. 18th International Conference on Pattern Recognition, 2006.
- Jianjiang Feng, Zhengyu Ouyang, Fei Su, and Anni Cai, "An exact ridge matching algorithm for fingerprint verification", International Workshop on Biometric Recognition Systems, LNCS 3781, pp. 103-110, 2005.
- Jianjiang Feng, Fei Su, and Anni Cai, "Robust ridge following in fingerprints", Sinobiometrics 2004, LNCS 3338, pp. 424-431, 2004.
- Fei Su, Jianjiang Feng, Jing-ao Sun, and Anni Cai, "An approach to contrast enhancement of fingerprint image based on fuzzy logic", Computer Engineering, vol.29, no.3, 2003. (In Chinese)
- Fei Su, Jianjiang Feng, Jing-ao Sun, and Anni Cai, "Enhancement of fingerprint image based on directional texture", Sinobiometrics 2002, no.3, 2002. (In Chinese)