Tsinghua Distorted Fingerprint Database

This database is collected for studying the problem of distorted fingerprints, including distortion detection, distortion rectification, and dense registration. The database contains totally 320 pairs of normal fingerprints and distorted fingerprints from 185 different fingers. A pair of normal and distorted fingerprints are shown below.

Data collection method

Fingerprints are collected using a Fourier transform infrared spectrum (FTIR) fingerprint scanner with video acquisition functions. To generate distorted fingerprints, a volunteer firstly restrains a fingerprint with a standard posture, and then purposely adds distortion and gradually increases the distortion. After that, the acquired fingerprints are transformed into a video sequence with a frame rate of 10 frames per second and the resolution is 500 dpi. In this way, the first frame of the video can be seen as a normal fingerprint and the last frame can be seen as a corresponding distorted fingerprint. Volunteers are asked to generate 10 different distortion types as shown below.

Examples of 10 distortion types in the database

Download

You are free to download the dataset for non-commercial research and educational purposes: Tsinghua Distorted Fingerprint Database.zip

Reference

Research papers that used this database should cite the following paper.

This dataset was also used in the following papers:

and the following dense registration papers:

Contact

Contact Dr. Jianjiang Feng for further information.