Fast palmprint retrieval using principal lines

In this paper, we propose a novel palmprint retrieval scheme based on principal lines. In the proposed scheme, the principal lines are firstly extracted by the modified finite radon transform. And then, a lot of key points located in three principal lines i.e. heart line, life line and head line are detected. Finally, the palmprints are retrieved by several key points´ position and direction. The results of experiments conducted on PolyU palmprint database show that the proposed scheme is feasible and has high accurate retrieval rate with fast speed.