Palmprint Template Protection Scheme with Matrix Transformation

In this paper, we proposed a palmprint template protection scheme based on matrix transformation. Firstly, the competition code features of original palmprint is extracted through the Gabor filters. Then, a general permutation matrix is generated randomly and two elementary permutation matrices are obtained by changing any two rows of it. Nextly, irreversible matrix is generated by XORing operation. Finally, cancelable palmprint templates are produced by multiplying the irreversible matrix and the original palmprint feature. Our experiments were carried out in a public database of Hong Kong Polytechnic University. The experimental results show that our cancelable palmprint scheme can not only ensure high safety but also meet the recognition accuracy requirements.