Alternative Approach in Generating Cancellable Fingerprint by Using Matrices Operations

A cancellable biometric system aims to revote a biometric feature of an authorized person when his biometric information is misused by improper. In this system, an established biometric image is transformed to a different feature to distinguish it from the original one. Moreover, this revocable system can regenerate a new transformed cancellable biometric feature if the previous transformed feature is known by someone. These basic concepts are similar with the idea of inverse matrix and elementary row operation in matrices domain. Biometric image as a digital image definitely can be processed in matrices domain. It means that the image is able to be imposed by matrices operations such as inverse matrix operation, elementary row operation, and Kronecker product operation. In matrix, these operations are used for several objectives whether inverting matrix elements, changing rows or columns, or enlarging size of the matrix. On the other hand, the combination of these operations even can produce a non-inversed matrix.