Optimal Score Level Fusion for Multi-Modal Biometric System with Optimised Deep Ensemble Technique

ABSTRACT

Multi-modal biometric refers to the use of various biometric indicators for individual identification by personal recognition systems. When compared to unimodal biometrics, which uses only one biometric data, such as a fingerprint, face, palm print or iris, multi-modal authentication offers a higher degree of authentication. A new optimal score value that fuses deep learning and multi-modal biometrics would be produced in the project study. A proposed approach was split into three main groups: feature extraction, pre-processing and ensemble recognition. First, median filtering and ROI procedures were utilised for pre-processing-captured original biometric information for the wrist, dorsal, palm vein and palm print. Pertinent features are then retrieved from the corresponding preprocessed images for every modality. These extracted features are subjected to an imposter or genuine determination. Neural Network 1, Neural Network 2 and Deep Convolution Neural Network create a new deep ensemble model in the event of a forgery or accurate estimation (DCNN). The outputs of NN1 and NN2 are the inputs to DCNN, which provides information on whether the biometric data are authentic or not. Finally, the results are fine-tuned by the weight of DCNN utilising new hybrid optimisation scheme referred as Butterfly combined Tunicate Swarm Optimisation (BTSA).

KEYWORDS:

• Biometric recognition
• multi-modal biometrics
• imposter or genuine determination
• ensemble classifier BTSA

Disclosure statement

No potential conflict of interest was reported by the author(s).