“…However, these deep learning-based approaches, while effective, are very computationally expensive and time consuming [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. In addition, studies deploying deep learning algorithms in multimodal biometric systems [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ] begin the experimentation process by applying region detection methods prior to entering data into deep learning model. The use of region detection methods requires first selecting a suitable technique for a particular trait, also, the process can be time-consuming [ 1 ].…”