S. D. Thepade - Computer Engineering Department, Pimpri Chinchwad College of Engineering, Pune, India
M. R. Dindorkar - Computer Engineering Department, Pimpri Chinchwad College of Engineering, Pune, India
P. R. Chaudhari - Computer Engineering Department, Pimpri Chinchwad College of Engineering, Pune, India
S. V. Bang - Computer Engineering Department, Pimpri Chinchwad College of Engineering, Pune, India

The evolution and improvements of deep learning are being used to tackle any research obstacles that could be converted into classification problems in all spheres of life. Each Deep convolutional neural network (DCNN) design's output is determined by the depth and value of the hyperparameters, which explains why so many of them have been proposed. These DCNN architectures must be created entirely from scratch, and they can only be used for the applications for which they were intended. Transfer learning may be used to modify these pre-trained networks so they are more appropriate for particular purposes. This article aims to evaluate the empirical performance of the applicability of pre-trained DCNN models to identify human face presentation threats (FPAD). Human FPAD is one of the most significant and crucial areas of research right now because of the introduction of ambient computing, which necessitates contact-free identification of persons with the help of their biometric traits. Six pre-trained DCNN models are taken into account for an experimental evaluation in human FPAD alias VGG۱۹, VGG۱۶, DensNet۱۲۱, MobileNet, Xception,  and InceptionV۳. The investigation makes use of the NUAA and Replay-Attack benchmark FPAD datasets. Thepade's sorted block truncation coding (SBTC) ۱۰-ary features are merged with deep learning features produced from the finest performing finetuned DCNNs to enhance the FPAD capabilities of analyzed machine learning (ML) classifiers. The integration of features of Thepade's SBTC ۱۰-ary and DCNN has considerably increased the FPAD accuracy of ML classifiers with slightly more computations of feature extraction.

Face presentation attack, Transfer learning, DensNet۱۲۱, VGG۱۶, Xception, VGG۱۹, Pretrained deep CNN, InceptionV۳, MobileNet, Thepade's SBTC