A Low-Power Convolutional Neural Network Face Recognition Processor and a CIS Integrated With Always-on Face Detector.

A Low-power convolutional neural network (CNN)-based face recognition system is proposed for the user authentication in smart devices. The system consists of two chips: an always-on CMOS image sensor (CIS)-based face detector (FD) and a low-power CNN processor. For always-on FD, analog-digital Hybrid Haar-like FD is proposed to improve the energy efficiency of FD by 39%. For lowpower CNN processin...