14.6 A 0.62mW ultra-low-power convolutional-neural-network face-recognition processor and a CIS integrated with always-on haar-like face detector. Bong, K., Choi, S., Kim, C., Kang, S., Kim, Y., & Yoo, H. J. In 2017 IEEE International Solid-State Circuits Conference (ISSCC), pages 248–249, February, 2017.
doi  abstract   bibtex   
Recently, face recognition (FR) based on always-on CIS has been investigated for the next-generation UI/UX of wearable devices. A FR system, shown in Fig. 14.6.1, was developed as a life-cycle analyzer or a personal black box, constantly recording the people we meet, along with time and place information. In addition, FR with always-on capability can be used for user authentication for secure access to his or her smart phone and other personal systems. Since wearable devices have a limited battery capacity for a small form factor, extremely low power consumption is required, while maintaining high recognition accuracy. Previously, a 23mW FR accelerator [1] was proposed, but its accuracy was low due to its hand-crafted feature-based algorithm. Deep learning using a convolutional neural network (CNN) is essential to achieve high accuracy and to enhance device intelligence. However, previous CNN processors (CNNP) [2-3] consume too much power, resulting in \textless;10 hours operation time with a 190mAh coin battery.
@inproceedings{bong_14.6_2017,
	title = {14.6 {A} 0.62mW ultra-low-power convolutional-neural-network face-recognition processor and a {CIS} integrated with always-on haar-like face detector},
	doi = {10.1109/ISSCC.2017.7870354},
	abstract = {Recently, face recognition (FR) based on always-on CIS has been investigated for the next-generation UI/UX of wearable devices. A FR system, shown in Fig. 14.6.1, was developed as a life-cycle analyzer or a personal black box, constantly recording the people we meet, along with time and place information. In addition, FR with always-on capability can be used for user authentication for secure access to his or her smart phone and other personal systems. Since wearable devices have a limited battery capacity for a small form factor, extremely low power consumption is required, while maintaining high recognition accuracy. Previously, a 23mW FR accelerator [1] was proposed, but its accuracy was low due to its hand-crafted feature-based algorithm. Deep learning using a convolutional neural network (CNN) is essential to achieve high accuracy and to enhance device intelligence. However, previous CNN processors (CNNP) [2-3] consume too much power, resulting in {\textless};10 hours operation time with a 190mAh coin battery.},
	booktitle = {2017 {IEEE} {International} {Solid}-{State} {Circuits} {Conference} ({ISSCC})},
	author = {Bong, K. and Choi, S. and Kim, C. and Kang, S. and Kim, Y. and Yoo, H. J.},
	month = feb,
	year = {2017},
	keywords = {Important},
	pages = {248--249}
}

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