A Resource-Efficient Embedded Iris Recognition System Using Fully Convolutional Networks
A Resource-Efficient Embedded Iris Recognition System Using Fully Convolutional Networks
复制标题
使用全卷积网络的资源高效型嵌入式虹膜识别系统
DOI:
10.1145/3357796
复制
发表时间:
2020
影响因子:
2.2
通讯作者:
Reda, Sherief
中科院分区:
文献类型:
--
作者:
Tann, Hokchhay;Zhao, Heng;Reda, Sherief
Applications of fully convolutional networks (FCN) in iris segmentation have shown promising advances. For mobile and embedded systems, a significant challenge is that the proposed FCN architectures are extremely computationally demanding. In this article, we propose a resource-efficient, end-to-end iris recognition flow, which consists of FCN-based segmentation and a contour fitting module, followed by Daugman normalization and encoding. To attain accurate and efficient FCN models, we propose a three-step SW/HW co-design methodology consisting of FCN architectural exploration, precision quantization, and hardware acceleration. In our exploration, we propose multiple FCN models, and in comparison to previous works, our best-performing model requires 50× fewer floating-point operations per inference while achieving a new state-of-the-art segmentation accuracy. Next, we select the most efficient set of models and further reduce their computational complexity through weights and activations quantization using an 8-bit dynamic fixed-point format. Each model is then incorporated into an end-to-end flow for true recognition performance evaluation. A few of our end-to-end pipelines outperform the previous state of the art on two datasets evaluated. Finally, we propose a novel dynamic fixed-point accelerator and fully demonstrate the SW/HW co-design realization of our flow on an embedded FPGA platform. In comparison with the embedded CPU, our hardware acceleration achieves up to 8.3× speedup for the overall pipeline while using less than 15% of the available FPGA resources. We also provide comparisons between the FPGA system and an embedded GPU showing different benefits and drawbacks for the two platforms.
影响因子:
0.9
作者:
Guangzhu Xu;Zaifeng Zang;Yide Ma
通讯作者:
Yide Ma
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
Ahmad Poursaberi;Babak Nadjar Araabi
通讯作者:
Babak Nadjar Araabi
影响因子:
1.4
作者:
Mariano López;J. Daugman;E. Cantó
通讯作者:
E. Cantó