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논문 기본 정보

자료유형
학술저널
저자정보
Hanwool Park (Handong Global University) Yechan Yoo (Handong Global University) Yoonjin Park (Handong Global University) Changdae Lee (Handong Global University) Hakkyung Lee (Handong Global University) Injung Kim (Handong Global University) Kang Yi (Handong Global University)
저널정보
Korean Institute of Information Scientists and Engineers Journal of Computing Science and Engineering Journal of Computing Science and Engineering Vol.12 No.1
발행연도
2018.3
수록면
24 - 35 (12page)
DOI
10.5626/JCSE.2018.12.1.24

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초록· 키워드

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Deep convolutional neural network (DCNN) is an advanced technology in image recognition. Because of extreme computing resource requirements, DCNN implementation with software alone cannot achieve real-time requirement. Therefore, the need to implement DCNN accelerator hardware is increasing. In this paper, we present a field programmable gate array (FPGA)-based hardware accelerator design of DCNN targeting handwritten Hangul character recognition application. Also, we present design optimization techniques in SDAccel environments for searching the optimal FPGA design space. The techniques we used include memory access optimization and computing unit parallelism, and data conversion. We achieved about 11.19 ms recognition time per character with Xilinx FPGA accelerator. Our design optimization was performed with Xilinx HLS and SDAccel environment targeting Kintex XCKU115 FPGA from Xilinx. Our design outperforms CPU in terms of energy efficiency (the number of samples per unit energy) by 5.88 times, and GPGPU in terms of energy efficiency by 5 times. We expect the research results will be an alternative to GPGPU solution for real-time applications, especially in data centers or server farms where energy consumption is a critical problem.

목차

Abstract
I. INTRODUCTION
II. BACKGROUND
III. ACCELERATOR DESIGN OPTIMIZATION TECHNIQUES
IV. IMPLEMENTATION DETAILS
V. EVALUATION
VI. CONCLUSION
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