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  2019, Vol. 32 Issue (10): 927-935    DOI: 10.16451/j.cnki.issn1003-6059.201910007
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Heterogeneous FPGA Based Convolutional Network Accelerator
ZHOU Xixiong1, ZHONG Sheng1, ZHANG Weijun1, WANG Jianhui1
1.School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074

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Abstract  Computational complexity of neural network methods is high, and its application in embedded scenarios is limited. To solve this problem, a convolutional network accelerator based on heterogeneous field programmable gate array is proposed. The sliding window is employed to accelerate the convolution calculation process, and thus the convolution process of different input and output channels can be handled. A 8 bit fixed-point accelerator is designed combining network quantization process, and the usage of computing resources is reduced. Experiments demonstrate that the proposed fixed-point accelerator achieves a higher computing speed and a lower power consumption with a less performance loss.
Key wordsConvolutional Neural Network      Field Programmable Gate Array(FPGA)      Accelerator      Parallelism      Fixed-Point     
Received: 04 June 2019     
ZTFLH: O 235  
Fund:Supported by National Natural Science Foundation of China(No.61806081)
Corresponding Authors: ZHONG Sheng, Ph.D., professor. His research interests include pattern recognition, image processing and real-time embedded system.   
About author:: ZHOU Xixiong, master student. His research interests include deep neural network and parallel computing;ZHANG Weijun, Ph.D. candidate. His research interests include computer vision and pattern recognition;WANG Jianhui, Ph.D. candidate. His research interests include computer vision, machine learning, deep neural network and pa-rallel computing.
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ZHOU Xixiong,ZHONG Sheng,ZHANG Weijun等. Heterogeneous FPGA Based Convolutional Network Accelerator[J]. , 2019, 32(10): 927-935.
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