Live Demonstration: CNN Inference on the Focal Plane with a Pixel Processor Array

被引:0
|
作者
Carey, Stephen J. [1 ]
Bose, Laurie [2 ]
Richardson, Thomas [2 ]
Mayol-Cuevas, Walterio [2 ]
Chen, Jianing [1 ]
Dudek, Piotr [1 ]
机构
[1] Univ Manchester, Sch Elect & Elect Engn, Manchester, Lancs, England
[2] Univ Bristol, Fac Engn Aerosp & Comp Sci, Bristol, Avon, England
基金
英国工程与自然科学研究理事会;
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present a novel method of CNN inference on a pixel processor array device, demonstrating it using a handwritten digit (digits 0-9) classification task, with all steps of the neural network computation performed on the focal plane. The vision chip that we deploy (SCAMP-7) has a 256x256 array of processor elements (PE) integrated within the image sensor. The algorithm runs at over 3000 frames per second (FPS) and over 90% classification accuracy, with the sensor chip only outputting ten scalar values corresponding to the classification scores.
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