A PCB Electronic Components Detection Network Design Based on Effective Receptive Field Size and Anchor Size Matching

Author:

Li Jing12ORCID,Li Weiye3,Chen Yingqian3ORCID,Gu Jinan1ORCID

Affiliation:

1. School of Mechanical Engineering, Jiangsu University, Zhenjiang 212000, China

2. School of Electronic Information and Electrical Engineering, Anyang Institute of Technology, Anyang 455000, China

3. School of Mechanical and Electrical Engineering, Guangdong University of Technology, Guangzhou 510006, China

Abstract

Vision-based recognizing and positioning of electronic components on the PCB (printed circuit board) can improve the quality inspection efficiency of electronic products in the manufacturing process. With the improvement of the design and the production process, the electronic components on the PCB show the characteristics of small sizes and similar appearances, which brings challenges to visual object detection. This paper designs a real-time electronic component detection network through effective receptive field size and anchor size matching in YOLOv3. We make contributions in the following three aspects: (1) realizing the calculation and visualization of the effective receptive field size of the different depth layers of the CNN (convolutional neural network) based on gradient backpropagation; (2) proposing a modular YOLOv3 composition strategy that can be added and removed; and (3) designing a lightweight and efficient detection network by effective receptive field size and anchor size matching algorithm. Compared with the Faster-RCNN (regions with convolutional neural network) features, SSD (single-shot multibox detectors), and original YOLOv3, our method not only has the highest detection mAP (mean average precision) on the PCB electronic component dataset, which is 95.03%, the smallest parameter size of the memory, about 1/3 of the original YOLOv3 parameter amount, but also the second-best performance on FLOPs (floating point operations).

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

General Mathematics,General Medicine,General Neuroscience,General Computer Science

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