English

Hand-Drawn Electrical Circuit Recognition using Object Detection and Node Recognition

Computer Vision and Pattern Recognition 2021-11-30 v2 Image and Video Processing

Abstract

With the recent developments in neural networks, there has been a resurgence in algorithms for the automatic generation of simulation ready electronic circuits from hand-drawn circuits. However, most of the approaches in literature were confined to classify different types of electrical components and only a few of those methods have shown a way to rebuild the circuit schematic from the scanned image, which is extremely important for further automation of netlist generation. This paper proposes a real-time algorithm for the automatic recognition of hand-drawn electrical circuits based on object detection and circuit node recognition. The proposed approach employs You Only Look Once version 5 (YOLOv5) for detection of circuit components and a novel Hough transform based approach for node recognition. Using YOLOv5 object detection algorithm, a mean average precision (mAP0.5) of 98.2% is achieved in detecting the components. The proposed method is also able to rebuild the circuit schematic with 80% accuracy with a near-real time performance of 0.33s per schematic generation.

Keywords

Cite

@article{arxiv.2106.11559,
  title  = {Hand-Drawn Electrical Circuit Recognition using Object Detection and Node Recognition},
  author = {Rachala Rohith Reddy and Mahesh Raveendranatha Panicker},
  journal= {arXiv preprint arXiv:2106.11559},
  year   = {2021}
}

Comments

10 pages. 8 figures, under review in springer

R2 v1 2026-06-24T03:27:17.224Z