Journal
NANOTECHNOLOGY AND PRECISION ENGINEERING
Volume 4, Issue 1, Pages -Publisher
AIP Publishing
DOI: 10.1063/10.0003218
Keywords
Nanowire detection; Instance segmentation; YOLOv3; FCN; Deep learning; AFM
Funding
- National Nature Science Foundation of China [61973233, PyTorch-YOLOv3]
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This paper presents an autodetection method for flexible nanowires using a deep learning technique, utilizing YOLOv3 and FCN networks to segment nanowires in AFM images, followed by algorithms for posture and position detection, achieving high accuracy. The algorithm demonstrates over 90% reliability in the testing dataset and shows good robustness with minimal impact from image complexity.
Atomic force microscope (AFM)-based nanomanipulation has been proved to be a possible method for assembling various nanoparticles into complex patterns and devices. To achieve efficient and fully automated nanomanipulation, nanoparticles on the substrate must be identified precisely and automatically. This work focuses on an autodetection method for flexible nanowires using a deep learning technique. An instance segmentation network based on You Only Look Once version 3 (YOLOv3) and a fully convolutional network (FCN) is applied to segment all movable nanowires in AFM images. Combined with follow-up image morphology and fitting algorithms, this enables detection of postures and positions of nanowires at a high abstraction level. Benefitting from these algorithms, our program is able to automatically detect nanowires of different morphologies with nanometer resolution and has over 90% reliability in the testing dataset. The detection results are less affected by image complexity than the results of existing methods and demonstrate the good robustness of this algorithm. (C) 2021 Author(s).
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