Machine vision for vial positioning detection toward the safe automation of material synthesis

• URL: http://arxiv.org/abs/2206.07272v1
• Date: Wed, 15 Jun 2022 03:19:25 GMT
• Title: Machine vision for vial positioning detection toward the safe automation of material synthesis
• Authors: Leslie Ching Ow Tiong, Hyuk Jun Yoo, Na Yeon Kim, Kwan-Young Lee, Sang Soo Han, Donghun Kim
• Abstract summary: We report a novel deep learning (DL)-based object detector, namely, DenseSSD. DenseSSD achieved a mean average precision (mAP) over 95% based on a complex dataset involving both empty and solution-filled vials. This work demonstrates that DenseSSD is useful for enhancing safety in an automated material synthesis environment.
• Score: 0.4893345190925178
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Although robot-based automation in chemistry laboratories can accelerate the material development process, surveillance-free environments may lead to dangerous accidents primarily due to machine control errors. Object detection techniques can play vital roles in addressing these safety issues; however, state-of-the-art detectors, including single-shot detector (SSD) models, suffer from insufficient accuracy in environments involving complex and noisy scenes. With the aim of improving safety in a surveillance-free laboratory, we report a novel deep learning (DL)-based object detector, namely, DenseSSD. For the foremost and frequent problem of detecting vial positions, DenseSSD achieved a mean average precision (mAP) over 95% based on a complex dataset involving both empty and solution-filled vials, greatly exceeding those of conventional detectors; such high precision is critical to minimizing failure-induced accidents. Additionally, DenseSSD was observed to be highly insensitive to the environmental changes, maintaining its high precision under the variations of solution colors or testing view angles. The robustness of DenseSSD would allow the utilized equipment settings to be more flexible. This work demonstrates that DenseSSD is useful for enhancing safety in an automated material synthesis environment, and it can be extended to various applications where high detection accuracy and speed are both needed.

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