Predicting Real‐Time Spectra from High‐Speed Imaging: An Ultrafast Machine Vision Framework for Online Optical Control in Microfluidics
Predicting Real‐Time Spectra from High‐Speed Imaging: An Ultrafast Machine Vision Framework for Online Optical Control in Microfluidics
复制标题
从高速成像预测实时光谱:用于微流体在线光学控制的超快机器视觉框架
DOI:
10.1002/admt.202101344
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发表时间:
2022-06
期刊:
影响因子:
--
通讯作者:
Changchun Wang
中科院分区:
文献类型:
--
作者:
Xucheng Zhang;Jia Guo;Changchun Wang
Automated laboratory pipelines empowered by the advent of artificial intelligence (AI) have been reshaping the paradigm of chemical and material discovery. While intelligent decision-making strategies have been developed that enable fast convergence to optimal reaction conditions, the overall efficiency is still bottlenecked by the slow acquisition of online characterization units, especially in microfluidics-based systems. In response, an ultrafast machine vision framework is hereby developed to directly predict optical spectra from real-time high-speed imaging in this article. Utilizing uniquely engineered deep-learning algorithms, this framework automatically detects droplets and recapitulates high-quality spectra from embedded image features in a sub-millisecond timeframe. In a proof-of-concept example, droplets are detected with an average precision of 99.75% within 0.51 ms, and their spectra spanning the entire visible wavelengths are predicted with an average peak error of 5.32 nm, which is equivalent to 1.6% of the visible range. The work demonstrates the first example of an all-imaging-based machine learning framework deployed in a real-time environment for the full replacement of an analytical instrument. It highlights the broader possibility of AI in material researches to break the physical limitations of online diagnostics and to further boost efficiencies in self-driving laboratories.
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