期刊
IEEE PHOTONICS JOURNAL
卷 13, 期 5, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2021.3109016
关键词
Optical computing; machine learning; random media; feedforward neural networks
资金
- National Key R&D Program of China [2019YFE0112000, 2020YFF0217803]
- Zhejiang Xinmiao Talents Program [2021R409043]
- National Natural Science Foundation of China [11874332, 61727816, 61775202]
- Key R&D plan of Zhejiang Province [2021C01179]
- Zhejiang Provincial Natural Science Foundation of China [LY21F050006]
- Science and Technology Program Project of State Administration for Market Regulation [2019MK147]
The study utilized an optical random scattering system based on LCD and RGB laser source to improve image classification accuracy, achieving excellent classification accuracy of over 94% through ridge classification, suitable for data sets in medical, agricultural, environmental protection, and other fields. The proposed optical scattering system has the advantages of high speed, low power consumption, and miniaturization, making it suitable for edge computing applications.
Multiple optical scattering occurs when light propagates in a non-uniform medium. During the multiple scattering, images were distorted and the spatial information they carried became scrambled. However, the image information is not lost but presents in the form of speckle patterns (SPs). In this study, we built up an optical random scattering system based on an liquid crystal display (LCD) and an RGB laser source. We found that the image classification can be improved by the help of random scattering which is considered as a feedforward neural network to extracts features from image. Along with the ridge classification deployed on computer, we achieved excellent classification accuracy higher than 94%, for a variety of data sets covering medical, agricultural, environmental protection and other fields. In addition, the proposed optical scattering system has the advantages of high speed, low power consumption, and miniaturization, which is suitable for deploying in edge computing applications.
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