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Different channels to transmit information in scattering media

PhotoniX 2023年第1期4卷 545-557页

作者： Xuyu Zhang Jingjing Gao Yu Gan Chunyuan Song Dawei Zhang Songlin Zhuang Shensheng Han Puxiang Lai Honglin Liu Key Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Engineering Research Center of Optical Instrument and system The Ministry of EducationShanghai Key Laboratory of Modern Optical SystemsUniversity of Shanghai for Science and TechnologyShanghai 200093China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Hangzhou Institute for Advanced study University of Chinese Academy of SciencesHangzhou 310024China Department of Biomedical Engineering The Hong Kong Polytechnic UniversityHong Kong SARChina Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000China Photonics Research Institute The Hong Kong Polytechnic UniversityHong Kong SARChina

A communication channel should be built to transmit information from one place to *** is 2 or higher dimensional information ***,an imaging channel comprises a lens with free space at its both sides,whose transfer function is usually known and hence the response of the imaging channel can be well *** the lens with a thin scattering medium,the image can still be extracted from the detected optical field,suggesting that the scattering medium retains or reconstructs not only energy but also information transmission *** by deep learning,we find that unlike the lens system,there are different channels in a scattering medium:the same scattering medium can construct different channels to match the manners of source ***,it is found that without a valid channel,the convolution law for a spatial shift-invariant system(the output is the convolution of the point spread function and the input object)is broken,and in this scenario,information cannot be transmitted onto the detection ***,valid channels are essential to transmit information through even a spatial shift-invariant *** findings may intrigue new adventures in imaging through scattering media and reevaluation of the known spatial shift-invariance in various areas.

关键词： Channels Scattering medium Point spread function Deep learning spatial shift-invariant system

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