Scattering medium optical imaging method based on neural network

A neural network and optical imaging technology, which is applied in the field of optical imaging of scattering media based on neural networks, can solve problems such as the large amount of calculation of shaping and transmission matrix, complex operation of optical phase conjugation technology, etc., and achieve fast imaging speed, The effect of easy operation

Active Publication Date: 2019-03-12
IBE ELECTRONICS CO LTD
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Problems solved by technology

However, the calculation of wavefront shaping and transmission matrix is ​​large, and the operation of opt

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  • Scattering medium optical imaging method based on neural network
  • Scattering medium optical imaging method based on neural network
  • Scattering medium optical imaging method based on neural network

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[0022] In order to make the purpose of the present invention, technical solutions and advantages clearer, the following combination figure 1 , figure 2 and image 3 Embodiments of the present invention are further described in detail.

[0023] The embodiment of the present invention discloses a neural network-based scattering medium optical imaging method, which is realized by a neural network-based scattering medium optical imaging system, including two processes of scattering medium optical model construction and imaging.

[0024] Such as figure 1 As shown, in the neural network-based scattering medium optical imaging system, a beam of laser light emitted by the laser 1 is converged by the first lens 2, and a diaphragm 3 is placed at the focal point of the light for low-pass filtering, and then passes through 1 / 2 The wave plate 4 and the polarizing plate 5 become polarized light in the horizontal polarization direction, and then the collimated and expanded beam of the se...

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Abstract

The invention discloses a scattering medium optical imaging method based on a neural network. The method includes the steps of establishing a scattering medium optical neural network model and conducting imaging. In the step of establishing the scattering medium optical neural network model, modularization optimized signals before a scattering medium serve as the output layer of the neural networkmodel, light speckle intensity information formed after the signals penetrate through the scattering medium serve as the input layer of the model, the neural network is trained through the data of the input layer and the output layer, parameters of all middle layers in the neural network model are obtained, and therefore the specific scattering medium optical neural network model is obtained. Inthe scattering medium optical imaging process, a to-be-imaged target pattern serves as the input layer of the neural network model, light wave pre-modularized signals are calculated and output by theneural network, an incident light wave face is modularized through the pre-modularized signals, and the target image is directly formed through the scattering medium.

Description

technical field [0001] The invention relates to the field of optical imaging of scattering media, in particular to a neural network-based optical imaging method for scattering media. Background technique [0002] Light scattering media can be seen everywhere in daily life, such as clouds, fog, biological tissues, walls, table surfaces, etc. It is difficult to directly transmit through this medium to realize optical imaging because the light is scattered randomly in a large amount. The study of optical imaging technology through scattering media will be of great significance to medical imaging of biological tissues, target imaging in haze, and target imaging in turbid water bodies. In order to control the scattered light and realize the optical imaging of scattering media, people have proposed various technical means such as wavefront shaping, transmission matrix, and optical phase conjugation. However, the calculation of wavefront shaping and transmission matrix is ​​large...

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Application Information

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IPC IPC(8): G02B27/00G06N3/04
CPCG02B27/0012G06N3/045
Inventor 史丽张凯李静静
Owner IBE ELECTRONICS CO LTD
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