Athermalization of infrared dual field optical system based on wavefront coding

Jiang, Keyong; Jiang, Bo; Liu, Kai; Yan, Peipei; Duan, Jing; Shan, Qiusha

doi:10.1117/12.2257873

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2023

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“…The final image can be obtained by filtering the middle blurred image. The infrared optical system athermalisation is well realized [9] . n Hx y   (10) Where y is coding image of wavefront coding imaging system, H is the degenerate operator os the PSF, x is decoding image, n is system noise.…”

Section: 、 Experimentationmentioning

confidence: 99%

Athermalization of infrared continuous zoom optical system based on wavefront coding

Jiang¹,

Chen²,

Zhang³

et al. 2023

Ninth Symposium on Novel Photoelectronic Detection Technology and Applications

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Section: 、 Experimentationmentioning

confidence: 99%

Athermalization of infrared continuous zoom optical system based on wavefront coding

Jiang¹,

Chen²,

Zhang³

et al. 2023

Ninth Symposium on Novel Photoelectronic Detection Technology and Applications

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“…Therefore, it has wide application prospects in many fields. For example, WFC can increase the image plane defocus allowed by the system and solve the problems of image plane deviation and imaging quality degradation caused by the influence of external environment changes in infrared optical systems and space optical systems [2,3]. For optical microscopic imaging, the characteristic of WFC of enlarging focal depth is helpful for optical microscopy to observe three-dimensional objects and obtain clear fault images [4].…”

Section: Introductionmentioning

confidence: 99%

Extended Depth-of-Field Imaging Using Multi-Scale Convolutional Neural Network Wavefront Coding

Zhou,

Wu,

Guo

et al. 2023

Electronics

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Wavefront encoding (WFC) is a depth-of-field (DOF) extension technology that combines optical encoding and digital decoding. The system extends DOF at the expense of intermediate image quality and then decodes it through an image restoration algorithm to obtain a clear image. Affected by point spread differences, traditional decoding methods are often accompanied by artifacts and noise amplification problems. In this paper, based on lens-combined modulated wavefront coding (LM-WFC), we simulate the imaging process under different object distances, generate a simulation data set of WFC, and train a multi-scale convolutional neural network. The simulation experiment proves that this method can effectively reduce artifacts and improve image clarity. In addition, we used the LM-WFC camera to obtain real scene images with different target distances for experiments. The decoding results showed that the network model can enhance the quality of image restoration and generate clear images that are more in line with human vision, which is conducive to the improvement and practical application of wavefront coding systems.

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Athermalization of infrared dual field optical system based on wavefront coding

Cited by 2 publications

References 1 publication

Athermalization of infrared continuous zoom optical system based on wavefront coding

Athermalization of infrared continuous zoom optical system based on wavefront coding

Extended Depth-of-Field Imaging Using Multi-Scale Convolutional Neural Network Wavefront Coding

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