A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System

A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the...

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Autores principales:	Qing Ye, Yunlong Wu, Yangliang Li, Hao Zhang, Lei Wang, Xiaoquan Sun
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cat-eye laser echo retroreflection reduction wavefront coded imaging system Fresnel–Kirchhoff diffraction theory Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/3784371f685442ba813e380cf7b054ae
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spelling	oai:doaj.org-article:3784371f685442ba813e380cf7b054ae2021-11-25T17:18:57ZA Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System10.3390/cryst111113662073-4352https://doaj.org/article/3784371f685442ba813e380cf7b054ae2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1366https://doaj.org/toc/2073-4352A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the Fresnel–Kirchhoff diffraction theory, and the definition of generalized pupil function combining both phase modulation and defocus factors, the cat-eye echo formation of the wavefront coded imaging system is theoretically modeled. Based on the physical model, the diffracted spot profile distribution and the light intensity distribution on the observation plane are further simulated with the changes in the defocus parameter and the phase modulation coefficient. A verification test on the cat-eye laser echo power of the wavefront coded imaging system and that of the conventional imaging system at a 20 m distance are conducted, respectively. Simulations and experiment results show that compared with conventional imaging systems, the wavefront coding imaging system can reduce the retroreflection echo by two orders of magnitude while maintaining better imaging quality through defocusing.Qing YeYunlong WuYangliang LiHao ZhangLei WangXiaoquan SunMDPI AGarticlecat-eye laser echoretroreflection reductionwavefront coded imaging systemFresnel–Kirchhoff diffraction theoryCrystallographyQD901-999ENCrystals, Vol 11, Iss 1366, p 1366 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cat-eye laser echo retroreflection reduction wavefront coded imaging system Fresnel–Kirchhoff diffraction theory Crystallography QD901-999
spellingShingle	cat-eye laser echo retroreflection reduction wavefront coded imaging system Fresnel–Kirchhoff diffraction theory Crystallography QD901-999 Qing Ye Yunlong Wu Yangliang Li Hao Zhang Lei Wang Xiaoquan Sun A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
description	A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the Fresnel–Kirchhoff diffraction theory, and the definition of generalized pupil function combining both phase modulation and defocus factors, the cat-eye echo formation of the wavefront coded imaging system is theoretically modeled. Based on the physical model, the diffracted spot profile distribution and the light intensity distribution on the observation plane are further simulated with the changes in the defocus parameter and the phase modulation coefficient. A verification test on the cat-eye laser echo power of the wavefront coded imaging system and that of the conventional imaging system at a 20 m distance are conducted, respectively. Simulations and experiment results show that compared with conventional imaging systems, the wavefront coding imaging system can reduce the retroreflection echo by two orders of magnitude while maintaining better imaging quality through defocusing.
format	article
author	Qing Ye Yunlong Wu Yangliang Li Hao Zhang Lei Wang Xiaoquan Sun
author_facet	Qing Ye Yunlong Wu Yangliang Li Hao Zhang Lei Wang Xiaoquan Sun
author_sort	Qing Ye
title	A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
title_short	A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
title_full	A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
title_fullStr	A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
title_full_unstemmed	A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
title_sort	retroreflection reduction technique based on the wavefront coded imaging system
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3784371f685442ba813e380cf7b054ae
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A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System

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