Lensless imaging with a programmable Fresnel zone aperture

IF 11.7 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Xu Zhang, Bowen Wang, Sheng Li, Kunyao Liang, Haitao Guan, Qian Chen, Chao Zuo
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引用次数: 0

Abstract

Optical imaging has long been dominated by traditional lens-based systems that, despite their success, are inherently limited by size, weight, and cost. Lensless imaging seeks to overcome these limitations by replacing lenses with thinner, lighter, and cheaper optical modulators and reconstructing images computationally, while facing trade-offs in image quality, artifacts, and flexibility inherent in traditional static modulation. Here, we propose a lensless imaging method with programmable Fresnel zone aperture (FZA), termed LIP. With a commercial liquid crystal display, we designed an integrated LIP module and demonstrated its capability of high-quality artifact-free reconstruction through dynamic modulation and offset-FZA parallel merging. Compared to static-modulation approaches, LIP achieves a 2.5× resolution enhancement and a 3 decibels improvement in signal-to-noise ratio in “static mode” while maintaining an interaction frame rate of 15 frames per second in “dynamic mode.” Experimental results demonstrate LIP’s potential as a miniaturized platform for versatile advanced imaging tasks like virtual reality and human-computer interaction.

Abstract Image

利用可编程菲涅尔区孔径进行无透镜成像
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来源期刊
Science Advances
Science Advances 综合性期刊-综合性期刊
CiteScore
21.40
自引率
1.50%
发文量
1937
审稿时长
29 weeks
期刊介绍: Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.
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