Lensless Infrared Image Processing Method Based on Fresnel Aperture

Dexing Liu,Jiaxin Shi,Yunkui Zhang,Ming Cai, Guanhao Cui,Qingchen Niu,Jun Gou,Jun Wang

2019 44TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)（2019）

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摘要

An algorithm was used to reconstruct an image from the photodetector measurement value without the lens. And traditional optical lens is replaced by a Fresnel aperture in the lensless system so that it is small in size. The lensless infrared image processing method based on Fresnel aperture proposed in this paper develops the primary and quadratic reconstruction algorithms based on the fringe phase scanning method, and the target image can be reconstructed by the algorithm. The lensless imaging of the infrared focal plane detector is realized, which provides a better algorithm direction for the lensless infrared imaging.

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关键词

traditional optical lens,photodetector measurement value,lensless infrared imaging,infrared focal plane detector,lensless imaging,target image,fringe phase scanning method,quadratic reconstruction algorithms,primary reconstruction algorithms,lensless infrared image processing method,lensless system,Fresnel aperture

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