Adaptive Fourier single-pixel imaging sampling based on frequency coefficients prediction

Zhenyu Liang; Dabin Yu; Zhengdong ChengXiang Zhai

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Adaptive Fourier single-pixel imaging sampling based on frequency coefficients prediction

机译：Adaptive Fourier single-pixel imaging sampling based on frequency coefficients prediction

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摘要

Fourier single-pixel imaging (FSI) has been proven to achieve excellent image quality when sampling all information in the Fourier domain. However, when the size of an imaging target is large, fully sampling Fourier coefficients would result in a large waste of sampling resources. An adaptive sampling method is proposed that is simple to implement and effectively improves the reconstructed image quality from undersampled Fourier coefficients. Through a rough estimation of spectrum energy distribution, the adaptive sampling trajectory is generated by the designed adaptive probability density function. Both the results of computational simulations and experiments demonstrate that the proposed method has overcome the limitations of the insufficient sampling rates, and the reconstruction images have obtained dramatic improvements. These improvements greatly promote the development of the FSI during undersampled conditions.

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来源
《Optical Engineering》 |2020年第7期|073105-1-073105-11|共11页
作者
Zhenyu Liang; Dabin Yu; Zhengdong ChengXiang Zhai;
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作者单位

National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, HeFei, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
关键词
Fourier single-pixel imaging; adaptive sampling; frequency coefficients undersampling; compressed sensing;

Adaptive Fourier single-pixel imaging sampling based on frequency coefficients prediction

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