南京邮电大学学报（自然科学版）2025，Vol.45Issue(2)：86-92,7.DOI:10.14132/j.cnki.1673-5439.2025.02.010
傅里叶域单像素成像中的线性校正
Linearity correction in Fourier-domain single-pixel imaging
摘要
Abstract
Single-pixel imaging is a technique that reconstructs original images by precisely capturing temporal light information with a single-pixel detector.Due to its unique anti-interference characteristics,it is widely used in medical imaging,remote sensing,optical communication,and other fields.In single pixel imaging,the modulation strategy of the light field and the image reconstruction algorithm are key factors affecting its quality.This paper focuses on the orthogonality of the intensity signals of light in single-pixel imaging at different temporal frequencies,Fourier transform based on orthogonal speckle pat-terns can be used for single pixel imaging processing.In Fourier single pixel imaging,the nonlinearity of the light source will introduce the second and the third harmonics during the Fourier transform,output-ting noise in the image and affecting image quality.In regard of this,we conduct polynomial fitting in Matlab to perform nonlinear correction on the light source.This greatly eliminate the noise caused by the Fourier transform and significantly improve the image quality of Fourier single pixel imaging compared to previous correction methods.This correction method can effectively improve the performance of the imag-ing system,and provide a feasible solution for achieving clearer and more accurate image reconstruction.关键词
单像素成像/非线性/校准Key words
single-pixel imaging/nonlinear/calibration分类
计算机与自动化引用本文复制引用
刘宁,祝福,陶钰秀,吴杨康,章文欣..傅里叶域单像素成像中的线性校正[J].南京邮电大学学报（自然科学版）,2025,45(2):86-92,7.基金项目
江苏省产业前瞻与关键核心技术项目(SJ222001)资助项目 （SJ222001）
