Single pixel imaging based on semi-continuous wavelet transform

• 作者: Chao Gao Xiaoqian Wang Shuang Wang Lidan Gou Yuling Feng Guangyong Jin Zhihai Yao
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS
• 页码范围: 277-286
• 页数: 10页
• 语种: 英文
• DOI: 10.1088/1674-1056/abe373

摘要

Single pixel imaging is a novel imaging technique,and it becomes a focus of research in recent years due to its advan-tages such as high lateral resolution and high robustness to noise.Imaging speed is one of the critical shortcomings,which limits the further development and applications of this technique.In this paper,we focus on the issues of imaging efficiency of a single pixel imaging system.We propose semi-continuous wavelet transform (SCWT) protocol and introduce the pro-tocol into the single pixel imaging system.The proposed protocol is something between continuous wavelet transform and discrete wavelet transform,which allows the usage of those smooth (usually non-orthogonal,and they have advantages in representing smooth signals compressively,which can improve the imaging speed of single pixel imaging) wavelets and with limited numbers of measurements.The proposed imaging scheme is studied,and verified by simulations and exper-iments.Furthermore,a comparison between our proposed scheme and existing imaging schemes are given.According to the results,the proposed SCWT scheme is proved to be effective in reconstructing a image compressively.