A method and system for enhancing the resolution of terahertz imaging

被引：51
|
作者：
Ahi, Kiarash [1 ]
机构：
[1] Univ Connecticut, Storrs, CT 06269 USA
来源：
MEASUREMENT | 2019年 / 138卷
关键词：
Resolution enhancement; Image restoration; THz imaging; Mathematical model; PSF; DECONVOLUTION; THERMOGRAPHY; SPECTROSCOPY;
D O I：
10.1016/j.measurement.2018.06.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a comprehensive method and process for developing Terahertz (THz) images with enhanced resolution is introduced. This method is implemented as a system comprised of various resolution and quality enhancement techniques. In this system, filters in time and frequency domains are used to filter out noise, low-frequency spectrum, and diffraction distortions. Point Spread Function (PSF) is modeled and the quality of the output image is enhanced further through deconvolution. This process can be fully implemented on THz Time-Domain Spectroscopy (TDS) systems, and partially on continuous-wave THz imaging systems. A user-friendly software program comprising a graphical user interface (GUI) has been developed by the author for automation of implementation of the proposed system. By taking advantage of the proposed process, researchers and industrial sectors can achieve a substantial enhancement on the quality and resolution of their THz images. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：614 / 619
页数：6
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