Terahertz Image Restoration with "Zero-Shot" Super-resolution

被引:0
作者
Han, Zhongde [1 ]
Hu, Weidong [1 ]
Li, Yade [1 ]
Xu, Zhihao [1 ]
Zhao, Yunzhang [1 ]
Ni, Jiaqi [1 ]
Ligthart, Leo [2 ]
机构
[1] Beijing Inst Technol, Beijing Key Lab Millimeter Wave & Terahertz Techn, Beijing, Peoples R China
[2] Delft Univ Technol, Fac Elect Engn, NL-2600 GA Delft, Netherlands
来源
2020 CROSS STRAIT RADIO SCIENCE & WIRELESS TECHNOLOGY CONFERENCE, CSRSWTC | 2020年
基金
国家重点研发计划;
关键词
image restoration; Zero-Shot super-resolution; spatial resolution; point-spread-function (PSF);
D O I
10.1109/CSRSWTC50769.2020.9372649
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The spatial resolution of terahertz (THz) image is often degraded by many factors during the imaging process. Therefore, a "Zero-Shot" super-resolution CNN framework, which is trained only by the input image itself, is proposed to cope with those degradation factors. With this unsupervised framework, the restoration level of the CNN can be flexibly adjusted based on the input THz image in order to achieve the best restoration effect. Experimental results on both the simulated data and real tested THz data have proved the effectiveness of our method.
引用
收藏
页数:3
相关论文
共 6 条
[1]   Mathematical Modeling of THz Point Spread Function and Simulation of THz Imaging Systems [J].
Ahi, Kiarash .
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, 2017, 7 (06) :747-754
[2]   Adaptive terahertz image super-resolution with adjustable convolutional neural network [J].
Li, Yade ;
Hu, Weidong ;
Zhang, Xin ;
Xu, Zhihao ;
Ni, Jiaqi ;
Ligthart, Leo P. .
OPTICS EXPRESS, 2020, 28 (15) :22200-22217
[3]   Terahertz image super-resolution based on a deep convolutional neural network [J].
Long, Zhenyu ;
Wang, Tianyi ;
You, Chengwu ;
Yang, Zhengang ;
Wang, Kejia ;
Liu, Jinsong .
APPLIED OPTICS, 2019, 58 (10) :2731-2735
[4]   Point Spread Function Estimation for a Terahertz Imaging System [J].
Popescu, Dan C. ;
Hellicar, Andrew D. .
EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING, 2010,
[5]   "Zero-Shot" Super-Resolution using Deep Internal Learning [J].
Shocher, Assaf ;
Cohen, Nadav ;
Irani, Michal .
2018 IEEE/CVF CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR), 2018, :3118-3126
[6]   High-resolution reconstruction for terahertz imaging [J].
Xu, Li-Min ;
Fan, Wen-Hui ;
Liu, Jia .
APPLIED OPTICS, 2014, 53 (33) :7891-7897