5 January 2017 Dual-axis reflective continuous-wave terahertz confocal scanning polarization imaging and image fusion
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Abstract
A dual-axis reflective continuous-wave terahertz (THz) confocal scanning polarization imaging system was adopted. THz polarization imaging experiments on gaps on film and metallic letters “BeLLE” were carried out. Imaging results indicate that the THz polarization imaging is sensitive to the tilted gap or wide flat gap, suggesting the THz polarization imaging is able to detect edges and stains. An image fusion method based on the digital image processing was proposed to ameliorate the imaging quality of metallic letters “BeLLE.” Objective and subjective evaluation both prove that this method can improve the imaging quality.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yi Zhou, Yi Zhou, Qi Li, Qi Li, } "Dual-axis reflective continuous-wave terahertz confocal scanning polarization imaging and image fusion," Optical Engineering 56(1), 013103 (5 January 2017). https://doi.org/10.1117/1.OE.56.1.013103 . Submission: Received: 13 October 2016; Accepted: 8 December 2016
Received: 13 October 2016; Accepted: 8 December 2016; Published: 5 January 2017
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