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Enhanced Terahertz Phase Retrieval Imaging by Unequal Spaced Measurement.
- Source :
-
Sensors (14248220) . May2022, Vol. 22 Issue 10, p3816-3816. 10p. - Publication Year :
- 2022
-
Abstract
- Terahertz lensless phase retrieval imaging is a promising technique for non-destructive inspection applications. In the conventional multiple-plane phase retrieval method, the convergence speed due to wave propagations and measures with equal interval distance is slow and leads to stagnation. To address this drawback, we propose a nonlinear unequal spaced measurement scheme in which the interval space between adjacent measurement planes is gradually increasing, it can significantly increase the diversity of the intensity with a smaller number of required images. Both the simulation and experimental results demonstrate that our method enables quantitative phase and amplitude imaging with a faster speed and better image quality, while also being computationally efficient and robust to noise. [ABSTRACT FROM AUTHOR]
- Subjects :
- *IMAGE retrieval
*SUBMILLIMETER waves
*THEORY of wave motion
*MEASUREMENT
Subjects
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 22
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Sensors (14248220)
- Publication Type :
- Academic Journal
- Accession number :
- 157239745
- Full Text :
- https://doi.org/10.3390/s22103816