Phase error correction method based on the Gaussian filtering algorithm and intensity variance
| Autor: | Shan-shan Lü, Qingmei Sui, Qian-qian Gu, Faye Zhang, Lei Zhang, Lei Jia, Mingshun Jiang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
business.industry
Absolute phase Gaussian Phase (waves) Variance (accounting) Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Intensity (physics) Set (abstract data type) symbols.namesake symbols Electrical and Electronic Engineering Photonics business Algorithm Coding (social sciences) Mathematics |
| Zdroj: | Optoelectronics Letters. 17:221-225 |
| ISSN: | 1993-5013 1673-1905 |
| DOI: | 10.1007/s11801-021-0009-6 |
| Popis: | To overcome the invalid phase and phase jump phenomenon generated during the phase unwrapping, a phase error correction method based on the Gaussian filtering algorithm and intensity variance is proposed in this paper. First, a threshold of fringe intensity variance is set to identify and clear the phase in the invalid region. Then, the Gaussian filtering algorithm is employed to correct the phase order at the fringe junction, and then the absolute phase is corrected. Finally, the phase correction experiments of different geometric objects are carried out to verify the feasibility and accuracy of the proposed method. The method proposed in this paper can be extended to the correction of absolute phase error obtained by any coding method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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