A Fringe Phase Extraction Method Based on Neural Network

In optical metrology, the output is usually in the form of a fringe pattern, from which a phase map can be generated and phase information can be converted into the desired parameters. This paper proposes an end-to-end method of fringe phase extraction based on the neural network. This method uses the U-net neural network to directly learn the correspondence between the gray level of a fringe pattern and the wrapped phase map, which is simpler than the exist deep learning methods. The results of simulation and experimental fringe patterns verify the accuracy and the robustness of this method. While it yields the same accuracy, the proposed method features easier operation and a simpler principle than the traditional phase-shifting method and has a faster speed than wavelet transform method.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:21

Enthalten in:

Sensors (Basel, Switzerland) - 21(2021), 5 vom: 28. Feb.

Sprache:

Englisch

Beteiligte Personen:

Hu, Wenxin [VerfasserIn]
Miao, Hong [VerfasserIn]
Yan, Keyu [VerfasserIn]
Fu, Yu [VerfasserIn]

Links:

Volltext

Themen:

Fringe pattern
Journal Article
Phase extraction
U-net neural network
Warped phase map

Anmerkungen:

Date Completed 11.03.2021

Date Revised 17.03.2021

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/s21051664

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM32228242X