info:eu-repo/semantics/article
2-D Continuous Wavelet transform for ESPI phase-maps denoising
Fecha
2013-04Registro en:
0143-8166
Autor
Escalante, Nivia
Villa Hernández, José de Jesús
De la Rosa Vargas, José Ismael
De la Rosa Miranda, Enrique
González Ramírez, Efrén
Gutiérrez, Osvaldo
Olvera Olvera, Carlos Alberto
Araiza Esquivel, María Auxiliadora
Institución
Resumen
In thiswork we introduce a 2-D Continuous Wavelet Transform (2D CWT) method for denoising ESPI phase-maps. Multiresolution analysis with 2-D wavelets can provide high directional sensitivity and high anisotropy which are proper characteristics for this task. Inparticular, the 2-DCWT method using Gabor atoms (Gabor mother wavelets) which can naturally model phase fringes, has a Good performance against noise and can preserve phase fringes. We describe the theoretical basis of the proposed technique and show some experimental results with real and simulated ESPI phase-maps. As can be verified the proposal is robust and effective.