Green's formulation for robust phase unwrapping in digital holography |
| |
| Authors: | L. Aiello D. Riccio P. Ferraro S. Grilli L. Sansone G. Coppola S. De Nicola A. Finizio |
| |
| Affiliation: | aUniversità degli Studi di Napoli Federico II, Ingegneria Elettronica e delle Telecomunicazioni, Via Claudio 21(NA), Italy;bIstituto Nazionale di Ottica Applicata, Sez. di Napoli, Via Campi Flegrei 34, 80078-Pozzuoli (NA), Italy;cIstituto di Microelettronica e Microsistemi del CNR , Via Pietro Castellino 80132, Napoli, Italy;dIstituto di Cibernetica del CNR “E.Caianiello”, Via Campi Flegrei 34, 80078-Pozzuoli (NA), Italy |
| |
| Abstract: | We present, for the first time to the best of our knowledge, a phase unwrapping method based on an algorithm which makes use of Green's first identity. This method aims at recovering the correct phase information encoded in a fringe pattern after digital holography (DH) numerical processing. DH provides a quantitative measurement of the three-dimensional surface profile of objects. The information about the profile can be obtained in principle from the phase-map. However, the measured phase-map provides the actual phase values wrapped mod.2π so that an unwrapping process is required in order to reconstruct the object profile. |
| |
| Keywords: | Unwrapping Digital holography Green's first identity |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
