Selective edge enhancement in three-dimensional vortex imaging with incoherent light
We demonstrate a new imaging method enabling a selective edge contrast enhancement of three-dimensional amplitude objects with spatially incoherent light. The imaging process is achieved in a spiral modification of Fresnel incoherent correlation holography and uses a vortex impulse response function...
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| Veröffentlicht in: | Optics letters 2012-07, Vol.37 (14), p.2949-2951 |
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| container_end_page | 2951 |
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| container_issue | 14 |
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| container_title | Optics letters |
| container_volume | 37 |
| creator | Bouchal, Petr Bouchal, Zdeněk |
| description | We demonstrate a new imaging method enabling a selective edge contrast enhancement of three-dimensional amplitude objects with spatially incoherent light. The imaging process is achieved in a spiral modification of Fresnel incoherent correlation holography and uses a vortex impulse response function. The correlation recordings of the object are acquired in a one-way interferometer with the wavefront division carried out by a spatial light modulator. Two different methods based on applying a helical reference wave in the hologram recording and a digital spiral phase modulation in image reconstruction are proposed for edge enhancement of amplitude objects. Results of both isotropic and anisotropic spiral imaging are demonstrated in experiments using an LED as an incoherent source of light. |
| doi_str_mv | 10.1364/OL.37.002949 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0146-9592 |
| ispartof | Optics letters, 2012-07, Vol.37 (14), p.2949-2951 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1136522683 |
| source | Optica Publishing Group Journals |
| subjects | Correlation Fluid flow Holography Imaging Impulse response Recording Spirals Three dimensional |
| title | Selective edge enhancement in three-dimensional vortex imaging with incoherent light |
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