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EnglishA general and simple method for 3-D image restoration in optical sectioning microscopy is presented. A set of images taken with an optical system with a known 3-D point spread function (psf) are considered. The restoration task is described, pointing out theoretical constraints on recovering the actual spatial distribution of the original object. A spatial-frequency analysis is performed, using no a priori information about the specimens udner investigation. The feasibility and limitations of 3-D reconstructions are analyzed. Moreover, a procedure is proposed that allows one to recover object projections within an angle range strictly dependent on the psf of the system used. 3-D objects have been simulated in order to produce a set of images similar to those provided by an optical system. Restoration has then been accomplished, and results demonstrate that side-views of an object can be obtained to a satisfactory degree of accuracy. Finally, a discussion concerning the presence of transparent and opaque objects in the field of view is also presented.
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| Titolo: | 3-D RECONSTRUCTION IN OPTICAL MICROSCOPY BY A FREQUENCY-DOMAIN APPROACH |
| Autori: | |
| Data di pubblicazione: | 1993 |
| Rivista: | |
| Abstract: | A general and simple method for 3-D image restoration in optical sectioning microscopy is presented. A set of images taken with an optical system with a known 3-D point spread function (psf) are considered. The restoration task is described, pointing out theoretical constraints on recovering the actual spatial distribution of the original object. A spatial-frequency analysis is performed, using no a priori information about the specimens udner investigation. The feasibility and limitations of 3-D reconstructions are analyzed. Moreover, a procedure is proposed that allows one to recover object projections within an angle range strictly dependent on the psf of the system used. 3-D objects have been simulated in order to produce a set of images similar to those provided by an optical system. Restoration has then been accomplished, and results demonstrate that side-views of an object can be obtained to a satisfactory degree of accuracy. Finally, a discussion concerning the presence of transparent and opaque objects in the field of view is also presented. |
| Handle: | http://hdl.handle.net/11567/194069 |
| Appare nelle tipologie: | 01.01 - Articolo su rivista |
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