Developments in three-dimensional stereo brightfield microscopy
We present recent developments of a widefield computer/microscope system and image reconstruction algorithm for producing three‐dimensional (3D) increased depth of field images in the form of brightfield stereo pairs of thick specimens. The theoretical principle of this image reconstruction techniqu...
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| Veröffentlicht in: | Microscopy research and technique 1993-04, Vol.24 (5), p.437-451 |
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| container_title | Microscopy research and technique |
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| creator | Willis, Byron Turner, James N. Collins, Doris N. Roysam, Badrinath Holmes, Timothy J. |
| description | We present recent developments of a widefield computer/microscope system and image reconstruction algorithm for producing three‐dimensional (3D) increased depth of field images in the form of brightfield stereo pairs of thick specimens. The theoretical principle of this image reconstruction technique is based on Weiner‐type inverse filtering. A number of extensions and refinements to our previous work have included further testing of the system with a broader class of specimens and the implementation of several pragmatic refinements important for future 3D microscopy systems. These refinements include histogram modification routines for improving visualization, a preprocessing routine to eliminate edge artifacts due to circular convolution and other effects, stereo viewing angle optimization, a rule of thumb estimate for the axial sampling rate, and incorporation of a variation of the Fast Fourier Transform and filtering operations that significantly reduce computational time. Images of spyrogyra, neonatal rat hippocampal neurons, and cervical/vaginal cell smears are presented to show the utility of these methods for 3D visualization. The primary advantages of these methods are that they operate with an ordinary transmitted light microscope and are inexpensively implemented on a personal computer with reasonable computation time. © 1993 Wiley‐Liss, Inc. |
| doi_str_mv | 10.1002/jemt.1070240509 |
| format | Article |
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Res. Tech</addtitle><description>We present recent developments of a widefield computer/microscope system and image reconstruction algorithm for producing three‐dimensional (3D) increased depth of field images in the form of brightfield stereo pairs of thick specimens. The theoretical principle of this image reconstruction technique is based on Weiner‐type inverse filtering. A number of extensions and refinements to our previous work have included further testing of the system with a broader class of specimens and the implementation of several pragmatic refinements important for future 3D microscopy systems. These refinements include histogram modification routines for improving visualization, a preprocessing routine to eliminate edge artifacts due to circular convolution and other effects, stereo viewing angle optimization, a rule of thumb estimate for the axial sampling rate, and incorporation of a variation of the Fast Fourier Transform and filtering operations that significantly reduce computational time. Images of spyrogyra, neonatal rat hippocampal neurons, and cervical/vaginal cell smears are presented to show the utility of these methods for 3D visualization. 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Res. Tech</addtitle><date>1993-04-01</date><risdate>1993</risdate><volume>24</volume><issue>5</issue><spage>437</spage><epage>451</epage><pages>437-451</pages><issn>1059-910X</issn><eissn>1097-0029</eissn><coden>MRTEEO</coden><abstract>We present recent developments of a widefield computer/microscope system and image reconstruction algorithm for producing three‐dimensional (3D) increased depth of field images in the form of brightfield stereo pairs of thick specimens. The theoretical principle of this image reconstruction technique is based on Weiner‐type inverse filtering. A number of extensions and refinements to our previous work have included further testing of the system with a broader class of specimens and the implementation of several pragmatic refinements important for future 3D microscopy systems. 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| ispartof | Microscopy research and technique, 1993-04, Vol.24 (5), p.437-451 |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Algorithms Animals Cervix Uteri - cytology Computer/microscope system Conventional optical microscopes Depth of field Eukaryota - cytology Exact sciences and technology Fast Fourier Transform Female Fourier Analysis Hippocampus - cytology Humans Image Processing, Computer-Assisted Image reconstruction Instruments, apparatus, components and techniques common to several branches of physics and astronomy Inverse filtering Microscopy - instrumentation Microscopy - methods Missing cone Neurons - cytology Optical instruments, equipment and techniques Optical sectioning Optical transfer function Physics Stereo pairs |
| title | Developments in three-dimensional stereo brightfield microscopy |
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