https://3demmethods.i2pc.es/index.php?action=history&feed=atom&title=2015Venkatakrishnan_MBIR 2026-05-24T21:10:47Z Revision history for this page on the wiki MediaWiki 1.44.2 https://3demmethods.i2pc.es/index.php?title=2015Venkatakrishnan_MBIR&diff=3494&oldid=prev 2019-05-13T12:13:10Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:13, 13 May 2019</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Citation ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Citation ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del>Venkatakrishnan, S. V.; Drummy, L. F.; Jackson, M.; De Graef, M.; Simmons, J.; Bouman, C. A.  Model-Based Iterative Reconstruction for Bright-Field Electron Tomography, IEEE Transactions on Computational Imaging, 2015, 1, 1-15</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Venkatakrishnan, S. V.; Drummy, L. F.; Jackson, M.; De Graef, M.; Simmons, J.; Bouman, C. A.  Model-Based Iterative Reconstruction for Bright-Field Electron Tomography, IEEE Transactions on Computational Imaging, 2015, 1, 1-15</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Abstract ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Abstract ==</div></td></tr> </table>

WikiSysop https://3demmethods.i2pc.es/index.php?title=2015Venkatakrishnan_MBIR&diff=3493&oldid=prev 2019-05-13T12:12:59Z

<p>Created page with &quot;== Citation == Venkatakrishnan, S. V.; Drummy, L. F.; Jackson, M.; De Graef, M.; Simmons, J.; Bouman, C. A. Model-Based Iterative Reconstruction for Bright-Field Electron T...&quot;</p> <p><b>New page</b></p><div>== Citation ==<br /> <br /> Venkatakrishnan, S. V.; Drummy, L. F.; Jackson, M.; De Graef, M.; Simmons, J.; Bouman, C. A. Model-Based Iterative Reconstruction for Bright-Field Electron Tomography, IEEE Transactions on Computational Imaging, 2015, 1, 1-15<br /> <br /> == Abstract ==<br /> <br /> Bright-Field (BF) electron tomography (ET) has been<br /> widely used in the life sciences for 3-D imaging of biological specimens. However, while BF-ET is popular in the life sciences, 3-D<br /> BF-ET imaging has been avoided in the physical sciences due<br /> to measurement anomalies from crystalline samples caused by<br /> dynamical diffraction effects such as Bragg scatter. In practice,<br /> these measurement anomalies cause undesirable artifacts in 3-D<br /> reconstructions computed using filtered back-projection (FBP).<br /> Alternatively, model-based iterative reconstruction (MBIR) is a<br /> powerful framework for tomographic reconstruction that combines a forward model for the measurement system and a prior<br /> model for the object to obtain reconstructions by minimizing a single cost function. In this paper, we present an MBIR algorithm for<br /> BF-ET reconstruction from crystalline materials that can account<br /> for the presence of anomalous measurements. We propose a new<br /> forward model for the acquisition system which accounts for the<br /> presence of anomalous measurements and combine it with a prior<br /> model for the object to obtain the MBIR cost function. We then<br /> propose a fast algorithm based on majorization–minimization to<br /> find a minimum of the corresponding cost function. Results on<br /> simulated as well as real data show that our method can dramatically improve reconstruction quality as compared to FBP and<br /> conventional MBIR without anomaly modeling.<br /> <br /> == Keywords ==<br /> <br /> == Links ==<br /> <br /> https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6960043<br /> <br /> == Related software ==<br /> <br /> == Related methods ==<br /> <br /> == Comments ==</div>

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