Skin perfusion photography
The separation of global and direct light components of a scene is highly useful for scene analysis, as each component offers different information about illumination-scene-detector interactions. Relying on ray optics, the technique is important in computational photography, but it is often under ap...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers (IEEE)
2015
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| Online Access: | http://hdl.handle.net/1721.1/92732 https://orcid.org/0000-0002-0234-5294 https://orcid.org/0000-0002-3254-3224 |
| _version_ | 1826195916013436928 |
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| author | Satat, Guy Barsi, Christopher Raskar, Ramesh |
| author2 | Massachusetts Institute of Technology. Media Laboratory |
| author_facet | Massachusetts Institute of Technology. Media Laboratory Satat, Guy Barsi, Christopher Raskar, Ramesh |
| author_sort | Satat, Guy |
| collection | MIT |
| description | The separation of global and direct light components of a scene is highly useful for scene analysis, as each component offers different information about illumination-scene-detector interactions. Relying on ray optics, the technique is important in computational photography, but it is often under appreciated in the biomedical imaging community, where wave interference effects are utilized. Nevertheless, such coherent optical systems lend themselves naturally to global-direct separation methods because of the high spatial frequency nature of speckle interference patterns. Here, we extend global-direct separation to laser speckle contrast imaging (LSCI) system to reconstruct speed maps of blood flow in skin. We compare experimental results with a speckle formation model of moving objects and show that the reconstructed map of skin perfusion is improved over the conventional case. |
| first_indexed | 2024-09-23T10:17:32Z |
| format | Article |
| id | mit-1721.1/92732 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:17:32Z |
| publishDate | 2015 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/927322022-09-26T17:01:37Z Skin perfusion photography Satat, Guy Barsi, Christopher Raskar, Ramesh Massachusetts Institute of Technology. Media Laboratory Program in Media Arts and Sciences (Massachusetts Institute of Technology) Satat, Guy Barsi, Christopher Raskar, Ramesh The separation of global and direct light components of a scene is highly useful for scene analysis, as each component offers different information about illumination-scene-detector interactions. Relying on ray optics, the technique is important in computational photography, but it is often under appreciated in the biomedical imaging community, where wave interference effects are utilized. Nevertheless, such coherent optical systems lend themselves naturally to global-direct separation methods because of the high spatial frequency nature of speckle interference patterns. Here, we extend global-direct separation to laser speckle contrast imaging (LSCI) system to reconstruct speed maps of blood flow in skin. We compare experimental results with a speckle formation model of moving objects and show that the reconstructed map of skin perfusion is improved over the conventional case. 2015-01-07T17:33:09Z 2015-01-07T17:33:09Z 2014-05 Article http://purl.org/eprint/type/ConferencePaper 978-1-4799-5188-8 INSPEC Accession Number: 14383054 http://hdl.handle.net/1721.1/92732 Satat, Guy, Christopher Barsi, and Ramesh Raskar. “Skin Perfusion Photography.” 2014 IEEE International Conference on Computational Photography (ICCP) (May 2014), Santa Clara, Calif. p.1-8. https://orcid.org/0000-0002-0234-5294 https://orcid.org/0000-0002-3254-3224 en_US http://dx.doi.org/10.1109/ICCPHOT.2014.6831804 2014 IEEE International Conference on Computational Photography (ICCP) Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) MIT web domain |
| spellingShingle | Satat, Guy Barsi, Christopher Raskar, Ramesh Skin perfusion photography |
| title | Skin perfusion photography |
| title_full | Skin perfusion photography |
| title_fullStr | Skin perfusion photography |
| title_full_unstemmed | Skin perfusion photography |
| title_short | Skin perfusion photography |
| title_sort | skin perfusion photography |
| url | http://hdl.handle.net/1721.1/92732 https://orcid.org/0000-0002-0234-5294 https://orcid.org/0000-0002-3254-3224 |
| work_keys_str_mv | AT satatguy skinperfusionphotography AT barsichristopher skinperfusionphotography AT raskarramesh skinperfusionphotography |