Photometric stereo endoscopy
While color video endoscopy has enabled wide-field examination of the gastrointestinal tract, it often misses or incorrectly classifies lesions. Many of these missed lesions exhibit characteristic three-dimensional surface topographies. An endoscopic system that adds topographical measurements to co...
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| Format: | Article |
| Language: | en_US |
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SPIE
2013
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| Online Access: | http://hdl.handle.net/1721.1/80301 https://orcid.org/0000-0002-4260-2785 https://orcid.org/0000-0002-9261-6667 |
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| author | Parot, Vicente Lim, Daryl Gonzalez Serrano, German Durr, Nicholas Vakoc, Benjamin Nishioka, Norman S. Traverso, Carlo Giovanni |
| author2 | Harvard University--MIT Division of Health Sciences and Technology |
| author_facet | Harvard University--MIT Division of Health Sciences and Technology Parot, Vicente Lim, Daryl Gonzalez Serrano, German Durr, Nicholas Vakoc, Benjamin Nishioka, Norman S. Traverso, Carlo Giovanni |
| author_sort | Parot, Vicente |
| collection | MIT |
| description | While color video endoscopy has enabled wide-field examination of the gastrointestinal tract, it often misses or incorrectly classifies lesions. Many of these missed lesions exhibit characteristic three-dimensional surface topographies. An endoscopic system that adds topographical measurements to conventional color imagery could therefore increase lesion detection and improve classification accuracy. We introduce photometric stereo endoscopy (PSE), a technique which allows high spatial frequency components of surface topography to be acquired simultaneously with conventional two-dimensional color imagery. We implement this technique in an endoscopic form factor and demonstrate that it can acquire the topography of small features with complex geometries and heterogeneous optical properties. PSE imaging of ex vivo human gastrointestinal tissue shows that surface topography measurements enable differentiation of abnormal shapes from surrounding normal tissue. Together, these results confirm that the topographical measurements can be obtained with relatively simple hardware in an endoscopic form factor, and suggest the potential of PSE to improve lesion detection and classification in gastrointestinal imaging. |
| first_indexed | 2024-09-23T17:15:31Z |
| format | Article |
| id | mit-1721.1/80301 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:15:31Z |
| publishDate | 2013 |
| publisher | SPIE |
| record_format | dspace |
| spelling | mit-1721.1/803012022-10-03T11:24:17Z Photometric stereo endoscopy Parot, Vicente Lim, Daryl Gonzalez Serrano, German Durr, Nicholas Vakoc, Benjamin Nishioka, Norman S. Traverso, Carlo Giovanni Harvard University--MIT Division of Health Sciences and Technology Massachusetts Institute of Technology. Research Laboratory of Electronics Koch Institute for Integrative Cancer Research at MIT Parot, Vicente Lim, Daryl Gonzalez Serrano, German Durr, Nicholas Vakoc, Benjamin Traverso, Giovanni While color video endoscopy has enabled wide-field examination of the gastrointestinal tract, it often misses or incorrectly classifies lesions. Many of these missed lesions exhibit characteristic three-dimensional surface topographies. An endoscopic system that adds topographical measurements to conventional color imagery could therefore increase lesion detection and improve classification accuracy. We introduce photometric stereo endoscopy (PSE), a technique which allows high spatial frequency components of surface topography to be acquired simultaneously with conventional two-dimensional color imagery. We implement this technique in an endoscopic form factor and demonstrate that it can acquire the topography of small features with complex geometries and heterogeneous optical properties. PSE imaging of ex vivo human gastrointestinal tissue shows that surface topography measurements enable differentiation of abnormal shapes from surrounding normal tissue. Together, these results confirm that the topographical measurements can be obtained with relatively simple hardware in an endoscopic form factor, and suggest the potential of PSE to improve lesion detection and classification in gastrointestinal imaging. Madrid-MIT M+Visión Consortium 2013-08-27T16:05:06Z 2013-08-27T16:05:06Z 2013-07 2013-06 Article http://purl.org/eprint/type/JournalArticle 1083-3668 1560-2281 http://hdl.handle.net/1721.1/80301 Parot, Vicente. “Photometric stereo endoscopy.” Journal of Biomedical Optics 18, no. 7 (July 1, 2013): 076017. https://orcid.org/0000-0002-4260-2785 https://orcid.org/0000-0002-9261-6667 en_US http://dx.doi.org/10.1117/1.jbo.18.7.076017 Journal of Biomedical Optics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf SPIE SPIE |
| spellingShingle | Parot, Vicente Lim, Daryl Gonzalez Serrano, German Durr, Nicholas Vakoc, Benjamin Nishioka, Norman S. Traverso, Carlo Giovanni Photometric stereo endoscopy |
| title | Photometric stereo endoscopy |
| title_full | Photometric stereo endoscopy |
| title_fullStr | Photometric stereo endoscopy |
| title_full_unstemmed | Photometric stereo endoscopy |
| title_short | Photometric stereo endoscopy |
| title_sort | photometric stereo endoscopy |
| url | http://hdl.handle.net/1721.1/80301 https://orcid.org/0000-0002-4260-2785 https://orcid.org/0000-0002-9261-6667 |
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