Hemispherical confocal imaging using turtleback reflector
We propose a new imaging method called hemispherical confocal imaging to clearly visualize a particular depth in a 3-D scene. The key optical component is a turtleback reflector which is a specially designed polyhedral mirror. By combining the turtleback reflector with a coaxial pair of a camera and...
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| Formaat: | Artikel |
| Taal: | en_US |
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Springer
2011
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| Online toegang: | http://hdl.handle.net/1721.1/66111 https://orcid.org/0000-0002-3254-3224 |
| _version_ | 1826207120166486016 |
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| author | Mukaigawa, Yasuhiro Tagawa, Seiichi Kim, Jaewon Raskar, Ramesh Matsushita, Yasuyuki Yagi, Yasushi |
| author2 | Massachusetts Institute of Technology. Media Laboratory |
| author_facet | Massachusetts Institute of Technology. Media Laboratory Mukaigawa, Yasuhiro Tagawa, Seiichi Kim, Jaewon Raskar, Ramesh Matsushita, Yasuyuki Yagi, Yasushi |
| author_sort | Mukaigawa, Yasuhiro |
| collection | MIT |
| description | We propose a new imaging method called hemispherical confocal imaging to clearly visualize a particular depth in a 3-D scene. The key optical component is a turtleback reflector which is a specially designed polyhedral mirror. By combining the turtleback reflector with a coaxial pair of a camera and a projector, many virtual cameras and projectors are produced on a hemisphere with uniform density to synthesize a hemispherical aperture. In such an optical device, high frequency illumination can be focused at a particular depth in the scene to visualize only the depth with descattering. Then, the observed views are factorized into masking, attenuation, and texture terms to enhance visualization when obstacles are present. Experiments using a prototype system show that only the particular depth is effectively illuminated and hazes by scattering and attenuation can be recovered even when obstacles exist. |
| first_indexed | 2024-09-23T13:44:26Z |
| format | Article |
| id | mit-1721.1/66111 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:44:26Z |
| publishDate | 2011 |
| publisher | Springer |
| record_format | dspace |
| spelling | mit-1721.1/661112022-09-28T15:49:51Z Hemispherical confocal imaging using turtleback reflector Mukaigawa, Yasuhiro Tagawa, Seiichi Kim, Jaewon Raskar, Ramesh Matsushita, Yasuyuki Yagi, Yasushi Massachusetts Institute of Technology. Media Laboratory Program in Media Arts and Sciences (Massachusetts Institute of Technology) Raskar, Ramesh Mukaigawa, Yasuhiro Kim, Jaewon Raskar, Ramesh We propose a new imaging method called hemispherical confocal imaging to clearly visualize a particular depth in a 3-D scene. The key optical component is a turtleback reflector which is a specially designed polyhedral mirror. By combining the turtleback reflector with a coaxial pair of a camera and a projector, many virtual cameras and projectors are produced on a hemisphere with uniform density to synthesize a hemispherical aperture. In such an optical device, high frequency illumination can be focused at a particular depth in the scene to visualize only the depth with descattering. Then, the observed views are factorized into masking, attenuation, and texture terms to enhance visualization when obstacles are present. Experiments using a prototype system show that only the particular depth is effectively illuminated and hazes by scattering and attenuation can be recovered even when obstacles exist. Microsoft Research Japan Society for the Promotion of Science (Grants-in-Aid For Scientific Research 21680017) Japan Society for the Promotion of Science (Grants-in-Aid For Scientific Research 21650038) 2011-09-28T20:50:09Z 2011-09-28T20:50:09Z 2010-11 Article http://purl.org/eprint/type/JournalArticle http://hdl.handle.net/1721.1/66111 Mukaigawa, Yasuhiro et al. “Hemispherical Confocal Imaging Using Turtleback Reflector.” Computer Vision – ACCV 2010. Ed. Ron Kimmel, Reinhard Klette, & Akihiro Sugimoto. (Lecture notes in computer science, Vol. 6492.) Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. 336-349. Copyright © 2011, Springer Berlin / Heidelberg https://orcid.org/0000-0002-3254-3224 en_US http://dx.doi.org/10.1007/978-3-642-19315-6_26 Computer vision (Asian Conference on Computer Vision (ACCV) 2010) (lecture notes in computer science, v. 6492) Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Springer MIT web domain |
| spellingShingle | Mukaigawa, Yasuhiro Tagawa, Seiichi Kim, Jaewon Raskar, Ramesh Matsushita, Yasuyuki Yagi, Yasushi Hemispherical confocal imaging using turtleback reflector |
| title | Hemispherical confocal imaging using turtleback reflector |
| title_full | Hemispherical confocal imaging using turtleback reflector |
| title_fullStr | Hemispherical confocal imaging using turtleback reflector |
| title_full_unstemmed | Hemispherical confocal imaging using turtleback reflector |
| title_short | Hemispherical confocal imaging using turtleback reflector |
| title_sort | hemispherical confocal imaging using turtleback reflector |
| url | http://hdl.handle.net/1721.1/66111 https://orcid.org/0000-0002-3254-3224 |
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