Optical brush: Imaging through permuted probes
The combination of computational techniques and ultrafast imaging have enabled sensing through unconventional settings such as around corners, and through diffusive media. We exploit time of flight (ToF) measurements to enable a flexible interface for imaging through permuted set of fibers. The fibe...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2016
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| Online Access: | http://hdl.handle.net/1721.1/101886 https://orcid.org/0000-0003-0768-4815 https://orcid.org/0000-0002-3254-3224 |
| _version_ | 1811095600948576256 |
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| author | Lee, Ik Hyun Raskar, Ramesh Heshmat Dehkordi, Barmak |
| author2 | Massachusetts Institute of Technology. Media Laboratory |
| author_facet | Massachusetts Institute of Technology. Media Laboratory Lee, Ik Hyun Raskar, Ramesh Heshmat Dehkordi, Barmak |
| author_sort | Lee, Ik Hyun |
| collection | MIT |
| description | The combination of computational techniques and ultrafast imaging have enabled sensing through unconventional settings such as around corners, and through diffusive media. We exploit time of flight (ToF) measurements to enable a flexible interface for imaging through permuted set of fibers. The fibers are randomly distributed in the scene and are packed on the camera end, thus making a brush-like structure. The scene is illuminated by two off-axis optical pulses. Temporal signatures of fiber tips in the scene are used to localize each fiber. Finally, by combining the position and measured intensity of each fiber, the original input is reconstructed. Unlike conventional fiber bundles with packed set of fibers that are limited by a narrow field of view (FOV), lack of flexibility, and extended coaxial precalibration, the proposed optical brush is flexible and uses off-axis calibration method based on ToF. The enabled brush form can couple to other types of ToF imaging systems. This can impact probe-based applications such as, endoscopy, tomography, and industrial imaging and sensing. |
| first_indexed | 2024-09-23T16:20:35Z |
| format | Article |
| id | mit-1721.1/101886 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:20:35Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1018862022-10-02T07:46:46Z Optical brush: Imaging through permuted probes Lee, Ik Hyun Raskar, Ramesh Heshmat Dehkordi, Barmak Massachusetts Institute of Technology. Media Laboratory Program in Media Arts and Sciences (Massachusetts Institute of Technology) Heshmat Dehkordi, Barmak Lee, Ik Hyun Raskar, Ramesh The combination of computational techniques and ultrafast imaging have enabled sensing through unconventional settings such as around corners, and through diffusive media. We exploit time of flight (ToF) measurements to enable a flexible interface for imaging through permuted set of fibers. The fibers are randomly distributed in the scene and are packed on the camera end, thus making a brush-like structure. The scene is illuminated by two off-axis optical pulses. Temporal signatures of fiber tips in the scene are used to localize each fiber. Finally, by combining the position and measured intensity of each fiber, the original input is reconstructed. Unlike conventional fiber bundles with packed set of fibers that are limited by a narrow field of view (FOV), lack of flexibility, and extended coaxial precalibration, the proposed optical brush is flexible and uses off-axis calibration method based on ToF. The enabled brush form can couple to other types of ToF imaging systems. This can impact probe-based applications such as, endoscopy, tomography, and industrial imaging and sensing. 2016-03-28T16:34:14Z 2016-03-28T16:34:14Z 2016-02 2015-10 Article http://purl.org/eprint/type/JournalArticle 2045-2322 http://hdl.handle.net/1721.1/101886 Heshmat, Barmak, Ik Hyun Lee, and Ramesh Raskar. “Optical Brush: Imaging through Permuted Probes.” Scientific Reports 6 (February 12, 2016): 20217. https://orcid.org/0000-0003-0768-4815 https://orcid.org/0000-0002-3254-3224 en_US http://dx.doi.org/10.1038/srep20217 Scientific Reports Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature Publishing Group |
| spellingShingle | Lee, Ik Hyun Raskar, Ramesh Heshmat Dehkordi, Barmak Optical brush: Imaging through permuted probes |
| title | Optical brush: Imaging through permuted probes |
| title_full | Optical brush: Imaging through permuted probes |
| title_fullStr | Optical brush: Imaging through permuted probes |
| title_full_unstemmed | Optical brush: Imaging through permuted probes |
| title_short | Optical brush: Imaging through permuted probes |
| title_sort | optical brush imaging through permuted probes |
| url | http://hdl.handle.net/1721.1/101886 https://orcid.org/0000-0003-0768-4815 https://orcid.org/0000-0002-3254-3224 |
| work_keys_str_mv | AT leeikhyun opticalbrushimagingthroughpermutedprobes AT raskarramesh opticalbrushimagingthroughpermutedprobes AT heshmatdehkordibarmak opticalbrushimagingthroughpermutedprobes |