Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging
The recovery of objects obscured by scattering is an important goal in imaging and has been approached by exploiting, for example, coherence properties, ballistic photons or penetrating wavelengths. Common methods use scattered light transmitted through an occluding material, although these fail if...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2013
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| Online Access: | http://hdl.handle.net/1721.1/80394 https://orcid.org/0000-0003-2220-4365 https://orcid.org/0000-0001-9828-0730 https://orcid.org/0000-0002-3254-3224 |
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| author | Velten, Andreas Willwacher, Thomas Gupta, Otkrist Veeraraghavan, Ashok Raskar, Ramesh Bawendi, Moungi G |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Velten, Andreas Willwacher, Thomas Gupta, Otkrist Veeraraghavan, Ashok Raskar, Ramesh Bawendi, Moungi G |
| author_sort | Velten, Andreas |
| collection | MIT |
| description | The recovery of objects obscured by scattering is an important goal in imaging and has been approached by exploiting, for example, coherence properties, ballistic photons or penetrating wavelengths. Common methods use scattered light transmitted through an occluding material, although these fail if the occluder is opaque. Light is scattered not only by transmission through objects, but also by multiple reflection from diffuse surfaces in a scene. This reflected light contains information about the scene that becomes mixed by the diffuse reflections before reaching the image sensor. This mixing is difficult to decode using traditional cameras. Here we report the combination of a time-of-flight technique and computational reconstruction algorithms to untangle image information mixed by diffuse reflection. We demonstrate a three-dimensional range camera able to look around a corner using diffusely reflected light that achieves sub-millimetre depth precision and centimetre lateral precision over 40 cm×40 cm×40 cm of hidden space. |
| first_indexed | 2024-09-23T13:06:31Z |
| format | Article |
| id | mit-1721.1/80394 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:06:31Z |
| publishDate | 2013 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/803942022-05-26T02:37:04Z Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging Velten, Andreas Willwacher, Thomas Gupta, Otkrist Veeraraghavan, Ashok Raskar, Ramesh Bawendi, Moungi G Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Media Laboratory Program in Media Arts and Sciences (Massachusetts Institute of Technology) Velten, Andreas Gupta, Otkrist Raskar, Ramesh Bawendi, Moungi G. The recovery of objects obscured by scattering is an important goal in imaging and has been approached by exploiting, for example, coherence properties, ballistic photons or penetrating wavelengths. Common methods use scattered light transmitted through an occluding material, although these fail if the occluder is opaque. Light is scattered not only by transmission through objects, but also by multiple reflection from diffuse surfaces in a scene. This reflected light contains information about the scene that becomes mixed by the diffuse reflections before reaching the image sensor. This mixing is difficult to decode using traditional cameras. Here we report the combination of a time-of-flight technique and computational reconstruction algorithms to untangle image information mixed by diffuse reflection. We demonstrate a three-dimensional range camera able to look around a corner using diffusely reflected light that achieves sub-millimetre depth precision and centimetre lateral precision over 40 cm×40 cm×40 cm of hidden space. MIT Media Lab Consortium United States. Defense Advanced Research Projects Agency. Young Faculty Award Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract W911NF-07-D-0004) 2013-09-11T16:19:23Z 2013-09-11T16:19:23Z 2012-03 2011-09 Article http://purl.org/eprint/type/JournalArticle 2041-1723 http://hdl.handle.net/1721.1/80394 Velten, Andreas, Thomas Willwacher, Otkrist Gupta, Ashok Veeraraghavan, Moungi G. Bawendi, and Ramesh Raskar. “Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging.” Nature Communications 3 (March 20, 2012): 745. https://orcid.org/0000-0003-2220-4365 https://orcid.org/0000-0001-9828-0730 https://orcid.org/0000-0002-3254-3224 en_US http://dx.doi.org/10.1038/ncomms1747 Nature Communications 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 Nature Publishing Group MIT Web Domain |
| spellingShingle | Velten, Andreas Willwacher, Thomas Gupta, Otkrist Veeraraghavan, Ashok Raskar, Ramesh Bawendi, Moungi G Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging |
| title | Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging |
| title_full | Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging |
| title_fullStr | Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging |
| title_full_unstemmed | Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging |
| title_short | Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging |
| title_sort | recovering three dimensional shape around a corner using ultrafast time of flight imaging |
| url | http://hdl.handle.net/1721.1/80394 https://orcid.org/0000-0003-2220-4365 https://orcid.org/0000-0001-9828-0730 https://orcid.org/0000-0002-3254-3224 |
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