On the appearance of translucent edges
Edges in images of translucent objects are very different from edges in images of opaque objects. The physical causes for these differences are hard to characterize analytically and are not well understood. This paper considers one class of translucency edges - those caused by a discontinuity in sur...
| Main Authors: | , , , , |
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| Format: | Article |
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Institute of Electrical and Electronics Engineers (IEEE)
2017
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| Online Access: | http://hdl.handle.net/1721.1/111981 https://orcid.org/0000-0003-2222-6775 |
| _version_ | 1811090244849631232 |
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| author | Gkioulekas, Ioannis Walter, Bruce Bala, Kavita Zickler, Todd Adelson, Edward H |
| author2 | Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Gkioulekas, Ioannis Walter, Bruce Bala, Kavita Zickler, Todd Adelson, Edward H |
| author_sort | Gkioulekas, Ioannis |
| collection | MIT |
| description | Edges in images of translucent objects are very different from edges in images of opaque objects. The physical causes for these differences are hard to characterize analytically and are not well understood. This paper considers one class of translucency edges - those caused by a discontinuity in surface orientation - and describes the physical causes of their appearance. We simulate thousands of translucency edge profiles using many different scattering material parameters, and we explain the resulting variety of edge patterns by qualitatively analyzing light transport. We also discuss the existence of shape and material metamers, or combinations of distinct shape or material parameters that generate the same edge profile. This knowledge is relevant to visual inference tasks that involve translucent objects, such as shape or material estimation. |
| first_indexed | 2024-09-23T14:39:46Z |
| format | Article |
| id | mit-1721.1/111981 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:39:46Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/1119812022-09-29T10:04:09Z On the appearance of translucent edges Gkioulekas, Ioannis Walter, Bruce Bala, Kavita Zickler, Todd Adelson, Edward H Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Adelson, Edward H Edges in images of translucent objects are very different from edges in images of opaque objects. The physical causes for these differences are hard to characterize analytically and are not well understood. This paper considers one class of translucency edges - those caused by a discontinuity in surface orientation - and describes the physical causes of their appearance. We simulate thousands of translucency edge profiles using many different scattering material parameters, and we explain the resulting variety of edge patterns by qualitatively analyzing light transport. We also discuss the existence of shape and material metamers, or combinations of distinct shape or material parameters that generate the same edge profile. This knowledge is relevant to visual inference tasks that involve translucent objects, such as shape or material estimation. National Science Foundation (U.S.) (IIS 1161564) National Science Foundation (U.S.) (IIS 1012454) National Science Foundation (U.S.) (IIS 1212928) National Science Foundation (U.S.) (IIS 1011919) National Institutes of Health (U.S.) (R01- EY019262-02) National Institutes of Health (U.S.) (R21-EY019741-02) 2017-10-27T14:04:59Z 2017-10-27T14:04:59Z 2015-10 2015-06 2017-10-25T16:59:24Z Article http://purl.org/eprint/type/ConferencePaper 978-1-4673-6964-0 1063-6919 http://hdl.handle.net/1721.1/111981 Gkioulekas, Ioannis et al. “On the Appearance of Translucent Edges.” 2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), June 7-12 2015, Boston, Massachusetts, USA, Institute of Electrical and Electronics Engineers (IEEE), October 2015 © 2015 Institute of Electrical and Electronics Engineers (IEEE) https://orcid.org/0000-0003-2222-6775 http://dx.doi.org/10.1109/CVPR.2015.7299192 2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) Other univ. web domain |
| spellingShingle | Gkioulekas, Ioannis Walter, Bruce Bala, Kavita Zickler, Todd Adelson, Edward H On the appearance of translucent edges |
| title | On the appearance of translucent edges |
| title_full | On the appearance of translucent edges |
| title_fullStr | On the appearance of translucent edges |
| title_full_unstemmed | On the appearance of translucent edges |
| title_short | On the appearance of translucent edges |
| title_sort | on the appearance of translucent edges |
| url | http://hdl.handle.net/1721.1/111981 https://orcid.org/0000-0003-2222-6775 |
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