Accidental Pinhole and Pinspeck Cameras

We identify and study two types of “accidental” images that can be formed in scenes. The first is an accidental pinhole camera image. The second class of accidental images are “inverse” pinhole camera images, formed by subtracting an image with a small occluder present from a reference image without...

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Main Authors: Torralba, Antonio, Freeman, William T.
Other Authors: Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Format: Article
Language:en_US
Published: Springer-Verlag 2014
Online Access:http://hdl.handle.net/1721.1/86141
https://orcid.org/0000-0002-2231-7995
https://orcid.org/0000-0003-4915-0256
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author Torralba, Antonio
Freeman, William T.
author2 Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
author_facet Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Torralba, Antonio
Freeman, William T.
author_sort Torralba, Antonio
collection MIT
description We identify and study two types of “accidental” images that can be formed in scenes. The first is an accidental pinhole camera image. The second class of accidental images are “inverse” pinhole camera images, formed by subtracting an image with a small occluder present from a reference image without the occluder. Both types of accidental cameras happen in a variety of different situations. For example, an indoor scene illuminated by natural light, a street with a person walking under the shadow of a building, etc. The images produced by accidental cameras are often mistaken for shadows or interreflections. However, accidental images can reveal information about the scene outside the image, the lighting conditions, or the aperture by which light enters the scene.
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spelling mit-1721.1/861412022-10-02T04:35:44Z Accidental Pinhole and Pinspeck Cameras Torralba, Antonio Freeman, William T. Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Torralba, Antonio Freeman, William T. We identify and study two types of “accidental” images that can be formed in scenes. The first is an accidental pinhole camera image. The second class of accidental images are “inverse” pinhole camera images, formed by subtracting an image with a small occluder present from a reference image without the occluder. Both types of accidental cameras happen in a variety of different situations. For example, an indoor scene illuminated by natural light, a street with a person walking under the shadow of a building, etc. The images produced by accidental cameras are often mistaken for shadows or interreflections. However, accidental images can reveal information about the scene outside the image, the lighting conditions, or the aperture by which light enters the scene. National Science Foundation (U.S.) (CAREER Award 0747120) United States. Office of Naval Research. Multidisciplinary University Research Initiative (N000141010933) National Science Foundation (U.S.) (CGV 1111415) National Science Foundation (U.S.) (CGV 0964004) 2014-04-14T13:23:31Z 2014-04-14T13:23:31Z 2014-03 2013-03 Article http://purl.org/eprint/type/JournalArticle 0920-5691 1573-1405 http://hdl.handle.net/1721.1/86141 Torralba, Antonio, and William T. Freeman. “Accidental Pinhole and Pinspeck Cameras.” International Journal of Computer Vision (March 11, 2014). https://orcid.org/0000-0002-2231-7995 https://orcid.org/0000-0003-4915-0256 en_US http://dx.doi.org/10.1007/s11263-014-0697-5 International Journal of Computer Vision Creative Commons Attribution http://creativecommons.org/ application/pdf Springer-Verlag Springer
spellingShingle Torralba, Antonio
Freeman, William T.
Accidental Pinhole and Pinspeck Cameras
title Accidental Pinhole and Pinspeck Cameras
title_full Accidental Pinhole and Pinspeck Cameras
title_fullStr Accidental Pinhole and Pinspeck Cameras
title_full_unstemmed Accidental Pinhole and Pinspeck Cameras
title_short Accidental Pinhole and Pinspeck Cameras
title_sort accidental pinhole and pinspeck cameras
url http://hdl.handle.net/1721.1/86141
https://orcid.org/0000-0002-2231-7995
https://orcid.org/0000-0003-4915-0256
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