A Direct Method for Locating the Focus of Expansion
We address the problem of recovering the motion of a monocular observer relative to a rigid scene. We do not make any assumptions about the shapes of the surfaces in the scene, nor do we use estimates of the optical flow or point correspondences. Instead, we exploit the spatial gradient and t...
| Main Authors: | , |
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| Language: | en_US |
| Published: |
2004
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| Online Access: | http://hdl.handle.net/1721.1/6457 |
| _version_ | 1811091427928571904 |
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| author | Negahdaripour, Shahriar Horn, Berthold K.P. |
| author_facet | Negahdaripour, Shahriar Horn, Berthold K.P. |
| author_sort | Negahdaripour, Shahriar |
| collection | MIT |
| description | We address the problem of recovering the motion of a monocular observer relative to a rigid scene. We do not make any assumptions about the shapes of the surfaces in the scene, nor do we use estimates of the optical flow or point correspondences. Instead, we exploit the spatial gradient and the time rate of change of brightness over the whole image and explicitly impose the constraint that the surface of an object in the scene must be in front of the camera for it to be imaged. |
| first_indexed | 2024-09-23T15:02:15Z |
| id | mit-1721.1/6457 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:02:15Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | mit-1721.1/64572019-04-11T04:54:45Z A Direct Method for Locating the Focus of Expansion Negahdaripour, Shahriar Horn, Berthold K.P. We address the problem of recovering the motion of a monocular observer relative to a rigid scene. We do not make any assumptions about the shapes of the surfaces in the scene, nor do we use estimates of the optical flow or point correspondences. Instead, we exploit the spatial gradient and the time rate of change of brightness over the whole image and explicitly impose the constraint that the surface of an object in the scene must be in front of the camera for it to be imaged. 2004-10-04T14:57:06Z 2004-10-04T14:57:06Z 1987-01-01 AIM-939 http://hdl.handle.net/1721.1/6457 en_US AIM-939 4199037 bytes 1657558 bytes application/postscript application/pdf application/postscript application/pdf |
| spellingShingle | Negahdaripour, Shahriar Horn, Berthold K.P. A Direct Method for Locating the Focus of Expansion |
| title | A Direct Method for Locating the Focus of Expansion |
| title_full | A Direct Method for Locating the Focus of Expansion |
| title_fullStr | A Direct Method for Locating the Focus of Expansion |
| title_full_unstemmed | A Direct Method for Locating the Focus of Expansion |
| title_short | A Direct Method for Locating the Focus of Expansion |
| title_sort | direct method for locating the focus of expansion |
| url | http://hdl.handle.net/1721.1/6457 |
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