Representation and Recognition of the Spatial Organization of Three-Dimensional
A method is given for representing 3-D shapes. It is based on a hierarchy of stick figures (called 3-D models), where each stick corresponds to an axis in the shape's generalized cone representation. Although the representation of a complete shape may contain many stick figures at differe...
| Main Authors: | , |
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| Language: | en_US |
| Published: |
2004
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| Online Access: | http://hdl.handle.net/1721.1/6254 |
| _version_ | 1826196013473333248 |
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| author | Marr, D. Nishihara, H.K. |
| author_facet | Marr, D. Nishihara, H.K. |
| author_sort | Marr, D. |
| collection | MIT |
| description | A method is given for representing 3-D shapes. It is based on a hierarchy of stick figures (called 3-D models), where each stick corresponds to an axis in the shape's generalized cone representation. Although the representation of a complete shape may contain many stick figures at different levels of detail, only one stick figure is examined at a time while the representation is being used ot interpret an image. By thus balancing scope of description against detail, the complexity of the computations needed to support the representation is minimized. The method requires (a) a database of stored stick figures; (b) a simple device called the image-space processor for moving between object-centered and viewer-centered coordinate frames; and (c) a process for "relaxing" a stored model onto the image during recognition. The relation of the theory to "mental rotation" phenomena is discussed, and some critical experimental predictions are made. |
| first_indexed | 2024-09-23T10:19:27Z |
| id | mit-1721.1/6254 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:19:27Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | mit-1721.1/62542019-04-11T01:10:26Z Representation and Recognition of the Spatial Organization of Three-Dimensional Marr, D. Nishihara, H.K. A method is given for representing 3-D shapes. It is based on a hierarchy of stick figures (called 3-D models), where each stick corresponds to an axis in the shape's generalized cone representation. Although the representation of a complete shape may contain many stick figures at different levels of detail, only one stick figure is examined at a time while the representation is being used ot interpret an image. By thus balancing scope of description against detail, the complexity of the computations needed to support the representation is minimized. The method requires (a) a database of stored stick figures; (b) a simple device called the image-space processor for moving between object-centered and viewer-centered coordinate frames; and (c) a process for "relaxing" a stored model onto the image during recognition. The relation of the theory to "mental rotation" phenomena is discussed, and some critical experimental predictions are made. 2004-10-04T14:47:25Z 2004-10-04T14:47:25Z 1976-08-01 AIM-377 http://hdl.handle.net/1721.1/6254 en_US AIM-377 4563597 bytes 3216051 bytes application/postscript application/pdf application/postscript application/pdf |
| spellingShingle | Marr, D. Nishihara, H.K. Representation and Recognition of the Spatial Organization of Three-Dimensional |
| title | Representation and Recognition of the Spatial Organization of Three-Dimensional |
| title_full | Representation and Recognition of the Spatial Organization of Three-Dimensional |
| title_fullStr | Representation and Recognition of the Spatial Organization of Three-Dimensional |
| title_full_unstemmed | Representation and Recognition of the Spatial Organization of Three-Dimensional |
| title_short | Representation and Recognition of the Spatial Organization of Three-Dimensional |
| title_sort | representation and recognition of the spatial organization of three dimensional |
| url | http://hdl.handle.net/1721.1/6254 |
| work_keys_str_mv | AT marrd representationandrecognitionofthespatialorganizationofthreedimensional AT nishiharahk representationandrecognitionofthespatialorganizationofthreedimensional |