Efficient retrieval of deformable shape classes using local self-similarities
We present an efficient object retrieval system based on the identification of abstract deformable 'shape' classes using the self-similarity descriptor of Shechtman and Irani. Given a user-specified query object, we retrieve other images which share a common `shape' even if their appe...
| Main Authors: | , , |
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| Format: | Conference item |
| Language: | English |
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IEEE
2010
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| _version_ | 1824458871140253696 |
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| author | Chatfield, K Philbin, J Zisserman, A |
| author_facet | Chatfield, K Philbin, J Zisserman, A |
| author_sort | Chatfield, K |
| collection | OXFORD |
| description | We present an efficient object retrieval system based on the identification of abstract deformable 'shape' classes using the self-similarity descriptor of Shechtman and Irani. Given a user-specified query object, we retrieve other images which share a common `shape' even if their appearance differs greatly in terms of colour, texture, edges and other common photometric properties. In order to use the self-similarity descriptor for efficient retrieval we make three contributions: (i) we sparsify the descriptor points by locating discriminative regions within each image, thus reducing the computational expense of shape matching; (ii) we extend to enable matching despite changes in scale; and (iii) we show that vector quantizing the descriptor does not inhibit performance, thus providing the basis of a large-scale shape-based retrieval system using a bag-of-visual-words approach. Performance is demonstrated on the challenging ETHZ deformable shape dataset and a full episode from the television series Lost, and is shown to be superior to appearance-based approaches for matching non-rigid shape classes. |
| first_indexed | 2025-02-19T04:32:46Z |
| format | Conference item |
| id | oxford-uuid:2d59918a-4579-4aec-83fa-bb672f1768c8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2025-02-19T04:32:46Z |
| publishDate | 2010 |
| publisher | IEEE |
| record_format | dspace |
| spelling | oxford-uuid:2d59918a-4579-4aec-83fa-bb672f1768c82025-01-15T13:26:35ZEfficient retrieval of deformable shape classes using local self-similaritiesConference itemhttp://purl.org/coar/resource_type/c_5794uuid:2d59918a-4579-4aec-83fa-bb672f1768c8EnglishSymplectic ElementsIEEE2010Chatfield, KPhilbin, JZisserman, AWe present an efficient object retrieval system based on the identification of abstract deformable 'shape' classes using the self-similarity descriptor of Shechtman and Irani. Given a user-specified query object, we retrieve other images which share a common `shape' even if their appearance differs greatly in terms of colour, texture, edges and other common photometric properties. In order to use the self-similarity descriptor for efficient retrieval we make three contributions: (i) we sparsify the descriptor points by locating discriminative regions within each image, thus reducing the computational expense of shape matching; (ii) we extend to enable matching despite changes in scale; and (iii) we show that vector quantizing the descriptor does not inhibit performance, thus providing the basis of a large-scale shape-based retrieval system using a bag-of-visual-words approach. Performance is demonstrated on the challenging ETHZ deformable shape dataset and a full episode from the television series Lost, and is shown to be superior to appearance-based approaches for matching non-rigid shape classes. |
| spellingShingle | Chatfield, K Philbin, J Zisserman, A Efficient retrieval of deformable shape classes using local self-similarities |
| title | Efficient retrieval of deformable shape classes using local self-similarities |
| title_full | Efficient retrieval of deformable shape classes using local self-similarities |
| title_fullStr | Efficient retrieval of deformable shape classes using local self-similarities |
| title_full_unstemmed | Efficient retrieval of deformable shape classes using local self-similarities |
| title_short | Efficient retrieval of deformable shape classes using local self-similarities |
| title_sort | efficient retrieval of deformable shape classes using local self similarities |
| work_keys_str_mv | AT chatfieldk efficientretrievalofdeformableshapeclassesusinglocalselfsimilarities AT philbinj efficientretrievalofdeformableshapeclassesusinglocalselfsimilarities AT zissermana efficientretrievalofdeformableshapeclassesusinglocalselfsimilarities |