| Full text | |
| Author(s): |
Avila, S.
;
Thome, N.
;
Cord, M.
;
Valle, E.
;
Araujo, A. de A.
;
IEEE
Total Authors: 6
|
| Document type: | Journal article |
| Source: | 2011 18TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP); v. N/A, p. 4-pg., 2011-01-01. |
| Abstract | |
In image classification, the most powerful statistical learning approaches are based on the Bag-of-Words paradigm. In this article, we propose an extension of this formalism. Considering the Bag-of-Features, dictionary coding and pooling steps, we propose to focus on the pooling step. Instead of using the classical sum or max pooling strategies, we introduced a density function-based pooling strategy. This flexible formalism allows us to better represent the links between dictionary codewords and local descriptors in the resulting image signature. We evaluate our approach in two very challenging tasks of video and image classification, involving very high level semantic categories with large and nuanced visual diversity. (AU) | |
| FAPESP's process: | 09/05951-8 - High-dimensional multimedia indexing: application to image and video retrieval |
| Grantee: | Eduardo Alves Do Valle Junior |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |