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Agenda. Introduction Bag-of-words model Visual words with spatial location Part-based models Discriminative methods Segmentation and recognition Recognition-based image retrieval Datasets & Conclusions. Lazebnik, Schmid & Ponce, 2006. Slide credit: S. Lazebnik. Slide credit: S. Lazebnik.
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Agenda • Introduction • Bag-of-words model • Visual words with spatial location • Part-based models • Discriminative methods • Segmentation and recognition • Recognition-based image retrieval • Datasets & Conclusions
Lazebnik, Schmid & Ponce, 2006 Slide credit: S. Lazebnik
What about spatial info? • Feature level • Spatial influence through correlogram features: Savarese, Winn and Criminisi, CVPR 2006
What about spatial info? • Feature level • Generative models • Sudderth, Torralba, Freeman & Willsky, 2005, 2006 • Niebles & Fei-Fei, CVPR 2007
3D scene models Sudderth, Torralba, Freeman, Wilsky, CVPR 06 Object locations Object parts Visual words belongingto each object part Projection of scene ontoimage plane