Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
CVPRW '04 Proceedings of the 2004 Conference on Computer Vision and Pattern Recognition Workshop (CVPRW'04) Volume 12 - Volume 12
Creating Efficient Codebooks for Visual Recognition
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1 - Volume 01
Object Categorization by Learned Universal Visual Dictionary
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
A Comparison of Affine Region Detectors
International Journal of Computer Vision
Beyond Bags of Features: Spatial Pyramid Matching for Recognizing Natural Scene Categories
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2
Learning semantic object parts for object categorization
Image and Vision Computing
Kernel Codebooks for Scene Categorization
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part III
Constructing Category Hierarchies for Visual Recognition
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part IV
SURF: speeded up robust features
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part I
Sampling strategies for bag-of-features image classification
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part IV
Unsupervised object discovery via self-organisation
Pattern Recognition Letters
A tool for catching back your preferred videos from physical collages
Proceedings of the 21st ACM international conference on Multimedia
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Bag of features is a well established technique for the visual categorisation of objects, categories of objects and textures. One of the most important part of this technique is codebook generation since its within-class and between-class discrimination power is the main factor in the categorisation accuracy. A codebook is generated from regions of interest extracted automatically from a set of labeled (supervised/semi-supervised) or unlabeled (unsupervised) images. A standard tool for the codebook generation is the c-means clustering algorithm, and the state-of-the-art results have been reported using generation schemes based on the c-means. In this work, we challenge this mainstream approach by demonstrating how the competitive learning principle in the self-organising map (SOM) is able to provide similar and often superior results to the c-means. Therefore, we claim that exploiting the self-organisation principle is an alternative research direction to the mainstream research in visual object categorisation and its importance for the ultimate challenge, unsupervised visual object categorisation, needs to be investigated.