A Pyramid of Concentric Circular Regions to Improve Rotation Invariance in Bag-of-Words Approach for Object Categorization.
Arnaldo Câmara LaraRoberto Hirata Jr.Published in: VISAPP (1) (2013)
Keyphrases
- bag of words
- visual words
- object categorization
- image representation
- bag of words models
- image classification
- object categories
- action recognition
- bag of features
- text classification
- image features
- multiscale
- co occurrence
- keypoints
- object recognition
- n gram
- spatial information
- multiresolution
- image retrieval
- scale space
- viewpoint
- input image