Title
Visual object categorization with new keypoint-based adaBoost features
Abstract
We present promising results for visual object categorization, obtained with adaBoost using new original "keypoints-based features". These weak-classifiers produce a Boolean response based on presence or absence in the tested image of a "keypoint" (a kind of SURF interest point) with a descriptor sufficiently similar (i.e. within a given distance) to a reference descriptor characterizing the feature. A first experiment was conducted on a public image dataset containing lateral-viewed cars, yielding 95% recall with 95% precision on test set. Preliminary tests on a small subset of a pedestrians database also gives promising 97% recall with 92% precision, which shows the generality of our new family of features. Moreover, analysis of the positions of adaBoost-selected keypoints show that they correspond to a specific part of the object category (such as "wheel" or "side skirt" in the case of lateral-cars) and thus have a "semantic" meaning. We also made a first test on video for detecting vehicles from adaBoost-selected keypoints filtered in real-time from all detected keypoints.
Year
DOI
Venue
2009
10.1109/IVS.2009.5164310
Computing Research Repository
Keywords
DocType
Volume
automobiles,image classification,learning (artificial intelligence),object detection,traffic engineering computing,video signal processing,boolean response,keypoint-based adaboost features,lateral-viewed cars,pedestrian database,vehicle video detection,visual object categorization,pattern recognition,real time
Journal
abs/0910.1
ISSN
ISBN
Citations 
1931-0587 E-ISBN : 978-1-4244-3504-3
978-1-4244-3504-3
1
PageRank 
References 
Authors
0.40
9
3
Name
Order
Citations
PageRank
Taoufik Bdiri1775.26
Fabien Moutarde25415.26
Bruno Steux3395.28