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06 May 2009
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Fast Multi-Class Image Annotation with Random Subwindows and Multiple Output Randomized Trees
Dumont, Marie; Marée, Raphaël  ; Wehenkel, Louis  et al.
2009 • In Proc. International Conference on Computer Vision Theory and Applications (VISAPP)
Peer reviewed
 

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Abstract :
[en] This paper addresses image annotation, i.e. labelling pixels of an image with a class among a finite set of predefined classes. We propose a new method which extracts a sample of subwindows from a set of annotated images in order to train a subwindow annotation model by using the extremely randomized trees ensemble method appropriately extended to handle high-dimensional output spaces. The annotation of a pixel of an unseen image is done by aggregating the annotations of its subwindows containing this pixel. The proposed method is compared to a more basic approach predicting the class of a pixel from a single window centered on that pixel and to other state-of-the-art image annotation methods. In terms of accuracy, the proposed method significantly outperforms the basic method and shows good performances with respect to the state-of-the-art, while being more generic, conceptually simpler, and of higher computational efficiency than these latter.
Disciplines :
Computer science
Author, co-author :
Dumont, Marie;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst. Montefiore) > Systèmes et Modélisation
Marée, Raphaël  ;  Université de Liège - ULiège > GIGA-Management : Plateforme bioinformatique
Wehenkel, Louis ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Geurts, Pierre ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Fast Multi-Class Image Annotation with Random Subwindows and Multiple Output Randomized Trees
Publication date :
February 2009
Event name :
International Conference on Computer Vision Theory and Applications (VISAPP)
Event organizer :
INSTICC
Event place :
Lisbon, Portugal
Event date :
Février 2009
Audience :
International
Main work title :
Proc. International Conference on Computer Vision Theory and Applications (VISAPP)
Pages :
196-203
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
FEDER - Fonds Européen de Développement Régional
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique

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