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Séminaires REPARTI


Les Séminaires CerVIM, Université Laval ont lieu le vendredi à 11h30.
Veuillez consulter le programme pour plus de détails.
Nov 12 2019 11:30AM
Séminaire
Multi-Armed Bandits: Their application to automated tuning of imaging devices

 

 

 

 

REPARTI

MIVIM

May 17 2019 11:30AM

Charles-Olivier Dufresne Camaro
Department of Computer Science
University of Toronto

Appearance Shock Grammar for Fast Medial Axis Extraction from Real Images



Résumé

We combine ideas from shock graph theory with more recent appearance-based methods for medial axis extraction of complex natural scenes, allowing us to improve upon the present best unsupervised method, in terms of efficiency and performance. We make the following specific contributions: i) we extend the shock graph representation to the domain of real images, by generalizing the shock type definitions using local, appearance-based criteria; ii) we then use the rules of a Shock Grammar to guide our search for medial points, drastically reducing run time when compared to other methods, which exhaustively consider all points in the input image; iii) we remove the need for typical post-processing steps including thinning, non-maximum suppression, and grouping, by adhering to the Shock Grammar rules while deriving the medial axis solution.


Le séminaire sera présenté à 11h30 au local PLT-1120.




     
   
   

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