Paper Info
Title
Visual attention guided features selection with foveated images.
Abstract
Visual attention is a very important task in autonomous robotics, but, because of its complexity, the processing time required is significant. We propose an architecture for feature selection using foveated images that is guided by visual attention tasks and that reduces the processing time required to perform these tasks. Our system can be applied in bottom–up or top–down visual attention. The foveated model determines which scales are to be used on the feature extraction algorithm. The system is able to discard features that are not extremely necessary for the tasks, thus, reducing the processing time. If the fovea is correctly placed, then it is possible to reduce the processing time without compromising the quality of the tasks' outputs. The distance of the fovea from the object is also analyzed. If the visual system loses the tracking in top–down attention, basic strategies of fovea placement can be applied. Experiments have shown that it is possible to reduce up to 60% the processing time with this approach. To validate the method, we tested it with the feature algorithm known as speeded up robust features (SURF), one of the most efficient approaches for feature extraction. With the proposed architecture, we can accomplish real time requirements of robotics vision, mainly to be applied in autonomous robotics.
Year
DOI
Venue
2013
10.1016/j.neucom.2012.10.033
Neurocomputing
Keywords
Field
DocType
Foveation,Visual attention,Feature extraction,Multi-resolution
Computer vision,Architecture,Feature extraction algorithm,Pattern recognition,Feature selection,Computer science,Feature extraction,Visual attention,Artificial intelligence,Robotics
Journal
Volume
ISSN
Citations 
120
0925-2312
5
PageRank 
References 
Authors
0.42
30
3
Name
Order
Citations
PageRank
Rafael Beserra Gomes1314.14
Bruno Motta de Carvalho2111.48
Luiz Marcos Garcia Gonçalves3445.88