Title
Context-aware features and robust image representations
Abstract
Local image features are often used to efficiently represent image content. The limited number of types of features that a local feature extractor responds to might be insufficient to provide a robust image representation. To overcome this limitation, we propose a context-aware feature extraction formulated under an information theoretic framework. The algorithm does not respond to a specific type of features; the idea is to retrieve complementary features which are relevant within the image context. We empirically validate the method by investigating the repeatability, the completeness, and the complementarity of context-aware features on standard benchmarks. In a comparison with strictly local features, we show that our context-aware features produce more robust image representations. Furthermore, we study the complementarity between strictly local features and context-aware ones to produce an even more robust representation.
Year
DOI
Venue
2014
10.1016/j.jvcir.2013.10.006
J. Visual Communication and Image Representation
Keywords
Field
DocType
context-aware feature extraction,local feature extractor,image content,context-aware feature,robust image representation,robust representation,complementary feature,local image feature,local feature,image context,complementarity,information theory
Complementarity (molecular biology),Feature detection (computer vision),Image representation,Artificial intelligence,Information theory,Computer vision,Pattern recognition,Feature (computer vision),Feature extraction,Extractor,Completeness (statistics),Mathematics,Machine learning
Journal
Volume
Issue
ISSN
25
2
1047-3203
Citations 
PageRank 
References 
3
0.40
30
Authors
3
Name
Order
Citations
PageRank
P. Martins1152.25
Paulo Carvalho225047.68
C. Gatta352137.03