This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
Robust detection of semantically equivalent visually dissimilar objects
Anchorage, AK, USA
June 23-June 28
ISBN: 978-1-4244-2339-2
Taeil Goh, San Francisco State University, CA 94132, USA
Ryan West, San Francisco State University, CA 94132, USA
Kazunori Okada, San Francisco State University, CA 94132, USA
We propose a novel and robust detection of semantically equivalent but visually dissimilar object parts with the presence of geometric domain variations. The presented algorithms follow a part-based object learning and recognition framework proposed by Epshtein and Ullman. This approach characterizes the location of a visually dissimilar object (i.e., root fragment) as a function of its relative geometrical configuration to a set of local context patches (i.e., context fragments). This work extends the original detection algorithm for handling more realistic geometric domain variation by using robust candidate generation, exploiting geometric invariances of a pair of similar polygons, as well as SIFT-based context descriptors. An entropic feature selection is also integrated in order to improve its performance. Furthermore, robust voting in a maximum density framework is realized by variable bandwidth mean shift, allowing better root detection performance with the presence of significant errors in detecting corresponding context fragments. We evaluate the proposed solution for the task of detecting various facial parts using FERET database. Our experimental results demonstrate the advantage of our solution by indicating significant improvement of detection performance and robustness over the original system.
Citation:
Taeil Goh, Ryan West, Kazunori Okada, "Robust detection of semantically equivalent visually dissimilar objects," cvprw, pp.1-8, 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, 2008
Usage of this product signifies your acceptance of the Terms of Use.