Collewet08d
C. Collewet, E. Marchand. Modeling complex luminance variations for target tracking. In IEEE Int. Conf. on Computer Vision and Pattern Recognition, CVPR'08, Anchorage, Alaska, June 2008.
Download [help]
Download paper:
Doi page 
Download Hal paper:
Download paper:
Adobe portable document (pdf) 
Copyright notice:
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder. This page is automatically generated by bib2html v217, © Inria 2002-2024, Projet Lagadic/Rainbow
Abstract
Lambert's model is widely used in low level computer vision algorithms such as matching, tracking or optical flow computation for example. However, it is well known that these algorithms often fail when they face complex luminance variations. Therefore, we revise in this paper the underlying hypothesis of its temporal constancy and propose a new optical flow constraint. To do that, we use the Blinn-Phong reflection model to take into account that the scene may move with respect to the lighting and/or to the observer, and that specular highlights may occur. To validate in practice these analytical results, we consider the case where a camera is mounted on a robot end-effector with a lighting mounted on this camera and show experimental results of target tracking by visual servoing. Such an approach requires to analytically compute the luminance variations due to the observer motion which can be easily derived from our revised optical flow constraint. In addition, while the visual servoing classical approaches rely on geometric features, we present here a new method that directly relies on the luminance of all pixels in the image which does not require any tracking or matching process
Contact
BibTex Reference
@InProceedings{Collewet08d,
Author = {Collewet, C. and Marchand, E.},
Title = {Modeling complex luminance variations for target tracking},
BookTitle = {IEEE Int. Conf. on Computer Vision and Pattern Recognition, CVPR'08},
Address = {Anchorage, Alaska},
Month = {June},
Year = {2008}
}
EndNote Reference [help]
Get EndNote Reference (.ref)