Accurate eye centre localisation by means of gradients

Fabian Timm, Erhardt Barth


The estimation of the eye centres is used in several computer vision applications such as face recognition or eye tracking. Especially for the latter, systems that are remote and rely on available light have become very popular and several methods for accurate eye centre localisation have been proposed. Nevertheless, these methods often fail to accurately estimate the eye centres in difficult scenarios, e.g. low resolution, low contrast, or occlusions. We therefore propose an approach for accurate and robust eye centre localisation by using image gradients. We derive a simple objective function, which only consists of dot products. The maximum of this function corresponds to the location where most gradient vectors intersect and thus to the eye’s centre. Although simple, our method is invariant to changes in scale, pose, contrast and variations in illumination. We extensively evaluate our method on the very challenging BioID database for eye centre and iris localisation. Moreover, we compare our method with a wide range of state of the art methods and demonstrate that our method yields a significant improvement regarding both accuracy and robustness.
TitelProceedings of the International Conference on Computer Vision Theory and Applications
Redakteure/-innenJosé Braz, Leonid Mestetskiy
ErscheinungsortAlgarve, Portugal
Herausgeber (Verlag)SciTePress
ISBN (Print)978-989-8425-47-8
PublikationsstatusVeröffentlicht - 2011
VeranstaltungInternational Conference on Computer Vision Theory and Applications 2011 - Vilamoura, Portugal
Dauer: 05.03.201107.03.2011


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