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  Robust, Real-time Pupil Tracking in Highly Off-axis Images

Swirski, L., Bulling, A., & Dodgson, N. (2012). Robust, Real-time Pupil Tracking in Highly Off-axis Images. In S. N. Spencer (Ed.), Proceedings ETRA 2012 (pp. 173-176). NEw York, NY: ACM.

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 Urheber:
Swirski, Lech1, Autor
Bulling, Andreas1, Autor           
Dodgson, Neil1, Autor
Affiliations:
1External Organizations, ou_persistent22              

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Schlagwörter: -
 Zusammenfassung: Robust, accurate, real-time pupil tracking is a key component for online gaze estimation. On head-mounted eye trackers, existing algorithms that rely on circular pupils or contiguous pupil regions fail to detect or accurately track the pupil. This is because the pupil ellipse is often highly eccentric and partially occluded by eyelashes. We present a novel, real-time dark-pupil tracking algorithm that is robust under such conditions. Our approach uses a Haar-like feature detector to roughly estimate the pupil location, performs a k-means segmentation on the surrounding region to refine the pupil centre, and fits an ellipse to the pupil using a novel image-aware Random Sample Concensus (RANSAC) ellipse fitting. We compare our approach against existing real-time pupil tracking implementations, using a set of manually labelled infra-red dark-pupil eye images. We show that our technique has a higher pupil detection rate and greater pupil tracking accuracy.

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Sprache(n): eng - English
 Datum: 2012-05
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1145/2168556.2168585
BibTex Citekey: swirski2012_etra
 Art des Abschluß: -

Veranstaltung

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Titel: ETRA 2012
Veranstaltungsort: Santa Barbara, CA
Start-/Enddatum: 2012-03-28 - 2012-03-30

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Titel: Proceedings ETRA 2012
  Kurztitel : ETRA 2012
  Untertitel : Eye Tracking Research and Applications Symposium
Genre der Quelle: Konferenzband
 Urheber:
Spencer, Stephen N., Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: NEw York, NY : ACM
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 173 - 176 Identifikator: -