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Journal Article
A New Gaze Estimation Method Considering External Light
- Authors
- Jong Man Lee, Hyeon Chang Lee, Su Yeong Gwon, Dongwook Jung, Weiyuan Pan, Chul Woo Cho, Kang Ryoung Park, Hyun-Cheol Kim, Jihun Cha
- Issue Date
- 2015-03
- Citation
- Sensors, v.15, no.3, pp.5935-5981
- ISSN
- 1424-8220
- Publisher
- MDPI AG
- Language
- English
- Type
- Journal Article
- Abstract
- Gaze tracking systems usually utilize near-infrared (NIR) lights and NIR cameras, and the performance of such systems is mainly affected by external light sources that include NIR components. This is ascribed to the production of additional (imposter) corneal specular reflection (SR) caused by the external light, which makes it difficult to discriminate between the correct SR as caused by the NIR illuminator of the gaze tracking system and the imposter SR. To overcome this problem, a new method is proposed for determining the correct SR in the presence of external light based on the relationship between the corneal SR and the pupil movable area with the relative position of the pupil and the corneal SR. The experimental results showed that the proposed method makes the gaze tracking system robust to the existence of external light.
- KSP Keywords
- Corneal SR, External light, Gaze Estimation, Gaze tracking system, Light source, Near-infrared, Pupil movable area, Relative position, estimation method, new method, specular reflection
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
