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A New Gaze Estimation Method Considering External Lightopen access
- Authors
- Lee, Jong Man; Lee, Hyeon Chang; Gwon, Su Yeong; Jung, Dongwook; Pan, Weiyuan; Cho, Chul Woo; Park, Kang Ryoung; Kim, Hyun-Cheol; Cha, Jihun
- Issue Date
- Mar-2015
- Publisher
- MDPI
- Keywords
- gaze tracking system; corneal SR; external light; pupil movable area
- Citation
- SENSORS, v.15, no.3, pp 5935 - 5981
- Pages
- 47
- Indexed
- SCIE
SCOPUS
- Journal Title
- SENSORS
- Volume
- 15
- Number
- 3
- Start Page
- 5935
- End Page
- 5981
- ISSN
- 1424-8220
1424-3210
- 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.
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Related Researcher
- Park, Gang Ryung
- College of Engineering (Department of Electronics and Electrical Engineering)