Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2002.06c
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- Pages.227-230
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- 2002
A Gaze Tracking based on the Head Pose in Computer Monitor
얼굴 방향에 기반을 둔 컴퓨터 화면 응시점 추적
Abstract
In this paper we concentrate on overall direction of the gaze based on a head pose for human computer interaction. To decide a gaze direction of user in a image, it is important to pick up facial feature exactly. For this, we binarize the input image and search two eyes and the mouth through the similarity of each block ( aspect ratio, size, and average gray value ) and geometric information of face at the binarized image. We create a imaginary plane on the line made by features of the real face and the pin hole of the camera to decide the head orientation. We call it the virtual facial plane. The position of a virtual facial plane is estimated through projected facial feature on the image plane. We find a gaze direction using the surface normal vector of the virtual facial plane. This study using popular PC camera will contribute practical usage of gaze tracking technology.
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