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引用次数: 15

摘要

本文描述了基于视觉技术的非侵入式注视驱动人机交互界面的初步工作。使用图像到屏幕映射的线性模型来评估用户指向的当前计算机屏幕位置,该模型可以在运行时根据相机、用户和相机设置的当前相对位置轻松地自动校准。定义了一个简单的活动变形眼模型,该模型既用于跟踪用户的运动,又以解耦的方式估计用户瞳孔在图像中的当前位置。实验表明,该方法能够快速准确地设计出低成本的人机界面,应用范围从残疾人辅助到多媒体系统。
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Prototype of a vision-based gaze-driven man-machine interface
This paper describes preliminary work on a non-intrusive gaze-driven interface for man-machine interaction based on vision techniques. The current computer screen location pointed at by the user is evaluated using a linear model of image-to-screen mapping, which can be easily auto-calibrated at run-time on the basis of the current relative position of camera and user and camera settings. A simple active deformable model of the eye is defined, which is used both to track user's movements and estimate the current position of the user's pupil in the image in a decoupled fashion. Experiments show that the proposed approach is fast and accurate enough for the design of low-cost man-machine interfaces, with applications ranging from the assistance to the disabled people to multimedia systems.
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