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Aiming at several common drawbacks of existing gaze tracking algorithm which is based on image processing technology: low accuracy, low suitability and high requirement of device, this paper presents an improved gaze tracking method based on the human eye model. The vision scatter model is established by studying the relationship among the center of iris, inner corner of eye and the gaze direction...
In this paper, the two invariants in the perspective projection model of camera imaging process are analyzed and a five-point constraint is put forward. And then methods of determining the true projective position of the circular target using a concentric circular target, and an optimal method of suppressing stochastic errors in the location of circle centers with the optimization object function...
The location of a circular target plays an important role in the computer vision. The two invariants in the perspective projection model of camera imaging process is analyzed and a five-point constraints and the optimization object function based on cross-ratio and the straightness of the fitting line is put forward, and then a method of suppressing stochastic errors in the location of circle centers...
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