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Investigation of Calibration Techniques in Video Based Eye Tracking System

机译：基于视频的眼动追踪系统中标定技术的研究

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摘要

Exact calibration in real time is critical for gaze control systems. Five different calibration techniques were investigated: a standard calibration using linear and second order models (9 and 25 points); 2D mapping with interpolation; a mapping with developed model, describing eye image formation process. Results show that there is no significant difference between polynomial calibration method and a mapping with developed model. Calibration using model has an advantage, because there is no need to follow a whole calibration points each time. The point of gaze accuracy achieved during experiments is less than 1 degree.
机译：实时精确校准对于注视控制系统至关重要。研究了五种不同的校准技术：使用线性和二阶模型（9和25点）的标准校准；带插值的2D映射；开发模型的映射，描述眼睛图像形成过程。结果表明，多项式校正方法与已开发模型的映射之间没有显着差异。使用模型进行校准具有优势，因为无需每次都遵循整个校准点。实验过程中获得的凝视点精度小于1度。

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