Eye movement directory

Directory content: This directory contains 20 .CSV files including 187 parameters related to eye movements (recorded at 120 Hz) and cameras calibrations for each driver (ID_Number_EyeMovementSignals). From the original 21 files, due to log system failures during the recording session, data from one driver (driver ID #69) are missing. All files were pre-processed in two steps to ensure the correct sampling rate: we (i) removed lines with timestamps repetitions, and (ii) resampled to 120 Hz using regularly spaced and linear interpolation. This directory also includes a .CSV file reporting data description (Legend_DataEyeMovement) and a .SEW file (3DWorldModelDescription; readable as .txt file) reporting the 3D World Model definition.Method and instrument: We collected drivers’ eye movements through the Smart Eye PRO system remote eye tracker (120 Hz; v9.0; Smart Eye AB, Gothenburg, Sweden). The device consists of four IR cameras (2 central cameras [12 mm lens] and 2 lateral cameras [8 mm lens]) placed at ∼ 115 cm of distance from the driver’s face (angled from below ∼ 45°), covering a total field view of ∼ 180°. Multiple sources of IR lights (three for each lateral camera) were employed to enhance the driver’s face contrast. For each driver, we adjusted the system (camera’s direction, brightness [aperture], and focus) and we then performed a 12-point gaze calibration.目录说明：本目录包含20个CSV文件，涵盖187项与驾驶员眼动数据（采样率120Hz）及各驾驶员相机标定相关的参数，文件命名格式为ID_Number_EyeMovementSignals。原始数据集共21个文件，因录制过程中日志系统故障，编号为#69的驾驶员的眼动数据缺失。所有文件均经过两步预处理以确保采样率符合要求：（1）删除存在重复时间戳的行；（2）采用等间距线性插值法将数据重采样至120Hz。本目录还包含一份用于说明数据集字段含义的CSV文件（命名为Legend_DataEyeMovement），以及一份用于阐述三维世界模型（3D World Model）定义的SEW文件（文件原名为3DWorldModelDescription，可作为.txt文件直接读取）。研究方法与仪器：本研究通过Smart Eye PRO系列远程眼动仪（采样率120Hz，版本v9.0，瑞典哥德堡Smart Eye AB公司生产）采集驾驶员眼动数据。该设备配备4台红外（Infrared, IR）相机，其中2台为中央相机（搭载12mm镜头），2台为侧方相机（搭载8mm镜头）；安装位置距驾驶员面部约115cm，安装角度为从下方向上约45°，总视场角约180°。设备搭载多组红外光源（每台侧方相机配备3组），用于提升驾驶员面部的成像对比度。针对每位驾驶员，研究人员均会先调整系统参数（包括相机朝向、亮度[光圈]及焦距），随后完成12点注视标定。