Tobii 眼动接入与校准工作台
基于 Aetherall/tobiifree 的个人扩展，围绕眼动设备接入、校准质量检查和误差校正构建研究工具。上游提供设备协议与基础接入能力；本项目重点展示以下扩展。
A personal extension of Aetherall/tobiifree, focused on device access, calibration validation, and error correction for gaze research. The upstream project provides the protocol and base connectivity; the contributions below extend that foundation.
校准验证与误差校正
- 提供 5、9、13 点校准后验证，检查不同屏幕位置的注视误差。
- 在设备自带校准之上，增加仿射、二阶及三阶多项式校正，并可切换比较校正前后效果。
- 显示平均、P95、最大误差和逐点残差；支持保存、载入与导出校准方案。
- Post-calibration validation with 5-, 9-, and 13-point grids.
- Affine, quadratic, and cubic correction layered on onboard calibration, with a runtime comparison toggle.
- Mean, P95, maximum, and per-point residuals; saved, loadable, and exportable calibration profiles.
Tobii 4C 浏览器接入
在 feat/tobii-4c-support 分支扩展 WebUSB 设备识别与接入。仓库记录了 macOS / Chrome 下的 90 Hz 注视数据流和五点仿射校准验证。该支持限于 WebUSB 路径，尚未覆盖原生 Linux 守护进程。
The feat/tobii-4c-support branch adds WebUSB device detection and access. The repository documents a 90 Hz gaze stream and five-point affine calibration on macOS / Chrome. Support is limited to the WebUSB path and does not extend to the native Linux daemon.
项目处于实验阶段。校准工作台位于主分支，4C 支持位于独立分支；项目沿用上游 GPL-3.0 许可证。
Experimental software. The calibration workbench is on main, while 4C support is on a separate branch. The project retains the upstream GPL-3.0 license.