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TadasBaltrusaitis / OpenFace

OpenFace – a state-of-the art tool intended for facial landmark detection, head pose estimation, facial action unit recognition, and eye-gaze estimation.
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gaze estimation #689

Open SophieChang66 opened 5 years ago

SophieChang66 commented 5 years ago

hello, thanks for sharing your code! I want to know why the eye ball center comes from facelandmakrs3d when computing gaze. how differenece the eye ball center from the eye landmakrs3d.

TadasBaltrusaitis commented 5 years ago

The eye ball center from eye landmarks is often inaccurate, it seems to overfit and it is quite possible that it's really difficult to estimate the scale of the eyeball (and hence the distance) just from eye landmarks, while it is easier to do so from the entire face. Hence, the choice to use the entire face landmarks for eye ball center estimation.

SophieChang66 commented 5 years ago

thank you for your reply~ @TadasBaltrusaitis