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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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The gaze estimaton is direction vector #263

Closed HouseCui closed 7 years ago

HouseCui commented 7 years ago

Hello Tadas： First I want to say the OpenFace is a very practical a framework。And I want to do somthing in gaze estimation。

For the gaze of the output data can I understand that the head posture is the same as the angle of the left and right eyes? Such as the head position in the X = pitch, Y = yaw, Z = roll? And if I can use these code to calculate the angle:

` int yaw = (int)(pose_estimate_to_draw[4] * 180 / 3.1415926 + 0.5);

    int roll = (int)(pose_estimate_to_draw[5] * 180 / 3.1415926 + 0.5);

int pitch = (int)(pose_estimate_to_draw[3] * 180 /3.1415926 + 0.5);

std::cout<<"yaw:"<<yaw<<"roll:"<<roll<<"pitch:"<<pitch<<endl`
TadasBaltrusaitis commented 7 years ago

Hi,

Glad you are finding OpenFace useful. You are right about head pose angles, they represent pitch, yaw, and roll. The code for angle calculation looks correct.

Thanks, Tadas