How accurate euler angle estimation?

[mrgloom]

How accurate euler angle estimation? i.e. is there any data with ground truth yaw, pitch, raw to compute error introduced by solvepnp method?

Can you elaborate on how f_x was estimated?

PFLD/euler_angles_utils.py

Line 11 in cbe3d2e

 f_x = c_x / np.tan(60/2 * np.pi / 180) 

Seems here they just use width of image for fx, fy.

Also about landmarks_3D, where do these values come from?