thohemp
Query regarding face pose axis visualisation
I see that to construct rotation matrix(R) from yaw, pitch and roll angle values, you use zyx order i.e Rz * Ry * Rx, where Rz is rotation about z-axis, Ry is rotation about the y-axis, and Rx is rotation about the x-axis.
But for visualisation, it looks like the order you use is xyz i.e Rx * Ry * Rz and then use column vectors of this resulting matrix as axis coordinates (https://github.com/thohemp/6DRepNet/blob/master/utils.py#L54). May I know why this is done? Am I missing something?
Thanks.
The order of the rotation matrix is actually XYZ: https://github.com/thohemp/6DRepNet/blob/master/utils.py#L207
Dear @thohemp Thank you very much for providing a great demo :) It was very helpful.
https://github.com/thohemp/6DRepNet/blob/master/utils.py#L207 I think you got the rotation matrix using pitch-yaw-roll order. However, https://github.com/thohemp/6DRepNet/blob/master/utils.py#L54 It looks like roll-yaw-pitch order. (see how x3 and y3 are defined. They are independent on roll).
Did I think something wrong? (@shubhamwagh) Thank you.
