An formula error (rotation matrics) in paper Few-Shot Adaptive Gaze Estimation

[XieZixiUSTC]

3.2.1 Architecture Overview
the frontal orientation of eyes and heads in our setting
can be represented as (0, 0) in Euler angles notation for azimuth and elevation, respectively assuming no roll, and using the x−y convention. Then, the rotation of the eyes and the head from the frontal orientation can be described us- ing (θg, φg) and
in Euler angles and converted to
rotation matrices defined as,

in this description (The frontal orientation of eyes and heads in our setting
can be represented as (0, 0) in Euler angles notation for azimuth and elevation, respectively assuming no roll) i understood that θ, φ is yaw,pitch respectively, but in rotaion matrices is the opposite. could you explain it,thanks .

[XieZixiUSTC]

?
cos φ 0 sin φ
?
1 0 0
R(θ, φ) =
?
0 1 0
−sin φ 0 cos φ
?
? ?
0 cos θ −sin θ
? . ?
0 sin θ
cos θ