When i use face_alignment.FaceAlignment(face_alignment.LandmarksType.THREE_D, flip_input=False), Why the key point shape of the last picture is (1, 1, 68, 3), and the shape of other images are (1, 1, 68, 2)

[frederichen01]

When i use face_alignment.FaceAlignment(face_alignment.LandmarksType.THREE_D, flip_input=False), Why the key point shape of the last picture is (1, 3, 68, 3), and the shape of other images are (1, 1, 68, 3)