How to interpolate between two 2D pose-frames (each containing 18 joints)

[mmdrahmani]

Hi. I have a question regarding motion in-between-ing.

I have two images (frames) and I extracted YX positions of 18 joints (see the figure). I would like to use these two images as input_motions, one image as starting pose, and the other image as end pose. And then by motion editing I'd like to generate a few pose-frames in between these two frames. I wonder if this is possible, because currently the sample/edit.py, the input_motions has a shape of 1,263,1,196(n_frame). I do not how to transform my 18-joint XY coordinates into this 263 input shape.

Any suggestions are much appreciated. Thanks