That sounds like a motion in-betweening task, and we've shown some results on it. However, since NeMF is a kinematics model, it is not guaranteed to produce physically-correct results, and artifacts such as foot skating are inevitable. To remedy these artifacts, you probably need to introduce some physics energy terms in the optimization, or probably you can correct NeMF results with some reinforcement learning works in physics-based character control (e.g., https://ye-yuan.com/rfc/)
That sounds like a motion in-betweening task, and we've shown some results on it. However, since NeMF is a kinematics model, it is not guaranteed to produce physically-correct results, and artifacts such as foot skating are inevitable. To remedy these artifacts, you probably need to introduce some physics energy terms in the optimization, or probably you can correct NeMF results with some reinforcement learning works in physics-based character control (e.g., https://ye-yuan.com/rfc/)