Hand Tracking

I wanted to know if there was a good technique with tracking hands that are simulating the use of a touch screen…like an iPad or iPhone. I have a square tracked to the hand and then a roto shape of the hand but I have to use so many keyframes because of the movement of the fingers…is there a nore efficient technique?

I wanted to know if there was a good technique with tracking hands that are simulating the use of a touch screen…like an iPad or iPhone. I have a square tracked to the hand and then a roto shape of the hand but I have to use so many keyframes because of the movement of the fingers…is there a nore efficient technique?