Table R1

ISO can perform model adaptation with a batch of instances, if available. Comparison based on faster version of ISO will be added in the revision. During inference, it is updated using Eqn. We will add more details in the revision. ISO makes marginal improvement over Joint (from 42.6 to 41.8 in MPJPE) since training and testing However, even though there is no significant distribution shift, ISO still makes positive effect.