Predicting the Next Action by Modeling the Abstract Goal
摘要
The problem of predicting human actions from observed videos is an inherently uncertain one. We present an action anticipation model that leverages latent goal information to reduce the uncertainty in future predictions. We develop a latent variable representing goal information called abstract goal which is conditioned on observed sequences of visual features for action anticipation. We design the abstract goal as a distribution whose parameters are estimated using a variational recurrent model. We sample multiple candidates for the next action and use goal consistency criterion to determine the best candidate that follows from the abstract goal. Our method obtains impressive results on the very challenging Epic-Kitchens55 (EK55) and good results in Epic-Kitchens100 (EK100) datasets. Code is available at https://github.com/LAHAproject/Abstract_Goal