Figure 2
From: Learning search polices from humans in a partially observable context
Experimental setup. Top left: A participant is trying to locate the green wooden block on the table given that both vision and hearing senses have been inhibited; the location of his hand is being tracked by the OptiTrack®; system (NaturalPoint, Inc., Corvallis, OR, USA). Top right: Initial distribution of the uncertainty or belief we assume the human has with respect to his position. Bottom right: Set of recorded searches. The trajectories are with respect to the hand. Bottom right: Trajectories starting from the same area but have different search patterns. The red trajectories all navigate to the goal via the top right corner as opposed to the blue which go by the bottom left and right corners. Among these two groups, there are trajectories which seem to minimize the distance taken to reach the goal as opposed to some which seek to stay close to the edge and corners.