You 2 Me : Inferring Body Pose in Egocentric Video via First and Second Person Interactions by Evonne

The body pose of a person wearing a camera is of great interest for applications in augmented reality, healthcare, and robotics, yet much of the person’s body is out of view for a typical wearable camera. We propose a learning-based approach to estimate the camera wearer’s 3D body pose from egocentric video sequences. Our key insight is to leverage interactions with another person— whose body pose we can directly observe—as a signal inherently linked to the body pose of the first-person subject. We show that since interactions between individuals often induce a wellordered series of back-and-forth responses, it is possible to learn a temporal model of the interlinked poses even though one party is largely out of view. We demonstrate our idea on a variety of domains with dyadic interaction and show the substantial impact on egocentric body pose estimation, which improves the state of the art.