Abstract: Response methods to human abnormal behaviors for a mobility aid robot having a user-facing camera are disclosed. The mobility aid robot responds to human abnormal behaviors by detecting a face of a human during the robot aiding the human to move through the camera, comparing an initial size of the face and an immediate size of the face in response to the face of the human having detected during the robot aiding the human to move, determining the human as in abnormal behavior(s) in response to the immediate size of the face being smaller than the initial size of the face, and performing response(s) corresponding to the abnormal behavior(s) in response to the human being in the abnormal behavior(s), where the response(s) include slowing down the robot.

Abstract: A system for providing a user of a virtual reality (VR) system with physical interactions with an object in the real world or in the surrounding physical space while they are concurrently interacting in the virtual world with a corresponding virtual object. The real world object is dynamic with the system including a physical interaction system that includes a robot with a manipulator for moving, positioning, and/or orienting the real world object to move it into contact with the user. For example, the physical object is moved into contact with a tracked body part of the user at a time that is synchronized with a time of an interaction event occurring in the virtual world being created by the VR system. Further, a system is described for providing a dynamic physical interaction to a human participant, e.g., a fast and compelling handover in an augmented reality (AR) system.

Abstract: A system for providing a user of a virtual reality (VR) system with physical interactions with an object in the real world or in the surrounding physical space while they are concurrently interacting in the virtual world with a corresponding virtual object. The real world object is dynamic with the system including a physical interaction system that includes a robot with a manipulator for moving, positioning, and/or orienting the real world object so as to move it into contact with the user. For example, the physical object is moved into contact with a tracked body part of the user, such as a hand, a tracked contact surface on the user's body, and so on, at a time that is accurately synchronized with a time of an interaction event occurring in the virtual world being created by the VR system.