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Vision-enhanced Immersive Interaction and Remote Collaboration with Large Touch Displays

Large displays are becoming commodity, and more and more, they are touch-enabled. In this keynote, we describe a system called ViiBoard (Vision-enhanced Immersive Interaction with touch Board) that enables natural interaction and immersive remote collaboration with large touch displays by adding a commodity color plus depth sensor. It consists of two parts. The first part is called VTouch that augments touch input with visual understanding of the user to improve interaction with a large touch-sensitive display such as Microsoft Surface Hub. An RGBD sensor such as Microsoft Kinect adds the visual modality and enables new interactions beyond touch. Through visual analysis, the system understands where the user is, who the user is, and what the user is doing even before the user touches the display. Such information is used to enhance interaction in multiple ways. For example, a user can use simple gestures to bring up menu items such as color palette and soft keyboard; menu items can be shown where the user is and can follow the user; hovering can show information to the user before the user commits to touch; the user can perform different functions (for example writing and erasing) with different hands; and the user's preference profile can be maintained, distinct from other users. User studies are conducted and the users very much appreciate the value of these and other enhanced interactions. The second part is called ImmerseBoard. ImmerseBoard is a system for remote collaboration through a digital whiteboard that gives participants a 3D immersive experience, enabled by an RGBD sensor mounted on the side of a large touch display (the same setup as in VTouch). Using 3D processing of the depth images, life-sized rendering, and novel visualizations, ImmerseBoard emulates writing side-by-side on a physical whiteboard, or alternatively on a mirror. User studies involving three tasks show that compared to standard video conferencing with a digital whiteboard, ImmerseBoard provides participants with a quantitatively better ability to estimate their remote partners' eye gaze direction, gesture direction, intention, and level of agreement. Moreover, these quantitative capabilities translate qualitatively into a heightened sense of being together and a more enjoyable experience. ImmerseBoard's form factor is suitable for practical and easy installation in homes and offices.