Enhancing Classroom and Distance Learning Through Augmented Reality
Christopher Coffin, Svetlin Bostandjiev, James K. Ford, Tobias Höllerer · 2010
Abstract. We present a multimedia solution for easily adding virtual annotations to class lectures through the use of augmented videoconferencing and tracked physical props. These props may be any object normally used in a lecture, such as toy cars or tops (physics), ball and stick molecules (chemistry), or frogs to be dissected (biology). In the classroom, the actions of the instructor are captured by one or more cameras. We then use a normal desktop computer to add virtual data to the camera image. Our software solution tracks the physical objects and allows for overlays of relevant information, optionally deriving information from the movement of the objects. For example, a toy car may be tracked in order to determine its velocity, which may then be displayed as a 3D arrow (vector) directly on top of the video showing the moving car. The resulting video may be sent either to a projector or monitor (to be viewed in class) or over the Internet (to be viewed by remote students). Additionally, our solution allows students to interact with the virtual data through the augmented video, even when distributed over the Internet.