US Patent 9762855 Sharing physical whiteboard content in electronic conference

A technique for sharing a physical target board over an electronic conference includes transforming live video from a webcam into output video that provides an enhanced view of the physical target board. The output video is shared with one or more computing machines of conference participants to enable such participants to see the enhanced view of the physical target board in real time. The conference participants can thus enjoy enhanced images of the physical board and its content, which would otherwise be difficult or impossible to see.