IMAGE PROCESSING SYSTEMS AND METHODS

A whiteboard image capture system comprising a camera configured to capture an image of the whiteboard viewed from an acute angle and a linear polariser having a plane substantially perpendicular to a plane of the whiteboard and having an axis of polarisation substantially perpendicular to the plane of the whiteboard or within 30° of the perpendicular to the plane of the whiteboard. The camera is configured to capture the image of the whiteboard through the polariser. A normal to the polariser is directed in a different direction to a direction defined by an optic axis of the camera. Preferably the camera has a rectilinear lens and an optical axis of the camera is directed towards said whiteboard at an angle of less than 15° to a normal to a surface of the whiteboard. In preferred embodiments the polariser is curved about an axis perpendicular to the plane of the whiteboard.