Nonmechanical image rotation with an acousto-optic dove prism

Summary form only given. Image rotation is important for various applications such as rotational invariant pattern recognition, computer graphics, and beam steering of phased-array antennas. Most of the techniques rely on the mechanical rotation of a dove prism. However, such a mechanical process is slow and unreliable. We propose a new image rotation method that is both nonmechanical and programmable to permit rotation of an image to an arbitrary angle in a controllable manner.