Method to improve detection of motion with phase correlation

摘要: Phase correlation is an established method for computing motion which relies on the ability to find peaks in a computed phase surface. Two methods improve detect surface are described herein. The first applies theoretically-derived and spatially-varying gain compensates whose amplitudes have been decreased due windowing effects; such effects unavoidable correlation. second uses concepts from matched filters detection of diminished spreading peak energy into surrounding positions Peak allow low-amplitude be properly detected. It possible use only method, or both combined.