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Problem Addressed

Many physical phenomena exhibit minute motions that, when recorded, require computational amplification to be perceived by the naked eye. Current phase-based video magnification techniques use complex steerable pyramid decompositions of images that are overcomplete and costly to construct, making them slow and non-trivial to implement in real time. The Inventors propose a method for real-time, phase-based video magnification that uses the Riesz pyramid, a novel image pyramid representation suitable for Eulerian phase-based video magnification. Its motion magnified videos are of comparable quality to those produce by complex steerable pyramids but can be processed in a quarter of the time, making it more suitable for real-time or online processing.