Motion Amplification in Video Using Optical Flow

Report No. ARL-TR-8776
Authors: John S Hyatt, Samuel Edwards, and Michael S Lee
Date/Pages: September 2019; 26 pages
Abstract: This is a guide and demonstration of motion amplification in video using optical flow. The technique amplifies small motions that are invisible in the original video, rendering them visible to the naked eye. Restricting the amplification to specific frequency bands (e.g., those corresponding to peaks in the video's power spectral density) eliminates noise and isolates individual modes of vibration, precession, and so on.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2019