This publication describes techniques for automatically determining a frame rate for use in time-lapse photography. A tracking box containing pixels corresponding to an object that is moving within a field of view of an imaging device is first determined, either autonomously or based on user input. Successive frames are then taken at an initial frame rate, and the tracking box is identified in each of the frames. A pixel-change ratio is then calculated that represents a percentage of the pixels within the tracking box that moved and/or changed between the successive frames. The frame rate for the time-lapse is then determined based on the pixel-change ratio.
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Gupta, Aman, "Techniques for Automatically Determining a Time-Lapse Frame Rate", Technical Disclosure Commons, (May 15, 2020)