Automated Movie Frame Extracting and Geotagging

This is a short tutorial on an automated method to extract and geotag movie frames.  One specific use case is that you have just flown a survey with your quad copter using a 2-axis gimbal pointing straight down, and a gopro action cam in movie mode.  Now you’d like to create a stitched map from your data using tools like pix4d or agisoft.

The most interesting part of this article is the method I have developed to correlate the frame timing of a movie with the aircraft’s flight data log.  This correlation process yields a result such that for any …
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