Was Ewan McGregor TOO Fast For Star Wars? Physics and Video Analysis Gives the Answer.
<p>If you aren’t familiar with video analysis, let me give a brief overview. Basically, it’s possible to position-time data from a video. The time part is usually easy. If the video plays at 30 frames per second, then the time from one frame to the next would be 1/30 seconds. The position of an object can be determined by looking at the location in terms of pixels (where a video might be 1080 pixels high and 1920 wide (for a typical video).</p>
<p>Of course, no one wants the position of an object in units of pixels — that’s not very useful. We can fix this if there is an object of known size in the video frame. This can be used to scale the video and get a conversion factor between pixels and meters (the preferred unit of distance for Rebels — the Imperials use feet).</p>
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