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Measuring Rooms with Fiducial Markers: AprilTag vs ArUco
Daniel's trying to measure his new apartment with photos, but AR apps keep drifting. In this episode, we dive into fiducial markers — AprilTags, ArUco, ChArUco, and plain checkerboards — to figure out which one can actually establish accurate scale in a normal smartphone photo. We cover how pose estimation works, why scale only transfers on a single plane, and what the ideal physical reference board looks like. If you've ever wondered why your phone says one thing and the tape measure says another, this one's for you. Episode 4575 — myweirdprompts.com/n/4575 (permanent short link…
The skinny
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