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Jul 15, 2014, 08:04 PM
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Follow cam ideas

Key to the follow cam concept is object tracking & distance measurement. Just doing that without flying anything would be huge.

It's a little easier than full motion capture, since it only needs distance & position. It's a little harder, since there's only 1 camera. Doing that in daylight is still a hard problem. The last work Vicon showed was in 2011. It wasn't very convincing.

Lately, the Goog found a photo of a guy in a full body suit, covered in pattern markers. So obviously IR keying didn't work well enough. They replaced the reflective balls or LED emitters with more unique patterns a blob tracker could find.

Thresholding that didn't look good. The head & body might resolve, but the arm is gone. A really good piece of software could combine multiple cameras to get all the blobs, but a UAV only has 1 camera.

They also tried LED emitters on the previous sequel. What's needed is a better marker & high enough resolution camera so the marker can have enough unique features. Some bands of different types of hieroglyphics on multiple body parts might work. If 1 band is covered, it knows which body part another band belongs to, but not the distance between the bands. It may be that a tether is good enough to measure distance.

It's a fascinating problem on the cusp of being solved, but best left to the pros. There are so many people now pursuing UAVs, so many experts in machine vision, navigation, & Kalman filters compared to 3 years ago, it's solvable in short order.
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