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Jul 31, 2016, 10:15 PM
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Motion tracking camera begins

So with the Feiyu busted, there's nothing to do than try some other project. The latest idea with the Feiyu was to replace the MOSFETs with some other motor controller which didn't have the reluctance problem. Perhaps it would mean running 9 extra wires outside the gimbal, making it so cumbersome as to defeat the purpose of using a Feiyu in the 1st place. Ideally, there would be replacement MOSFETs with lower deadband, but the same form factor. The means by which the Chinese overcame the reluctance is another great mystery which you just have to forget about in the name of having something work.

It was finally time to go ahead with the motion tracking camera. The motion tracking camera could always have been a very compact Gopro deal, using standard servos. The supply of standard servos is now considered consumable, as the lunchbox destroys them all. The X-Y platform had been around for 3 years with something like this in its future. It was decided to go for the maximum dynamic range of the DSLR.

A webcam would provide the machine vision to the computer, since capturing the DSLR's analog video would take more space. The entire X-Y platform is lighter than the Giotto head, so it was decided to mock it up in place of the tripod head. Designing the mockup & attaching it to the tripod took 2 days.

The mane problem is any motion tracking algorithm depends on a camera that moves to track the motion. It can't detect motion when the camera is moving. There are some ideas for solving this.
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