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Help on tracking motion of feet and wrist

Help on tracking motion of feet and wrist

(OP)
I am mechanical engineer with very little background on electrical engineering. I would like to create a device that tracks the position of the feet relative to the wrist. This is to be used outdoors for people that play sports and it is to be confined within an area of 15x30 meters. The idea is for specific times, not continuously, know the relative position of the wrist to the two feet within an accuracy of a couple cm. The horizontal position is very important, the vertical one less important. The orientation of the feet and wrist is also important to know. Any ideas how can that be accomplished? Would inertial measurement units work or other technology is needed?

RE: Help on tracking motion of feet and wrist

Try contacting APDM at apdm.com. They produce inertial devices that may be able to do what you need.

Note: I am not affiliated with APDM in any fashion.

xnuke
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RE: Help on tracking motion of feet and wrist

you can do as suggested above, or you can go to a number of motion capture places, where it's done indoors, and colored balls are attached to various parts of various bodies and a special lighting is used for the balls and cameras. The video is digitized by them and they produce a 3-D video of all the ball locations at all times. This is how some of the CGI animations are done.

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