Vision - Calculating Distance

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Vision - Calculating Distance

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28-01-2016, 21:59

iSpotix

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Vision - Calculating Distance

I have been reading this screensteps article http://wpilib.screenstepslive.com/s/...ng-the-targets under the Distance section and I was confused by some things.

In particular, this:

Quote:

Vertical target rectangle measures 40 pixels when the camera resolution was 320x240. This means that the blue rectangle width is 2.66*320/30 or 21.28ft.

I understand the 320 but where do the 2.66 and 30 come in? I think I have everything else down.

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