Capturing dial data using python openCV

asked 2015-10-10 03:28:18 -0600

crease gravatar image

updated 2015-10-11 03:10:31 -0600

berak gravatar image

I have some video of an instrument panel in an aeroplane which is of pretty good quality. What I would like to do is track the dials of each instrument and somehow log the dial position with respect to time (about 1HZ is probably fine). Essentially turning a piece of video footage of a dial or guage into a data file for a spreadsheet etc.

Doesnt need to be real time and can be one intrument at a time - does anyone know if this is possible using OpenCV and whether there are any online resources? Many thanks!

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for dials, logPolar() will be helpful to unroll it to a flat, rectangular strip

berak gravatar imageberak ( 2015-10-10 03:49:28 -0600 )edit

Here we go, this is a generic view. Ideally I could capture each of the dials but there are obviously some which are easier than others. Any ideas?

Many thanks!

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crease gravatar imagecrease ( 2015-10-10 13:32:28 -0600 )edit

please provide 2 or 3 different images having different values. then i can suggest some approach to solve your problem. if your video is stabilized i think it is not too hard to implement

sturkmen gravatar imagesturkmen ( 2015-10-11 10:38:08 -0600 )edit
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