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Is this test pattern in use in other known research?

Most of the test patterns I've encountered in using 'OpenCV' [1], 'laser scanning'[2], and 'structured light scanning' [3] have used equal sized geometric shapes. Not increasing in scale, so maybe that's useful.

[1] http://graphics.stanford.edu/~vaibhav/projects/calib-cs205/c...

[2] http://www.david-laserscanner.com/wiki/_media/user_manual/sc...

http://www.sciencedirect.com/science/article/pii/S0143816607...

[3] http://opticalengineering.spiedigitallibrary.org/data/Journa...



It is known as the 1951 USAF Test Chart, and it is and was a standard:

http://en.wikipedia.org/wiki/1951_USAF_resolution_test_chart


Exactly what I was looking for, thanks.

It seems the 'Milspec' status is:

  MIL-STD-150A, dated 06 January 1998, is hereby cancelled without replacement.
With as many multi-spectral instruments we have floating about, I wonder what other shapes, compositions, or controlled temperature gradients might be in use under our noses.


Don't think spatial calibration, think eye chart: https://www.google.com/search?q=eye+chart


It's very common in microscopy, to check your resolution.




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