| http://www.w3.org/ns/prov#value | - Steps 320 and 330 may be performed by way of techniques that are well known in the art, such as filtering, binarization or thresholding, and utilization of the distance between different pairs of dots or utilization of Fourier transforms, as is described for instance in U.S. Pat. No. 6,548,768 and US 2002/0044138.
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