| 摘要 |
A method is disclosed for detection of miniature security mark configuration s within documents and images, wherein the miniature security marks are in the form of dispersed miniature security marks and may include data marks or a combination of data marks and anchor marks. The method includes sub-sampling a received image, which is a digital representation possible recipient(s) of the miniature security marks, to generate a reduced-resolution image of the received image. Maximum/minimum points detection is performed and the maximum/minimum points are grouped into one or more clusters according to location distances betwee n the maximum/minimum points. Group configuration is checked to match the clusters with a pre-defined template configuration. Dot parameter verification is then performed to verify mark location and configuration between the received image and a pre- defined template dot specification.
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