Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
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A lock (
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connected to the .gov website. Share sensitive
information only on official, secure websites.
Typical fiducial tracking. (a) Projection image in which the ROIs were highlighted. (b) Intensity results of pattern matching in the dash rectangle region of (a). (c) R2 results of pattern matching in the dash rectangle region of (a). (d) Qualified features after the primary search.
