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CMC (Congruent Matching Cells)

NIST algorithm that divides two 3D surface topography maps into cell grids and counts cells meeting quantitative topographic-correlation, slope-agreement, and height-offset criteria; produces a score rather than a subjective opinion.

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Related terms

ACS (Algorithmic Comparison Score)Blind verificationComparison microscopeConfocal microscopyEvofinderLikelihood ratio (LR)NBTRB (NIST Ballistic Toolmark Research Database)NFI (Netherlands Forensic Institute)Oblique illuminationOSACSWGMAT

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