Figure 6.

Experimental subjective evaluation was conducted using a set of 20 comparisons just as the three visual objects (a, b, c) displayed here, evaluated by 12 participants. For each of the rows, scanner 'x' and scanner 'y' were presented in random sequence to participants who had to select the preferred match ('x' or 'y') as a forced choice. In this illustration, 'x' is QTSculptor, 'y' is ATOS-II for all three visual objects (a,b,c). a: Bone surface structure featuring finely granular roughness, and sharp edges (bottom of foramen), that blend into the surface (lateral margins of the foramen). b: Bone surface structure featuring finely granular roughness, a black felt pen dot, several small surface indents, and a suture. c: Bone surface containing a more extensive suture containing countersink drillings. Bar is 5 mm.