Comparative Analysis of Color Matching System for Teeth Recognition Using Color Moment

Figures & data

Figure 1 System design of color matching for dental recognition. (1) Collecting data. (2) Extracting feature. (3) Learning and testing process.

Figure 2 Sixteen types of dental images from the shade guide reference. The VITAPAN classical A1–D4 shade guide (Internationally established dental shade guide commercial product). The arrangement of the shades in the VITAPAN classical family of shades is as follows: A1–A4 (reddish-brownish hue). B1–B4 (reddish-yellowish hue). C1–C4 (greyish hue). D2–D4 (reddish-grey hue). Chroma is designated with numerical values 1, 2, 3, and 4.

Figure 3 Region area from dental image partition for each type. A1–A4, B1–B4, C1–C4, D1–D4 (the VITAPAN classical family shade guide; Internationally established dental shade guide commercial product).

Table 1 Hypothesis Null Calculation of RGB Using Color Model Parameters

Table 2 The Experimental Result Data

Algorithm	Percentage of Learning Accuracy	Percentage of Testing Accuracy	Computation Time (minutes: seconds)
RGB Color Model
DT	90.00%	85.63%	1:04
KNN	97.50%	92.50%	0:02
NN	97.92%	76.88%	34:44
HSV Color Model
DT	84.38%	76.88%	0:58
KNN	12.92%	12.50%	0:03
NN	96.46%	78.75%	33:26
Lab Color Model
DT	80.21%	68.75%	1:02
KNN	92.08%	77.50%	0:04
NN	94.58%	80.00%	34:04