Table 1.

Statistics of the measurement errors of a flat board.

Statistics	Monochromatic Fringes	WRGB Fringes	Results of the Method in Reference [18]	Results of the Method in This Research
Max error	0.105 mm	0.258 mm	0.142 mm	0.110 mm
Std. dev.	0.025 mm	0.092 mm	0.036 mm	0.028 mm