Adaptive Fractional Differentiation Harris Corner Detection Algorithm for Vision Measurement of Surface Roughness

Table 2

Comparison of the measurement precision.

Measurement point	Measured height V1 (mm)	Measured height V2 (mm)	Standard height (mm)	V2 error (mm)
P1	23.281	23.398	23.412	−0.014
P2	4.368	4.224	4.201	0.023
P3	23.350	23.397	23.420	−0.023
P4	21.782	21.701	21.611	0.090
P5	9.435	9.403	9.418	−0.015
P6	16.673	16.518	16.541	−0.023
P7	8.425	8.497	8.507	−0.010
P8	6.247	6.334	6.313	0.021
P9	6.269	6.345	6.327	0.018
P10	23.359	23.429	23.446	−0.017