Table 2 Measured average step height of Experiment 4 at 60, 50, 30 (unit: mm)
From: Three-dimensional measurement of object surface by using ellipse binary defocusing projection
Number | 1 | 2 | 3 |
|---|---|---|---|
Ideal height | 60 | 50 | 30 |
Measured height | 60.078 | 49.949 | 30.031 |
Absolute error | 0.078 | 0.051 | 0.031 |
RMS error | 0.025 | 0.018 | 0.011 |