Research Article

Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift

Table 3

Evaluation and analysis of point cloud by the traditional phase-shifted method for Figure 12(a).

DirectionMaximal value (mm)Average error (mm)Standard deviation (mm)

Negative directionāˆ’3.8620āˆ’0.72310.7404
Absolute direction3.86200.01590.1649
Forward direction3.33780.00910.1129