A Multifrequency Heterodyne Phase Error Compensation Method for 3D Reconstruction

Table 1

Error analysis before and after phase compensation during phase unwrapping.

Phase unwrapping	Phase12	Phase23	Phase1	Phase2	Phase3
Standard deviation before phase compensation	0.00372	0.00387	0.0630	0.0591	0.0654
Standard deviation after phase compensation	0.00237	0.00253	/	/	/