High Power Laser and Particle Beams, Volume. 34, Issue 12, 121003(2022)
Real time phase calculation of phase shifted structured light based on one-dimensional look-up table
Figures & Tables(8)
Fig. 1. The coordinates in the first quadrant space are mapped to the coordinate axis
Fig. 3. Influence of parameter
Table 1. Calculation complexity of each algorithm
View tableView in ArticleTable 1. Calculation complexity of each algorithm
method compare multiplication division addition/subtraction round Eq(19) in Ref [ 14 ]3 7 1 5 0 Lut(8) 3 2 2 5 1 Lut(12) 2 2 1 5 1
Table 2. Comparison of phase calculation speed of each algorithm
View tableView in ArticleTable 2. Comparison of phase calculation speed of each algorithm
step Eq(2) Eq(16) in Ref [ 14 ]Lut(8) Lut(12) N=3 speed 189.92 fps 585.80 fps 619.84 fps 754.83 fps improvement − 3.08× 3.26× 3.97× N=5 speed 166.13 fps 462.63 fps 493.83 fps 588.49 fps improvement − 2.78× 2.97× 3.54× N=16 speed 50.06 fps 54.08 fps 57.32 fps 59.02 fps improvement − 1.08× 1.15× 1.18×
Table 3. Calculation time of arctangent value by each algorithm
View tableView in ArticleTable 3. Calculation time of arctangent value by each algorithm
method Eq(2) Eq(19) in Ref [ 14 ]Lut(8) Lut(12) time 17.08 ns 3.20 ns 2.75 ns 2.31 ns improvement − 5.34× 6.21× 7.39×
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Songlin Ying, Dan Hu, Kai Liu. Real time phase calculation of phase shifted structured light based on one-dimensional look-up table[J]. High Power Laser and Particle Beams, 2022, 34(12): 121003
Paper Information
Category: High Power Laser Physics and Technology
Received: May. 16, 2022
Accepted: Jun. 20, 2022
Published Online: Nov. 10, 2022
The Author Email: Hu Dan (demyd03@163.com)
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