Xisheng Xiao, Qinghua Yu, Zhentao Zhu, Kai Hu, Guilin Chen. Encoding method of CGH for highly accurate optical measurement based on non-maxima suppression[J]. Chinese Optics Letters, 2017, 15(11): 111201
- Chinese Optics Letters
- Vol. 15, Issue 11, 111201 (2017)
Fig. 1. CGH-encoding process. (a) Generating binary fringes using phase contour interferograms. (b) Encoding the fringes into polygons.
Fig. 2. Deviations introduced by encoding.
Fig. 3. Digitalization and non-maxima suppression processes.
Fig. 4. Deviation induced by digitalizing the curve.
Fig. 5. Deviation induced by non-maxima suppression.
Fig. 6. Result of non-maxima suppression.
Fig. 7. Statistics of the suppression errors.
Fig. 8. Used self-aligned CGH to verify the encoding accuracy.
Fig. 9. Layout of the CGH.
Fig. 10. Substrate error.
Fig. 11. Testing the reflecting wave-front generated by the CGH.
Fig. 12. Experimental result.
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Table 1. Error Estimation
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