科研之友
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摘要
In order to decrease the quantization effect caused by quantization process of digital devices, we propose a method to reduce the quantization error for phase measuring profilometry (PMP). The proposed method is suitable for the measurement of high precision and the surface has little change in bump. Each pixel of the calculated phase can be corrected according to neighborhood pixels. The experiment result shows that the standard deviation of phase quantization error decreases 41.38% after correction. The accuracy of phase measurement is improved.
- 出版日期2014
- 单位四川大学
