激光与光电子学进展, 2020, 57 (2): 021503, 网络出版: 2020-01-03
基于改进单调法的阴影区相位噪声校正方法 
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Correction Method of Shadow-Area Phase Noise Based on Improved Monotone Method
图 & 表
图 3. 工件的相位展开结果(左相机)。(a)光栅条纹;(b)相位展开
Fig. 3. Phase unwrapping result of workpieces (left camera). (a) Grating stripe; (b) phase unwrapping
图 4. 第315行的绝对相位值。(a)校正前相位值;(b)校正后相位值
Fig. 4. Absolute phase values of the 315th line. (a) Phase value before correction; (b) phase value after correction
图 5. 系统搭建与数据采集。(a)结构光测量系统;(b)光栅条纹
Fig. 5. System construction and data collection. (a) Structured light measurement system; (b) grating stripe
图 6. 频率为1/64的全场连续绝对相位(左相机)。(a)校正前的绝对相位;(b)利用单调法校正后的绝对相位;(c)利用所提方法校正后的绝对相位;(d)校正前的绝对相位高度;(e)利用单调法校正后的绝对相位高度;(f)利用所提方法校正后的绝对相位高度
Fig. 6. Full-field continuous absolute phase at frequency of 1/64 (left camera). (a) Absolute phase before correction; (b) absolute phase corrected by monotonic method; (c) absolute phase corrected by proposed method; (d) absolute phaseheight before correction; (e) absolute phase height corrected by monotonic method; (f) absolute phase height corrected by proposed method
图 7. 5种工件的三维点云与三角片模型。(a)光栅投影;(b)校正前的绝对相位高度(左相机);(c)利用所提方法校正后的绝对相位高度;(d)三维点云;(e)三角面片模型
Fig. 7. Three-dimensional point cloud andtriangular plate model of five kinds of workpieces. (a) Grating projection; (b) absolute phase height before correction (left camera); (c) absolute phase height corrected by proposed method; (d) three-dimensional point cloud; (e) triangular plate model
表 15种工件三角片模型的标准偏差
Table1. Standard deviation of triangular plate model of five kinds of workpieces
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表 2圆柱体工件直径和高的拟合结果
Table2. Fitting results of diameter and height of cylindrical workpiecemm
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陶四杰, 白瑞林, 王昌龙. 基于改进单调法的阴影区相位噪声校正方法[J]. 激光与光电子学进展, 2020, 57(2): 021503. Tao Sijie, Bai Ruilin, Wang Changlong. Correction Method of Shadow-Area Phase Noise Based on Improved Monotone Method[J]. Laser & Optoelectronics Progress, 2020, 57(2): 021503.
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