光学学报, 2017, 37 (9): 0910001, 网络出版: 2018-09-07
基于散斑相位条纹方向的自适应正弦/余弦滤波 
下载： 1153次
An Adaptive Sine/Cosine Filtering Algorithm Based on Speckle Phase Fringe Orientation
图 & 表
图 1. (a)含有噪声的原始包裹相位图;(b)条纹方向图
Fig. 1. (a) Original wrapped phase pattern with noise; (b) fringe orientation map
图 2. (a)无噪声sin条纹图;(b)不同的滤波窗口图
Fig. 2. (a) Noise-free sin fringe pattern; (b) maps of different filtering windows
图 3. 模拟相位条纹图及其处理结果。(a)无噪声相位条纹图;(b)含高斯噪声的模拟条纹图;分别采用窗口(c) 3×3, (d) 3×5, (e) 3×7, (f) 5×3, (g) 7×3和(h)本文方法对图3(b)进行5次滤波后的结果
Fig. 3. Simulated phase fringe patterns and experimental results. (a) Noise-free phase fringe pattern; (b) simulated fringe pattern with Gaussian noise; results of Fig. 3(b) filtered for 5 times by using window sizes of (c) 3×3,(d) 3×5, (e) 3×7, (f) 5×3, (g) 7×3 and (h) the proposed method, respectively
图 4. 滤波后相位值与其真值的差值及相邻两次滤波后差值的标准方差随滤波次数的变化
Fig. 4. Standard deviation distributions of the difference between fringe patterns from two adjacent filterings and that between filtered fringe patterns and noise-free ones, respectively
图 5. 散斑相位条纹图及处理结果。(a)相位条纹图;分别采用(b) 3×3, (c) 3×5, (d) 5×3, (e) 7×3窗口和(f)本文方法对图5(a)进行10次滤波后的结果
Fig. 5. Speckle phase fringe patterns and experimental results. (a) Phase fringe pattern; results of Fig. 5(a) filtered for 10 times by using window sizes of (b) 3×3; (c) 3×5; (d) 5×3; (e) 7×3 and (f) the proposed method, respectively
表 1滤波窗口集
Table1. Set of filtering windows
|
蒋汉阳, 戴美玲, 苏志龙, 杨福俊, 何小元. 基于散斑相位条纹方向的自适应正弦/余弦滤波[J]. 光学学报, 2017, 37(9): 0910001. Hanyang Jiang, Meiling Dai, Zhilong Su, Fujun Yang, Xiaoyuan He. An Adaptive Sine/Cosine Filtering Algorithm Based on Speckle Phase Fringe Orientation[J]. Acta Optica Sinica, 2017, 37(9): 0910001.
PDF全文
