激光与光电子学进展, 2019, 56 (16): 161007, 网络出版: 2019-08-05
区域判别路径相关解包裹算法 下载: 1019次
Path Correlation Phase Unwrapping Algorithm by Regional Judgement
图像处理 相位解包裹算法 结构光法 条纹投影 路径相关 Matlab imaging processing phase unwrapping algorithm structured light method fringe projection path correction Matlab
摘要
在条纹投影三维重构系统中,需要对得到的初始相位进行解包裹才能得到真实的三维图像。路径相关算法是一类十分重要的相位解包裹算法,可以精确无误地还原物体表面的形状和结构,但现有的路径相关算法受相位图噪声的限制,容易在图像质量差或者梯度大处出现奇点,无法找到相应的还原路径。为此,提出一种能够解出精确相位,并且可以忽略噪声点和补偿断层的新型算法。通过理论分析给出实物图和包裹相位图,然后应用本方法还原出物体的真实相位信息,最后用相位再包裹法作为算法精确度的评估标准,验证本方法的可行性和优越性。
Abstract
In the three-dimensional (3D) reconstruction system for fringe projection, we need to unwrap the original phase to obtain the real 3D image. A path correlation algorithm is a type of useful phase unwrapping algorithm that can accurately rebuild the shape and texture of the target object. However, the path correlation algorithm is limited by the phase noise. Resultantly, we will not find the right path to unwrap the phase when encountering a singular point in the region with low image quality. Therefore, we propose an algorithm that can retrieve exact phase, ignore noise, and compensate fault. Based on a theoretical study, we can provide the actual image of the object and the wrapped phase image, and reconstruct the actual phase information based on the proposed algorithm. To verify the practicability and superiority of this algorithm, the phase rewrapping algorithm is adopted as the performance metric of the algorithm.
陈人镜, 许文强, 谭烨宏, 郭宇飞, 丁传厚, 马冬林. 区域判别路径相关解包裹算法[J]. 激光与光电子学进展, 2019, 56(16): 161007. Renjing Chen, Wenqiang Xu, Yehong Tan, Yufei Guo, Chuanhou Ding, Donglin Ma. Path Correlation Phase Unwrapping Algorithm by Regional Judgement[J]. Laser & Optoelectronics Progress, 2019, 56(16): 161007.