摘要
针对强相位跳变,特别是噪声存在时的相位去包裹问题,介绍了一种基于傅里叶变换的确定性相位去包裹算法,并从数学上对该算法进行了详细推导。理论推导和具体的应用实例表明,该算法突破了现有算法的一些局限性,是一种与路径无关、去噪的快速、高精度相位去包裹方法。
<Abstrcat>This paper introduces a Fourier-transform-based algorithm for phase-unwrapping from experimental maps of wrapped phase in the presence of high phase gradient,especially noise.Mathematic deduction of the algorithm is given concretely.Examples of phase unwrapping using the introduced algorithm are presented to illustrate the performance of the algorithm,the theoretic deduction and the results confirm the algorithm to be a path-independent,immune to noise,fast,and robust.
出处
《光学仪器》
2005年第3期33-36,共4页
Optical Instruments
基金
国家自然科学基金资助项目(60378039)
浙江省科技计划资助项目(021101730)
关键词
相位去包裹
傅里叶变换
图像处理
phase-unwrapping
Fourier transform
image processing
