Digital holographic measurement of rod-shaped particle size from inline holograms using a single-pixel of Wigner-Ville distribution (WVD) coefficients is proposed. The proposed sizing method detects only the spatial frequency coordinate of the single WVD output coefficient with a minimum amplitude to measure the particle size. The proposed method has advantages over conventional numerical reconstructions in that iterative and time-consuming particle depth searches are obviated. Besides its faster response, its sizing accuracy is higher than the angular spectrum method and the previous WVD-based method because it is free from errors in depth-search. The proposed method is experimentally verified by using microtube objects with different diameters.

提出了使用单像素Wigner-Ville分布（WVD）系数从在线全息图对棒状颗粒大小进行数字全息测量的方法。提出的上浆方法仅以最小幅度检测单个WVD输出系数的空间频率坐标，以测量粒径。所提出的方法具有优于常规数值重建的优点，因为避免了迭代和费时的粒子深度搜索。除了响应速度更快外，它的尺寸调整精度还比角谱法和以前的基于WVD的方法更高，因为它没有深度搜索中的错误。通过使用不同直径的微管物体，对所提方法进行了实验验证。