摘要
为了提高计算哈特曼-夏克波前传感器的质心探测精度,设计了基于数学形态学的滤波器。此滤波器基于四个有向结构元素形态滤波,设计的每个元素充分考虑了哈特曼-夏克波前传感器探测人眼波前像差时的光斑点大致形态。这个滤波器优化了阈值,经此滤波器处理后,可以保持传感器探测到每个光斑点的形态特征,保留了更多的光斑信息。通过在视网膜细胞显微镜项目的应用其速度和精度均能满足要求。
A morphological filter have been designed in order to calculate the centroid spots of Hartmann-Shack patterns.This filter is based on directional structuring elements.Each element takes into account the general morphology of the spots of the Hartmann-Shack pattern.The filter can optimize the threshold,and it can keep the morphology characteristic of each spot to retain more spot′s information.Through the application of the retinal cell microscrope project,its speed and accuracy can meet the requirements.
出处
《光电子技术》
CAS
2008年第4期227-231,共5页
Optoelectronic Technology
基金
国家高技术研究发展计划(863计划)(2006AA020804)
关键词
哈特曼-夏克传感器
质心探测
数学形态学
滤波器
Hartmann-Shack wavefront sensor
centroid test
mathematical morphology
filter
