摘要
在相息图的理论基础上 ,采用差分方法计算物点和相息图样点之间的距离 r。重点讨论了差分计算方法 ,在保留重构图像细节的基础上 ,该方法的运算速度比平方根准确计算的方法提高1 0倍以上。对平方根准确计算 r及差分方法计算 r得到相同大小的相息图所需时间及实验结果进行了比较。
Based on the kinoform theory, the range r between the object point and sampling point of kinoform is calculated by use of difference method. The paper emphatically discusses the difference calculation method. Based on reservation of the reconstructed image details, the operational speed of the method is faster than the accurate calculation method of square root for more than 10 times. A comparison for the time required in obtaining kinoform with same sizes by use of square root accurate calculation r and difference method calculation r and the experimental results is carried out.
出处
《光电工程》
CAS
CSCD
北大核心
2001年第4期30-33,共4页
Opto-Electronic Engineering
基金
浙江省自然科学基金资助项目 ( 6 990 2 4)
关键词
相息图
计算机全息图
差分法
Kinoform
Computer-generated holograms
Difference method
