摘要
提出一种进行光学相减和学学微分的新方法,对离焦象与准确象的差即为物体图象的二阶微分做了证明.
A novel method for making optical-subtraction and optical-differention is described.It is preved that the difference between defocused images and preeisect images is a second order differention of the image.The experimental results are well Coincident with the theoretical analysis.
出处
《陕西师大学报（自然科学版）》
CSCD
1992年第3期23-26,共4页
Journal of Shaanxi Normal University(Natural Science Edition)
关键词
全息图
光学相减
光学微分
Fourier-Fresnelhologram
optical-subtraction
optical-differcntion
