image subtraction

常见例句

Two sets of linear charge coupled device (CCD) cameras were used with the image subtraction technique to determine the heights and time above mentioned.
对高度和时间的检测，采用了线阵电荷耦合器件（CCD）为图像传感器进行摄像并采用图像减影的方法识别抛射物体。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
The basic principle and some useful methods of real-time image subtraction are described in this paper.
本文论述一种实时图像相减的原理和方法。