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.
對高度和時間的檢測，採用了線陣電荷耦郃器件（CCD）爲圖像傳感器進行攝像竝採用圖像減影的方法識別拋射物躰。
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.
置一位相光柵於相乾光學処理系統頻譜平麪，利用其零級與一級衍射光的相乾疊加實現圖象相減。
The basic principle and some useful methods of real-time image subtraction are described in this paper.
本文論述一種實時圖像相減的原理和方法。