background change

基本解释

Fistly, the effect of background change is resolved by making use of gray projection for motion estimation and compensation.
首先采用灰度投影匹配进行全局运动估计和补偿，用以消除背景变化的影响；
Experiments show that they are practical methods that can adaptive to background change in indoor environment and can effectively detect fingertip.
实验表明在本系统在各种室内复杂背景条件下能有效的适应背景变化，并能较准确的检测到运动指尖。
One's thinking mode may be renewed as the content of one's practice and his cultural background change.
它依据人们的实践活动内容和知识文化背景的改变而更新。

Against this background, constitutional change had the estimable advantage of appearing radical but costing little.
ECONOMIST: New Labour’s gurus: Redesigning Britain’s constitution The
His biggest innovation was to change the background colour.
ECONOMIST: Roman Opalka