Experimental result shows that the proposed algorithm can be used to extract backgrounds effectively and quickly when the scene changes, and it has better effect.
实验结果表明，该算法能快速有效地对背景进行更新，提取的背景图像效果较好。
The trick is to use their love of novelty to work out what is happening inside their brains: when shown the same things repeatedly, babies' eyes wander; when the scene changes, their gaze returns.
研究婴儿大脑活动的主要方法是通过婴儿偏好新异刺激的方法：当重复呈现相同刺激时婴儿的注意开始漂移，而当新的刺激呈现时，注视点重新回到刺激物上。
When she opened the door she was greeted by a scene of utter confusion.
她开开门，一片混乱不堪的景象呈现在她的眼前。
The scene which Dr. Craven beheld when he entered his patient's room was indeed rather astonishing to him.
克雷文医生走进病房时所看到的情景，的确使他感到相当吃惊。
He could react jealously when and if another child comes on the scene.
如果有别的孩子加入其中，他可能会表现得相当嫉妒。
My stepfather came into the scene when I was four.
在我四岁的时候，我的继父就出现了。
But keep in mind that she was doing this when abstract art dominated the art scene.
但请记住，她是在抽象艺术主导艺术领域的时期做这件事的。
Several witnesses deposed concerning Potter's guilty behavior when brought to the scene of the murder.
几个证人作证说，当波特被带到谋杀现场时，他表现出了畏罪行为。
We need relentless focus, just like when paramedics arrive on a scene and use the concept of "triage" to ensure the most urgent cases get treated first.
我们需要坚持不懈的关注，就像当救护人员到达现场，使用“伤员鉴别分类”以确保最紧急的病例得到优先治疗一样。
When reading something, ask children to imagine the scene of the story and describe it.
在阅读的时候，让孩子们想象故事的场景并加以描述。
Now imagine the scene some time later when she is discovered.
不妨设想一下，一段时候后那名女子被揪出来的场景。
In the opening scene, when a velociraptor is let loose, an unnamed employee falls down and ends up getting eaten.
在影片的开头，当速龙窜出，一位不知名的员工落入虎口，然后被吃掉。
Signal when characters enter or exit the scene and describe any important action with detailed passages.
要写明各个角色是何时进入或离开场景的，并且要用多段详细的短文将重要的故事情节描述清楚。
He was not at the scene when the murder occurred.
谋杀发生时他不在现场。
When you're dissociated you're imagining seeing yourself in the scene (i.e. third-person perspective).
当你解除关联时，你要想象看到自己身在场景之中(也就是第三人称视角)。
Describe action happening in the scene. Signal when characters enter or exit the scene and describe any important action with detailed passages. Italicize and left-align these descriptions.
描写场景中所发生的故事情节。要写明各个角色是何时进入或离开场景的，并且要用多段详细的短文将重要的故事情节描述清楚。这些描述内容要用斜体字与左对齐排列样式。
When Katherine appeared on the scene, it was pretty much a given that she orchestrated the fight and got the outcome she was hoping for.
当Katherine出现的那一刻，我们应该想到，这是她精心策划的一场争执，并且得到了她所希望的结果。
The room was disordered when they arrived at the scene of the burglary.
当他们到达夜盗现场时房间被弄得乱七八糟。
Jackson made his debut on the music scene when he was still a child, performing with his brothers as the group the Jackson Five.
在还是孩子时，杰克逊就开始了他的音乐首演，与他的兄弟们组成杰克逊五兄弟乐团进行表演。
When HTML forms came on the scene, they copied the design of block-mode terminals, but without the tight navigation and without replacing it with a proper GUI equivalent.
当HTML表单登上历史舞台的时候，它们模仿了块模式终端的设计，但是却没有提供紧凑的导航机制，也没有用适当的 GUI来代替它。
When it first burst onto the the scene in 1995, the virtual bookshop let readers order pretty much any book they wanted, without getting out of the house.
其首次爆发是在1995年，这家虚拟书店让它的读者能够订购到近乎所有的书，并且完全不用离开屋子。
He says the scene resembles California's Silicon Valley 15 years ago, when the first wave of entrepreneurs paved the way for the new wave of dot-com era entrepreneurs.
他说这场面类似于15年前加州的硅谷，当时第一波的企业家给新的一波网络泡沫时代的企业家铺了路。
For these people, software craftsmanship is a return to the roots of Agile, when Extreme Programming first came on the scene as a refreshingly developer-focused approach to software development.
对于这些人，软件工艺是对敏捷本质的回归，极限编程最初出现在世人面前时，也是强调以开发人员为核心的全新软件开发方法。
In this case, my dialogue showed a character -- the mother -- saying one thing, when we know from an earlier section of the scene that she believes another thing entirely.
对话大概内容是这样，某人物——母亲——肯定某事，但从前一章节我们可以明确知道，她实际相信的是完全相反的东西。
When a given scene is reached, the action determines whether the score is set to this value or the value is added to the score.
当到达给定的场景时，动作决定是将分数设置为这个值，还是将值加进当前分数中。
When a given scene is reached, the action determines whether the score is set to this value or the value is added to the score.
当到达给定的场景时，动作决定是将分数设置为这个值，还是将值加进当前分数中。
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