The thesis explains from background of subject, plan demonstration, system hardware and software and research on control algorithm respectively.

论文分别从课题背景、方案论证、系统软硬件设计、控制算法研究展开说明。

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This article strives to answer the question "what is data mining?" by giving you a background on the subject and introducing the goals of the field.

本文通过向您介绍数据挖掘这个主题的背景以及这个领域的目标力求回答“什么是数据挖掘”这个问题。

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Mr Epstein understands his subject pretty well, knows the background and has plenty to say that is of interest—but it could all have been better said in a quarter of the space.

爱泼斯坦先生非常理解他所写的主题，而且了解其背景，并且有很多引人感兴趣的话题——但是如果用四分之一的篇幅来写会更好。

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When a moving subject is cut out of a number of images and combined with a different still shot that forms the background, the size of the subject can be changed to suit the background image.

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With the flash on, the camera automatically merges an image of the subject illuminated with the flash in the foreground with a separate image of the background nightscape, to produce a single, clear night photo.

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Persistent tap-to-track also adjusts the camera exposure depending on any movement, helping avoid under- or over-exposure of the image's subject or background.

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