A basic definition of animation is the illusion of motion, or change, created by changing an image over time.

动画的一个基本定义是通过在一定时间内改变或移动图像而产生的幻觉。

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The body image they have formed is such that they have to produce a preparatory rearrangement of their throat, chest, and abdomen before they can speak or initiate any motion whatsoever.

由于他们自己所形成的身体形象的问题，他们在能讲话或开始任何动作之前，都不得不事先对喉咙，胸口和腹部做预备安排。

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Target tracking based on parameterized technique covers two aspects, that is, tracking methods based on motion parameter or based on image information.

基于参数化技术的目标跟踪方法包括两方面：基于目标运动参数的跟踪方法和基于目标图像信息的跟踪方法。

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"I'll have an idea -- an image of a horse race or a polo match -- and sketch it until I get something that has motion and movement, " he said.

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