改变重要性函数阈值的大小，可以很方便的得到不同粒度的视频摘要。
The scalable video summarization to fine level of detail can be achieved by changing the threshold of important function.
介绍了作为粒子滤波理论基础的递推贝叶斯估计的基本概念，说明了重要性函数对于粒子滤波器的设计是至关重要的。
The principle of Recursive Bayesian estimation was introduced which was the basis of Particle filter, and the significance of importance function to the design of particle filter was illustrated.
在这种情况下，就凸显了setup和draw这两个函数的重要性。
Two of the important functions in this context are setup and draw.
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