One of the most effective and common methods to achieve this effect are the panoramic Windows, which make the boundary of the property implicit.

实现这一效果最有效、最常用的方法之一就是落地窗，它使地形的边界隐含其中。

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But grains and grain boundary must be identified automatically by computer in order to achieve computer automatic measurement.

但为了实现计算机的自动测量，需要计算机能够自动的识别晶粒以及晶粒的边界。

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To achieve such an organization, it needs not only detect the boundary of shots and episodes, but also extract the key frames of shots and select the representative shots and frames for episodes.

为了得到这样一种组织，不仅要检测出镜头和情节这些视频单元的边界，还要提取镜头关键帧和选择情节有代表性的镜头和代表帧。

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