In case that can't get the closed edge of object, it defines not only the description method of object, but also the matching policy of this type of image.

在不能得到目标封闭轮廓的情况下，本文规定了不封闭轮廓的特征描述方法；拟订了针对这类图像的匹配策略。

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Note that the path must be a closed loop - that is, the first point of the first Edge object in the path must have the same location as the last point of the last Edge object.

注意，路径必须是一个闭环—也就是说，路径中第一个Edge对象的第一个点必须与最后一个Edge对象的最后一个点的位置相同。

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Based on feature edge identification, a practical simplification method is proposed for closed and non-smooth polyhedral model.

提出了基于特征边识别的实用的非光滑封闭多面体模型的简化方法。

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Earlier this year in Liverpool Council ended the city's mobile library service, closed three libraries in Edge Hill, Great Homer Street and Woolton, and closed and cut opening hours at the remaining libraries.

BBC: Sefton libraries closure threat

The road to the huts on Monmouth Beach under the crumbling cliff edge has been closed off indefinitely after a large fall on Tuesday evening.

BBC: Landslip at Lyme Regis threatens beach chalets

Once Sylvie was in the bath, she lay with her eyes closed, head back against the edge of the tub, while Marjorie gently soaped her body, lifting her arms one by one, cleaning between her small breasts and her legs.

NEWYORKER: The Visitor