In this paper we first propose a method to describe the hierarchy structure model of video with the MPEG-7 segment description tools, and present the DDL description.
提出了一种利用MPEG - 7段描述工具对视频层次化结构模型进行描述的方法，并给出了相应的DDL描述。
This paper presents an iterative chain code tracing method with parallel hierarchy for line segment detection.
提出了一种分层并行迭代式链码跟踪直线提取方法。
If the design contains a segment that has no wire load model, the tool traverses the design hierarchy upward until it finds a wire load model.
如果包含此网线段的设计没有定义线载模型，DC查找上一层次设计的线载模型，直到找到线载模型。
If the design contains a segment that has no wire load model, the tool traverses the design hierarchy upward until it finds a wire load model.
如果包含此网线段的设计没有定义线载模型，DC查找上一层次设计的线载模型，直到找到线载模型。
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