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三维草图交点识别的概率方法
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摘要
三维草图语义描述是三维草图理解研究的基本问题之一,其中线型标注是三维草图语义描述的基本方法,三维草图交点识别又是三维草图线型标注中必不可少的工作,由于草图随意性和歧义性对草图识别造成的挑战,现有三维草图交点识别工作都不能为三维草图线型标注提供很好的支持。
     本论文工作以积木世界为背景,提出一种识别三维草图交点的概率方法,该方法运用贝叶斯网表达和处理三维草图的随意性和歧义性,从草图中选取17个特征作为贝叶斯网的基元,不用分割笔划或对草图进行规整,最大限度地保留用户绘制的原始信息,避免错误的识别,为三维草图线型标注提供强有力的支持。
Semantics representation of 3D-sketch is fundamental to 3D-sketch understand-ing.3D-sketch junction recognition is an required part of line labeling, which is an es-sential approach to semantics representation of 3D-sketch. Whereas,the freedoms and ambiguities inherent in hand-drawn sketches present main challenge to sketch recog-nition research. Existing research in 3D-sketch junction recognition don't support line labeling well.
     In this paper we propose a new probabilistic method to 3D-sketch junction recog-nition in the block world,which express and handle the freedoms and ambiguities with Bayesian network.17 features have been selected from 3D-sketch and as the bottom nodes of the bayesian network. It could reserve raw information in the pictures drawn by users as much as possible,without dividing stroke or standardizing the sketch. avoid-ing error recognition and offering strong support for line labeling in 3D-sketch.
引文
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