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三维可变形物体的特征点层次提取 被引量:2
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作者 潘翔 章国栋 陈启华 《计算机科学》 CSCD 北大核心 2014年第4期292-296,共5页
针对不同姿态下的三维可变形物体特征点一致性问题,提出了一种基于样例学习的特征点层次提取方法。该方法首先提取出三维模型的外部特征点;其次,根据外部特征点在不同姿态下所具有的局部特征相似性,采用热核信号和支持向量机识别出外部... 针对不同姿态下的三维可变形物体特征点一致性问题,提出了一种基于样例学习的特征点层次提取方法。该方法首先提取出三维模型的外部特征点;其次,根据外部特征点在不同姿态下所具有的局部特征相似性,采用热核信号和支持向量机识别出外部特征点的语义标签;最后,根据语义标签和测地距离,层次地提取出三维模型的其它语义特征点。实验结果表明,该方法能很好地得到三维可变形物体的各种语义上的有效特征点。 展开更多
关键词 三维模型特征点 层次提取 语义标签 支持向量机 热核信号
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A method of shadow puppet figure modeling and animation 被引量:1
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作者 Xiao-fang HUANG Shou-qian SUN +3 位作者 Ke-jun ZHANG Tian-ning XU Jian-feng WU Bin ZHU 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2015年第5期367-379,共13页
To promote the development of the intangible cultural heritage of the world, shadow play, many studies have focused on shadow puppet modeling and interaction. Most of the shadow puppet figures are still imaginary,spre... To promote the development of the intangible cultural heritage of the world, shadow play, many studies have focused on shadow puppet modeling and interaction. Most of the shadow puppet figures are still imaginary,spread by ancients, or carved and painted by shadow puppet artists, without consideration of real dimensions or the appearance of human bodies. This study proposes an algorithm to transform 3D human models to 2D puppet figures for shadow puppets, including automatic location of feature points, automatic segmentation of 3D models, automatic extraction of 2D contours, automatic clothes matching, and animation. Experiment proves that more realistic and attractive figures and animations of the shadow puppet can be generated in real time with this algorithm. 展开更多
关键词 Shadow play Shadow puppet figure 3D human body Data processing 2D modeling
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