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基于格式塔的建筑物图画抽象 被引量:1
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作者 南亮亮 andrei sharf +4 位作者 谢科 Tien-Tsin Wong Oliver Deussen Daniel Cohen-Or 陈宝权 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2012年第2期152-154,共3页
格式塔(Gestalt)理论总结了人类认知规则、模式和语义的若干规律,已有大量的研究针对独立的格式塔规则建立计算模型,但建立多个格式塔规则相互作用的耦合模型仍然是一个挑战.基于格式塔理论的若干主要规则建立了一个针对多个格式塔规则... 格式塔(Gestalt)理论总结了人类认知规则、模式和语义的若干规律,已有大量的研究针对独立的格式塔规则建立计算模型,但建立多个格式塔规则相互作用的耦合模型仍然是一个挑战.基于格式塔理论的若干主要规则建立了一个针对多个格式塔规则耦合的计算模型,并将该模型用于建筑物线画图的抽象;通过减少图画中重复结构元素的数目,或者将复杂的结构用简单结构替换的方式对建筑物结构进行概括和抽象.实验结果表明,该方法可以应用于风格各异的建筑物线画图,并可以扩展到其他类型的图画以及三维模型. 展开更多
关键词 简化 抽象 格式塔
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非规则三维建筑模型的保结构变形 被引量:1
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作者 林金杰 Daniel Cohen-Or +4 位作者 张皓 梁成 andrei sharf Oliver Deussen 陈宝权 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2012年第2期146-148,共3页
为了快速生成大量与输入风格一致的三维建筑模型,提出一种针对非规则三维建筑模型的保结构交互式变形技术.该技术以一般的三维网格模型作为输入,经过若干预处理操作形成带标记的包围盒层次结构,以此作为变形操作的分析基础.变形算法的... 为了快速生成大量与输入风格一致的三维建筑模型,提出一种针对非规则三维建筑模型的保结构交互式变形技术.该技术以一般的三维网格模型作为输入,经过若干预处理操作形成带标记的包围盒层次结构,以此作为变形操作的分析基础.变形算法的核心思想是将原始的复杂结构分解为一组一维的结构序列,然后逐条对一维结构序列施加变形操作.在对一维结构序列的变形过程中尽可能以可重复的元素来填充变形空间,实现对输入结构特点的保持.实验结果表明,该技术可用于各种不同风格的建筑模型. 展开更多
关键词 模型变形 不规则三维建筑
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Preface
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作者 Shi-Min Hu andrei sharf Fang-Lue Zhang 《Journal of Computer Science & Technology》 SCIE EI CSCD 2024年第4期753-754,共2页
The Computational Visual Media(CVM)conference series serves as a prominent international platform for the exchange of innovative research ideas and significant computational methodologies that support or are applied t... The Computational Visual Media(CVM)conference series serves as a prominent international platform for the exchange of innovative research ideas and significant computational methodologies that support or are applied to visual media.The conference's primary objective is to encourage cross-disciplinary collaboration,bringing together elements of computer graphics,computer vision,machine learning,image and video processing,visualization,and geometric computing.Key topics of interest at CVM encompass the classification,composition,retrieval,synthesis,cognition,and understanding of visual media,including images,video,and 3D geometry. 展开更多
关键词 COMPUTER GRAPHICS VISUAL
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Shell stand:Stable thin shell models for 3D fabrication
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作者 Yu Xing Xiaoxuan Wang +3 位作者 Lin Lu andrei sharf Daniel Cohen-Or Changhe Tu 《Computational Visual Media》 SCIE EI 2024年第4期643-657,共15页
A thin shell model refers to a surface or structure,where the object’s thickness is considered negligible.In the context of 3D printing,thin shell models are characterized by having lightweight,hollow structures,and ... A thin shell model refers to a surface or structure,where the object’s thickness is considered negligible.In the context of 3D printing,thin shell models are characterized by having lightweight,hollow structures,and reduced material usage.Their versatility and visual appeal make them popular in various fields,such as cloth simulation,character skinning,and for thin-walled structures like leaves,paper,or metal sheets.Nevertheless,optimization of thin shell models without external support remains a challenge due to their minimal interior operational space.For the same reasons,hollowing methods are also unsuitable for this task.In fact,thin shell modulation methods are required to preserve the visual appearance of a two-sided surface which further constrain the problem space.In this paper,we introduce a new visual disparity metric tailored for shell models,integrating local details and global shape attributes in terms of visual perception.Our method modulates thin shell models using global deformations and local thickening while accounting for visual saliency,stability,and structural integrity.Thereby,thin shell models such as bas-reliefs,hollow shapes,and cloth can be stabilized to stand in arbitrary orientations,making them ideal for 3D printing. 展开更多
关键词 surface models thin shell models optimization balance stability 3D fabrication
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Message from Guest Editors of the CVM 2024 Special Issue
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作者 andrei sharf Fang-Lue Zhang 《Computational Visual Media》 SCIE EI 2024年第4期611-612,共2页
The Computational Visual Media(CVM)conference series is intended to provide a prominent international forum for exchanging innovative research ideas and significant computational methodologies that either underpin or ... The Computational Visual Media(CVM)conference series is intended to provide a prominent international forum for exchanging innovative research ideas and significant computational methodologies that either underpin or apply visual media. 展开更多
关键词 CVM Guest Media
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