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A Survey on Partial Retrieval of 3d shapes

Journal of Computer Science & Technology 2013年第5期28卷 836-851页

作者：刘贞报布树辉周昆高曙明韩军伟吴俊 School of Aeronautics Northwestern Polytechnical University College of Computer Science and Technology Zhejiang University School of Automation Northwestern Polytechnical University School of Electronics and Information Northwestern Polytechnical University

Content-based shape retrieval techniques can facilitate 3d model resource reuse, 3d model modeling, object recognition, and 3d content classification. Recently more and more researchers have attempted to solve the problems of partial retrieval in the domain of computer graphics, vision, CAd, and multimedia. Unfortunately, in the literature, there is little comprehensive discussion on the state-of-the-art methods of partial shape retrieval. In this article we focus on reviewing the partial shape retrieval methods over the last decade, and help novices to grasp latest developments in this field. We first give the definition of partial retrieval and discuss its desirable capabilities. Secondly, we classify the existing methods on partial shape retrieval into three classes by several criteria, describe the main ideas and techniques for each class, and detailedly compare their advantages and limits. We also present several relevant 3d datasets and corresponding evaluation metrics, which are necessary for evaluating partial retrieval performance. Finally, we discuss possible research directions to address partial shape retrieval.

关键词： 3d shape partial retrieval survey classification evaluation

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A deep Learning Approach to Mesh Segmentation

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Computer Modeling in Engineering & Sciences 2023年第5期135卷 1745-1763页

作者： Abubakar Sulaiman Gezawa Qicong Wang Haruna Chiroma Yunqi Lei department of Computer Science School of InformaticsXiamen UniversityXiamen361005China Shenzen Research Institute Xiamen UniversityShenzen518000China College of Computer Science and Engineering University of Hafr Al BatinHafr Albatin39524Saudi Arabia

In the shape analysis community,decomposing a 3d shape intomeaningful parts has become a topic of interest.3d model segmentation is largely used in tasks such as shape deformation,shape partial matching,skeleton extraction,shape correspondence,shape annotation and texture *** approaches have attempted to provide better segmentation solutions;however,the majority of the previous techniques used handcrafted features,which are usually focused on a particular attribute of 3dobjects and so are difficult to *** this paper,we propose a three-stage approach for using Multi-view recurrent neural network to automatically segment a 3d shape into visually meaningful *** first stage involves normalizing and scaling a 3d model to fit within the unit sphere and rendering the object into different *** viewpoints,on the other hand,might not have been associated,and a 3d region could correlate into totally distinct outcomes depending on the *** address this,we ran each view through(shared weights)CNN and Bolster block in order to create a probability boundary *** Bolster block simulates the area relationships between different views,which helps to improve and refine the *** stage two,the feature maps generated in the previous step are correlated using a Recurrent Neural network to obtain compatible fine detail responses for each ***,a layer that is fully connected is used to return coherent edges,which are then back project to 3d objects to produce the final *** on the Princeton Segmentation Benchmark dataset show that our proposed method is effective for mesh segmentation tasks.

关键词： deep learning mesh segmentation 3d shape shape features

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digital Construction——Construction Research in Virtual Space

Digital Construction——Construction Research in Virtual Spa...

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2008 IEEE 9th International Conference on Computer-Aided Industrial design & Conceptual design

作者： Meng Zhang Art School Huangshi Institute of Technology

＜正＞digital construction which based on the traditional construction utilizes the computers’ advantage in virtual space construction to lead the expansion of imagination space and three-dimensional shaping to express construction *** article compared the traditional construction with digital construction, introduced six basic methods of computer virtual shaping and how to use three-dimensional virtual shaping software to process shaping *** article points out the widespread applications of digital construction in real life,with updates of three- dimensional computer technology,digital construction will have more broad development prospects.

关键词： digital Construction Virtual Space 3d shape Computer Application

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