Web3D家居素材库的轻量化技术研究
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摘要
随着Web3D技术的不断发展,使得人们对基于Web3D家居模型的互联网在线即时可视化服务需求激增.利用轻量化关键技术,方便快捷地解决了大规模WebVR家居模型的处理、传输、重建、实时渲染等问题.提出了基于WebVR的轻量级三维家居素材库在线可视化服务,详细介绍了该系统对家居模型轻量化的实现过程中一些关键技术,包括轻量级渐进式网格处理、细粒化处理、基于视点传输等.结果表明,新的轻量化框架能够较好地处理模型,提升了传输速度.
With the development of Web3D technology,Web service demand for 3D household models on line application surged.Taking advantage of lightweight technology and so on,the processing,transmission,rebuilding,and real-time rendering problems were solved for large scale WebVR household models.Based on WebVR,this paper put forward the online visual service of Web3D lightweight household models repository was introduced.The detailed process of the lightweight household models,and some related key technologies,including lightweight progressive meshes processing,fine-grained preprocessing,viewpoint based transforming and so on were also introduced.The results showed that lightweight technology could process the household models rapidly.
With the development of Web3D technology,Web service demand for 3D household models on line application surged.Taking advantage of lightweight technology and so on,the processing,transmission,rebuilding,and real-time rendering problems were solved for large scale WebVR household models.Based on WebVR,this paper put forward the online visual service of Web3D lightweight household models repository was introduced.The detailed process of the lightweight household models,and some related key technologies,including lightweight progressive meshes processing,fine-grained preprocessing,viewpoint based transforming and so on were also introduced.The results showed that lightweight technology could process the household models rapidly.
引文
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[2]YIN T F,HAN Y,CHEN Y,et al.Web VR-web virtual reality engine based on P2P network[J].Journal of networks,2011,6(7):990-998.
[3]HOPPE H.Progressive meshes[C]//Proceedings of the25th Conference on Computer Graphics and Interactive Techniques.New York:ACM,1996:99-108.
[4]SHIKHARE D,BHAKAR S,MUDUR S P.Compression of large 3D engineering models using automatic discovery of repeating geometric features[C]//Proceedings of the Vision Modeling and Visualization Conference.Irdia:Juhu,Mumbai,2001:233-240.
[5]CAI K,WANG W,CHEN Z,et al.Exploiting repeated patternsfor efficient compression of massive models[C]//International Conference on Virtual Reality Continuum and ITS Applications in Industry.New York:ACM,2009:145-150.
[6]WEN L X,XIE N,JIA J Y.Client-Driven Strategy of Large-Scale Scene Streaming[C]//Proceedings of International Conterence MultiMedia Modeling.Miami:Springer,2016:93-103.
[7]ENGLERT M,JUNG Y,KLOMANN M,et al.Astreaming framework for instant 3D rendering and interaction[C]//Proceedings of the 21st ACM Symposium on Virtual Reality Software and Technology.Beijing:ACM,2015:192-192.
[8]LIU X J,XIE N,TANG K,et al.Lightweight for Web3D visualization of large-scale BIM scenes in real-time[J].Graphical models,2016,88:40-56.
[9]温来祥.大规模三维场景的轻量化与流式化传输[D].上海:同济大学软件学院,2015.
[10]LOWE D G.Distinctive image features from scaleInvariant keypoints[J].International journal of computer vision,2004,60(2):91-110.
[11]EITZ M,RICHTER R,BOUBEKEUR T,et al.Sketch-based shape retrieval[J].Acm transactions on graphics,2012,31(4):1-10.
[12]CACCIOLA F.CGAL 4.10-triangulated surface meshsimplification[EB/OL].[2018-04-03].https://doc.cgal.org/latest/Surface_mesh_simplification/index.html#title0
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