英文版
中文版
欢迎您,您可以选择
最新公告:欢迎您访问同济大学软件学院图形图像研究中心(Smart3D Media Lab)网站。

您当前的位置:首页>>研究方向 研究方向

高效、低成本、轻量级3D建模方法
发布时间:2015-03-25 丨 阅读次数:

LPM: Lightweight Progressive Meshes Towards Smooth Transmission of Web3D Media over Internet

Transmission of Web3D media over the Internet can be slow, especially when downloading huge 3D models through relatively limited bandwidth.  Currently, 3D compression and progressive meshes are used to alleviate the problem, but these schemes do not consider similarity among the 3D components, leaving rooms for improvement in terms of efficiency.  This paper proposes a similarity-aware 3D model reduction method, called Lightweight Progressive Meshes (LPM).  The key idea of LPM is to search similar components in a 3D model, and reuse them through the construction of a Lightweight Scene Graph (LSG). The proposed LPM offers three significant benefits. First, the size of 3D models can be reduced for transmission without almost any precision loss of the original models. Second, when rendering, decompression is not needed to restore the original model, and instanced rendering can be fully exploited. Third, it is extremely efficient under very limited bandwidth, especially when transmitting large 3D scenes. Performance on real data justifies the effectiveness of our LPM, which improves the state-of-the-art in Web3D media transmission.                

 Demo can accessed online even in mobile Web browsers by clicking the Web link:  http://smart3d.tongji.edu.cn/~laixiang/lpm/.


二、主要发表论文:

[1] Michael Englert, Yvvone Jung, Paul Grimm and Jinyuan Jia, "A Streaming Framework for Instant 3D Rendering and Interaction" (Poster paper) ACM VRST 2015 (VR领域顶级会议, CCF-C类会议)

[2] Laixinag Wen, Ning Xie, Shuang Liang, Jinyuan Jia. LPM: Lightweight Progressive Meshes Towards Smooth Transmission of Web3D Media over Internet, to publish in Special Issue of Computer Animation and Virtual Worlds (SCI, CCF-C), 2015.

[3] Wen Zhou and Jinyuan Jia. "Lightweight Web3D Visualization Framework using Dijkstra-Based Mesh Segmentation". Lecture Notes in Computer Science. Proceedings of Edutainment. June, 2017.

[4] Laixiang Wen, Jinyuan Jia, Jianhua Zhang and Shuang Liang,“Automatic Detection of Repetitive Components in 3D Mechanical Engineering Models”, Advances in Mechanical Engineering, 2013. SCI收录)


 

 

↑上一篇:第一篇
↓下一篇:高效、低功耗、轻量级Web3D引擎
图形图像研究中心版权所有
联系地址:上海市曹安公路4800号同济大学济事楼316室
电话:021-69583731