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中国科学院计算机网络信息中心在高效3D卷积算法上取得进展（图）
三维 神经网络 分析
2024/12/7
高性能计算和人工智能的新兴发展显著扩展了三维卷积神经网络（3D CNN）的应用。然而在实际的需求应用中，复杂的3D卷积计算是影响性能的主要因素。2024年8月27日，中心高性能计算部科研人员基于新一代SW26010Pro处理器提出了一种高效的3D卷积算法。新一代神威(Sumway)超级计算机在HPC+AI领域表现出卓越的计算能力，该工作依托Sunway平台对三维卷积算子进行了详细的分析与优化，针对...
SCAN-TO-BIM vs 3D IDEAL MODEL HBIM: PARAMETRIC TOOLS TO STUDY DOMES GEOMETRY
Procedural Modeling HBIM Domes Parametric tools
2019/3/1
The contribution is part of an interdisciplinary research that aims to address the problems of knowledge, interpretation and documentation of vulnerable structures such as the brick Renaissance domes ...
UNIFIED TOPOLOGICAL FRAMEWORK FOR RETRIEVING 2D AND 3D MULTI-SCALE SPATIAL INFORMATION
Topological connectivity CityGML 3D building multi-scale LoD 2D and 3D model
2018/11/9
Different applications or users need different model (differ requirement on level of details; geometry and information), less focuses in topological element. Improper manage geometry, attribute and to...
MESH MODELLING OF 3D POINT CLOUD FROM UAV IMAGES BY POINT CLASSIFICATION AND GEOMETRIC CONSTRAINTS
Surface Reconstruction Surface Normal Point cloud Mesh model
2018/6/4
The point cloud generated by multiple image matching is classified as an unstructured point cloud because it is not regularly point spaced and has multiple viewpoints. The surface reconstruction techn...
“TORINO 1911” PROJECT: A CONTRIBUTION OF A SLAM-BASED SURVEY TO EXTENSIVE 3D HERITAGE MODELING
SLAM photogrammetry LiDAR Zeb Revo RT Mobile Mapping Systems landscape Cultural Heritage
2018/6/4
In the framework of the digital documentation of complex environments the advanced Geomatics researches offers integrated solution and multi-sensor strategies for the 3D accurate reconstruction of str...
FROM A POINT CLOUD SURVEY TO A MASS 3D MODELLING: RENAISSANCE HBIM IN POGGIO A CAIANO
Point clouds Digital accuracy Parametric mass modelling HBIM Renaissance architecture Scan to BIM
2018/6/4
This paper introduces some studies developed regarding the Medicea Villa at Poggio a Caiano, in Italy. The monumental building was built by Lorenzo de’ Medici and his heirs following the design of the...
3维多输入多输出(3D-MIMO)系统能有效提升频谱效率，提高系统容量。但用户数和天线数的剧增，无法保证所有用户的导频都正交，给3D-MIMO信道估计带来估计精度下降和复杂度增加等问题。该文分析了上行3D-MIMO系统信道的结构稀疏特性和低秩特性，并基于这些特性提出一种信道估计算法，给出了算法的收敛性和复杂度。仿真结果表明估计算法能准确地恢复3D-MIMO的信道系数，并有较低的复杂度。
A 3D CAMPUS INFORMATION SYSTEM – INITIAL STUDIES
Geographical Information System, Campus Information System, 3D GIS, CityGML, Dynamic Pulse Function
2014/4/21
This paper discusses the method of developing Campus Information System. The system can handle 3D spatial data within desktop
and web environment. The method consists of texturing of building facade...
A CACHE DESIGN METHOD FOR SPATIAL INFORMATION VISUALIZATION IN 3D REAL-TIME RENDERING ENGINE
Memory cache Disk cache 3D Rendering Engine Multi-thread, Replacement policy
2014/4/25
A well-designed cache system has positive impacts on the 3D real-time rendering engine. As the amount of visualization data getting larger, the effects become more obvious. They are the base of the 3D...