Web-based visualization of large 3D urban building models  

作　　者：Liqiang Zhang Chunming Han Liang Zhang Xiaokun Zhang Jonathan Li 

机构地区：[1]State Key Laboratory of Remote Sensing Science,Beijing Normal University,Beijing,China [2]The Center for Earth Observation and Digital Earth,Chinese Academy of Science,Beijing,China [3]Department of Computer Science,Beijing Electronic Science and Technology Institute,Beijing,China [4]Department of Geography and Environmental Management,Faculty of Environment,University of Waterloo,Waterloo,Canada

出　　处：《International Journal of Digital Earth》2014年第1期53-67,共15页国际数字地球学报（英文）

基　　金：supported by the National Natural Science Foundation of China(No.60502008);the National 863 High-Tech Program of China(No.2011AA120302).

摘　　要：Adaptive rendering of large urban building models has become an important research issue in three-dimensional(3D)geographic information system(GIS)applications.This study explores a way for rendering web-based 3D urban building models.A client-server hybrid rendering approach is presented for large 3D city models,stored on a remote server through a network.The approach combines an efficient multi-hierarchical building representation with a novel image-based method,3D image impostor generated on demand by a remote server.This approach allows transferring complex scenes progressively while keeping high visualization quality.We also evaluated the rendering and data transferring performance of the proposed approach.

关 键 词：urban building models progressive transmission client-server hybrid 3D visualization 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]