NDLI: ACTGIS: A Web-based collaborative tiled Geospatial image map system

Content Provider	IEEE Xplore Digital Library
Author	Chunyang Hu Yongwang Zhao Xin Wei Du, B. Yonggang Huang Ma, D. Xuan Li
Copyright Year	2010
Description	Author affiliation: National Lab of Software Development Environment, Beihang University, Beijing, China 100191 (Chunyang Hu; Yongwang Zhao; Ma, D.) \|\| Institute of Advanced Computing Technology (ACT Lab), Beihang University, Beijing, China 100191 (Xin Wei; Du, B.; Yonggang Huang) \|\| China Academy of Space Technology (CAST), Beijing, China 100086 (Xuan Li)
Abstract	In the past few years, the Web has become a de facto deployment environment for new application systems. Web-based Geospatial image map systems make satellite remote sensing data available to a wider range of public users than ever before. The storage and organization of global massive multi-dimensional remote sensing data have a big impact on the performance of Web mapping systems. To implement a performance-optimized Web mapping system, we propose a global grid division pyramid hierarchical data model for massive remote sensing data management, and adopt Hilbert curve allocation method for data placements. Collaborative web map browsing is also very important for many applications such as crisis management, military activities and government decision-making. However, realizing collaboration functionality on the basis of the stateless HTTP protocol, optimized for client requests, is not trivial. The limitations of the Web's request/response architecture prevent server from pushing real-time dynamic Web data. To address this problem, we propose a web-based interactive collaborative browsing framework based on server push technique (Comet). Moreover, we develop a prototype system called ACTGIS. Finally, we evaluate the prototype system using real remote sensing datasets, which demonstrate the good performance data access in our system.
Starting Page	521
Ending Page	528
File Size	1230667
Page Count	8
File Format	PDF
ISBN	9781424477548
ISSN	15301346
e-ISBN	9781424477555
DOI	10.1109/ISCC.2010.5546717
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-22
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tiles Servers Remote sensing Data models Collaboration Pediatrics Distributed databases Comet Hierarchical Data Model Web Map Service Hilbert Space-Filling Curve Collaborative Browsing
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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