Design and implementation on rapid web publication of massive remote sensing images
With the progress of researches on the integration of Geographic Information System (GIS) and Remote Sensing (RS),digital earth,and information sharing,to publish RS images on the Internet has become a significant research work.In this study,image pyramid model was introduced,and an efficient algorithm to build image pyramid was presented for convenient data storage and retrieval.In order to improve the efficiency,the process of image cutting and resampling was implemented in the RAM,avoiding the unnecessary I/O operations.The algorithm was implemented by combining Java and C++ languages,ensuring both the processing speed and distributed architecture.And two distributed implementation approaches were proposed,based on B/S and C/S architecture respectively.In the programs,some useful functions,such as data compression,image format conversion,watermarking,and automatic error-correction,were also implemented to facilitate and ensure the web publishing work.Tests of the programs with a global RS image showed that they worked efficiently,robustly,and flexibly under the Internet environment.Also,the programs were endowed with user-friendly graphical interfaces,and easy to use.Therefore the rapid web publication of RS images on the Internet becomes easier to accomplish.
WebGIS remote sensing remote sensing image image pyramid model web publication
Qingquan Tan Jiantao Bi Tianhe Chi Qun Liu
Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China;School of Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China School of Electrical & Electronic Engineering,Shandong University of Technology,Zibo 255049,China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）