吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (01): 224-0228.

• paper • Previous Articles     Next Articles

Distributed cutting algorithm of remote sensing images on Internet

TAN Qing-quan1,2, LIU Qun3, BI Jian-tao2, CHI Tian-he2   

  1. 1.Earthquake Administration of Beijing Municipality, Beijing 100080, China|2.Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China|3.College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255049, China
  • Received:2007-11-30 Online:2010-01-01 Published:2010-01-01

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Abstract:

For quick publication of Remote Sensing (RS) images in Internet, this paper proposed an efficient algorithm to build image pyramid model. In order to improve the efficiency, both the image cutting and resampling are implemented in the RAM, avoiding the unnecessary I/O operations. Two distributed implementation approaches under Internet environment are presented, which are based on Browser/Server (B/S) and Client/Server (C/S) architectures respectively. They are programmed by combing C++ with Java, ensuring the processing speed and the distributed architecture of the algorithm. Test results with a global RS image show that the programs can work efficiently, robustly and flexibly under Internet environment. Also, the programs are endowed with userfriendly graphical interfaces and easy to use.

Key words: WebGIS, remote sensing, remotely sensed image, image pyramid storage model, image cutting, Internet

CLC Number: 

  • TP391
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