计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (13): 12-15.

• 博士论坛 • 上一篇    下一篇

基于集群计算机的海量航空数码影像并行处理
——并行计算在航空数字摄影测量中的应用

张剑清,柯 涛,孙明伟   

  1. 武汉大学 遥感信息工程学院,武汉 430079
  • 收稿日期:2008-01-21 修回日期:2008-03-06 出版日期:2008-05-01 发布日期:2008-05-01
  • 通讯作者: 张剑清

Parallel processing of mass aerial digital images based on cluster computer——The application of parallel computing in aerial digital photogrammetry

ZHANG Jian-qing,KE Tao,SUN Ming-wei   

  1. School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China
  • Received:2008-01-21 Revised:2008-03-06 Online:2008-05-01 Published:2008-05-01
  • Contact: ZHANG Jian-qing

摘要: 航空数码影像的获取频率越来越快,同时数据量也越来越大,传统的基于串行计算的影像处理方式已很难满足高效率的生产需求和快速响应,因此必需采用并行计算来提高数据处理的效率。论述了一种基于集群计算机系统的海量航空数码影像并行处理方法,介绍了并行计算在航空数字摄影测量中的应用,并结合数字摄影测量原理和并行处理技术,提出了一种可满足快速响应需求的无控制影像镶嵌图快速制作方法。生产实践验证了并行方法的可行性和高效性,生产效率比传统数字摄影测量工作站提高了3-10倍。

关键词: 航空数码影像, 集群计算机, 并行计算, 数字摄影测量, 镶嵌图, 快速响应

Abstract: With the development of electronic information,the aerial digital image updating is more frequent and the data is more mass,the traditional method of image processing based on serial computing is difficult to meet the needs of high production efficiency and rapid respond.For improving the efficiency of data processing,the computing must be parallel.The paper discusses the method of parallel processing of mass aerial digital images based on cluster computer system.It also presents a method of the quick generation of mosaic image without ground control point based on digital photogrammetry.The experiment results demonstrate that the parallel computing obviously improves the efficiency of mass data processing.

Key words: aerial digital images, cluster computer system, parallel computing, digital photogrammetry, mosaic image, rapid response