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The development of Digital Photogrammetric System is forward to distributed and parallel processing. There are many researches on distributed and parallel Digital Photogrammetry System and a lot of researches are carried out on High Performance Computing systems (i.e. Blade). But there are few distributed and parallel research performed in the context of PC clusters. According to the principles of distributed systems, a middleware-based distributed system of orthorectification for high resolution satellite imagery is proposed in the context of PC clusters. The paper emphasizes the descriptions of the components in the system and discusses the corresponding strategies of task scheduling and performance in the module. The feasibility of the system is proved in the practice. |
