These imaging methods have been widely used in most remote sensing tasks, but due to the characteristics of the data, the processing of optical remote sensing signals is facing many challenges.

这些成像方式在多数遥感任务中得到广泛应用，但是由于数据自身的特点，在相关光学遥感信号的处理面临诸多挑战。

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Urban remote sensing has strong superiority in mass data acquisition and processing, thus it becomes the core technology of the construction of digital city.

城市遥感在海量数据获取和处理方面具有强大优势，因而成为数字城市建设的核心技术之一。

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Furthermore, how to share the algorithms and software resource of the remote sensing data processing is an emergent problem now.

同时，如何实现方便快捷的遥感信息处理的算法和软件资源共享也是现阶段急需解决的问题。

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