期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B4
页码：205-208
出版社：Copernicus Publications
摘要：In traditional image production workflows, imagery is processed in multiple steps, with the imagery being sampled multiple times, and being read and written to disk multiple times. This reduces image quality and production efficiency. The linear workflows also are susceptible to bottlenecks when a single parameter in the workflow is not available or needs to be changed. ArcGIS Image server enables a geodatabase centric workflow by which the parameters and models for processing imagery are stored within a database and the imagery product is generated on demand as required directly from the base imagery. This methodology provide a number of advantages. For example, it enables serving of dynamic image services that can be updated as revised parameters become available. It enables the creation of graded products that change over time with the revised parameters and enabling improvements in quality assurance processes. The same image services can also be used to generate imagery products in the form of caches or the traditional tiled images that are required by most orthoimage mapping projects. The quality of the imagery is superior due to reduced sampling of the images. By optimizing the processing and reducing disk access, the production system is very efficient and scalable, enabling high production rates
