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首页> 外文会议>18th ACM SIGSPATIAL international conference on advances in geographic information systems 2010 >Beyond Rasters: Introducing The New OGC Web Coverage Service 2.0
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Beyond Rasters: Introducing The New OGC Web Coverage Service 2.0

机译：超越栅格：引入新的OGC Web Coverage Service 2.0

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In the classical triad of vector, raster, and meta data, it is the raster part which is not yet sufficiently supported in SDIs nowadays. Consequently, integration of earth observation imagery, LIDAR, legacy map scans, etc. into Spatial Data Infrastructures (SDIs) remains incomplete. In terms of standards, the OGC Web Coverage Service (WCS) Standard defines open interfaces for accessing and processing of raster data, more generally: coverages. In August 2010, the completely overhauled WCS 2.0 has been adopted by OGC. To make coverages interchangeable across all OGC-based services, WCS 2.0 has been based on Geography Markup Language (GML) 3.2.1, with a small, backwards compatible addition to achieve informational completeness. In parallel to specification writing, its reference implementation and an online demo are being pursued. WCS 2.0 offers several advantages over previous versions, such as: support for general n-D raster data and non-raster coverage types; crisp, modular, and easy to understand; flexible and adaptive; harmonized with GML and Sensor Web Enablement (SWE); improved testability; and allows for efficient and scalable implementations. In this paper we present WCS 2.0 and some central design rationales. Further, we inspect the reference implementation architecture discussing some features critical for scalability. Finally, we give an outlook on next steps, such as the planned WCS Earth Observation Application Profile.
机译：在矢量，栅格和元数据的经典三合会中，当今的SDI尚未充分支持栅格部分。因此，将地球观测图像，LIDAR，遗留地图扫描等集成到空间数据基础架构（SDI）中的过程仍然不完整。在标准方面，OGC Web Coverage Service（WCS）标准定义了用于访问和处理栅格数据（更广泛地说是：coverage）的开放接口。 2010年8月，OGC采用了全面改造的WCS 2.0。为了使覆盖范围可以在所有基于OGC的服务之间互换，WCS 2.0已基于地理标记语言（GML）3.2.1，并带有少量向后兼容的附加功能，以实现信息完整性。与规范编写并行的同时，其参考实现和在线演示也在进行中。与以前的版本相比，WCS 2.0具有许多优势，例如：支持常规n-D栅格数据和非栅格覆盖类型；清晰，模块化且易于理解；灵活和适应性强；与GML和Sensor Web Enablement（SWE）协调一致；增强的可测试性；并允许高效且可扩展的实施方式。在本文中，我们介绍了WCS 2.0和一些主要的设计原理。此外，我们检查了参考实现体系结构，讨论了一些对可伸缩性至关重要的功能。最后，我们对下一步进行了展望，例如计划中的WCS地球观测应用概况。

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