Multiresolution reference model for digital earth

我们的工业合作伙伴，PYXIS创新公司，是一家开发数字地球软件的公司，该软件对地球及其数据进行建模，称为WorldView。数字地球是一个框架，它使用地球的数字表示作为地理空间数据的集成、管理、可视化和处理的参考模型。这样的框架有助于有效地获取地理综合信息，帮助广大公众了解和作出有关地球及其影响问题的决定。然而，地理空间数据集的体积往往很大，并且具有许多不同级别的保真度。这对数字地球框架产生了重大影响，当我们希望对这些数据进行查询或通过互联网传输它们时，会带来许多挑战。此外，这些查询只有在其结果通过一组自然的交互以可理解和引人入胜的方式可视化时才有意义。在NSERC CRD的支持下，我们的研究团队将探索先进的计算和数学方法，以高效地处理和流动不同分辨率的海量地理空间数据。这些方法对于提高数字地球软件的性能至关重要。此外，研究小组将使用、定制和/或修改最近提出的交互式图形和可视化方法，以便创造性地可视化地理空间数据并与之交互，并将结合这些技术来解决几个实际使用案例。加拿大是一个拥有大量自然资源的大国，改进的地理空间数据处理和可视化方法将使加拿大受益匪浅。尤其是，PYXIS INVERATION的世界观将有助于将加拿大带入图形和地理信息系统软件开发的前沿。

Our industrial partner, PYXIS innovation, Inc., is a developer of Digital Earth software that models the Earth and its data, called WorldView. Digital Earth is a framework that uses a digital representation of Earth as a reference model for the integration, management, visualization and processing of geospatial data. Such a framework facilitates efficient access to geo-integrated information, helping the public at large to learn and make decisions about the Earth and the issues affecting it. Geospatial data sets, however, tend to be large in volume and feature many different levels of fidelity. This has a significant impact on the Digital Earth framework, creating many challenges when we wish run queries on these data or stream them over the internet. Furthermore, these queries are only meaningful if their results are visualized in an understandable and engaging way through a natural set of interactions. With the support of an NSERC CRD, our research team will explore advanced computational and mathematical methods to efficiently process and stream massive amounts of geospatial data at different resolutions. Such methods are essential for improving the performance of Digital Earth software. Additionally, the research team will employ, customize, and/or modify recently proposed methods from interactive graphics and visualization in order to creatively visualize and interact with geospatial data, and will combine these techniques to solve several practical use cases.As a vast country with a substantial amount of natural resources, Canada stands to benefit greatly from improved geospatial data processing and visualization methods. PYXIS innovation's WorldView, in particular, will contribute to bringing Canada towards the forefront of graphics and GIS software development.