Montage：科学级天文图像拼接的网格门户和软件工具包
Montage: a grid portal and software toolkit for science-grade astronomical image mosaicking
摘要：
蒙太奇是一个便携式软件工具包，用于通过合成多个天文图像来构建定制的科学级马赛克。由蒙太奇构建的马赛克保留了输入图像中源的天体测量（位置）和光度测量（强度）。要构建的镶嵌图由用户根据一组参数来指定，包括要使用的数据集和波长、天空上的位置和大小、坐标系和投影以及空间采样率。许多天文数据集是巨大的，并且存储在分布式档案中，在大多数情况下，相对于可用的计算资源是远程的。蒙太奇可以在单处理器和多处理器计算机（包括集群和网格）上运行。如果用于构建镶嵌图的数据或计算机位于互联网上的远程位置，则使用标准网格工具来运行蒙太奇。本文介绍了架构，算法和使用蒙太奇作为一个软件工具包，并作为一个网格门户。时序结果显示了蒙太奇性能如何随群集计算机上的处理器数量而变化。此外，我们比较了两种方法在网格上并行运行蒙太奇的性能。
英文摘要：
Montage is a portable software toolkit for constructing custom, science-grade mosaics by composing multiple astronomical images. The mosaics constructed by Montage preserve the astrometry (position) and photometry (intensity) of the sources in the input images. The mosaic to be constructed is specified by the user in terms of a set of parameters, including dataset and wavelength to be used, location and size on the sky, coordinate system and projection, and spatial sampling rate. Many astronomical datasets are massive, and are stored in distributed archives that are, in most cases, remote with respect to the available computational resources. Montage can be run on both single- and multi-processor computers, including clusters and grids. Standard grid tools are used to run Montage in the case where the data or computers used to construct a mosaic are located remotely on the Internet. This paper describes the architecture, algorithms, and usage of Montage as both a software toolkit and as a grid portal. Timing results are provided to show how Montage performance scales with number of processors on a cluster computer. In addition, we compare the performance of two methods of running Montage in parallel on a grid.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
