Montage: a grid portal and software toolkit for science-grade astronomical image mosaicking

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.Comment: 16 pages, 11 figure

Montage : eine Bibliographie

Kompiliert von Hans J. Wulff Inhalt: 1. Montage 2. Montageexperiment

CASE STUDY 3: Literature and Film - Reading Film: An Angel at My Table

A research case study within a chapter entitled, 'Literary Research and Other Media'; exploring the relationship between film adaptation, life writing and examining in particular the use of montage, with reference to Sergei Eisenstein's theories of montage and Jane Campion's film adaptation of Janet Frame's memoir, 'An Angel at My Table'

The Montage Image Mosaic Service: Custom Image Mosaics On-Demand

The Montage software suite has proven extremely useful as a general engine for reprojecting, background matching, and mosaicking astronomical image data from a wide variety of sources. The processing algorithms support all common World Coordinate System (WCS) projections and have been shown to be both astrometrically accurate and flux conserving. The background ‘matching’ algorithm does not remove background flux but rather finds the best compromise background based on all the input and matches the individual images to that. The Infrared Science Archive (IRSA), part of the Infrared Processing and Analysis Center (IPAC) at Caltech, has now wrapped the Montage software as a CGI service and provided a compute and request management infrastructure capable of producing approximately 2 TBytes / day of image mosaic output (e.g. from 2MASS and SDSS data). Besides the basic Montage engine, this service makes use of a 16-node LINUX cluster (dual processor, dual core) and the ROME request management software developed by the National Virtual Observatory (NVO). ROME uses EJB/database technology to manage user requests, queue processing and load balance between users, and managing job monitoring and user notification. The Montage service will be extended to process userdefined data collections, including private data uploads

Vincente Minnelli : eine Bibliographie

Die meisten dieser Aufnahmen enstammen Katalogen und den Bibliographien aus Büchern über Minnelli. Eine erste Fassung der Bibliographie wurde als bibliographische Beilage der 'Montage / AV' (Beil. 1, 1993) vorgelegt

Dancing to the music of the till— John Goto’s Ukadia

Dancing to the music of the till— John Goto’s Ukadia explores the photographic montage work of Goto in relation to an analysis of contemporary cultures of consumption