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Mosaicking with MOPEX

Makovoz, David and Khan, Iffat (2005) Mosaicking with MOPEX. In: Astronomical Data Analysis Software and Systems XIV. ASP Conference Series. No.347. Astronomical Society of the Pacific , San Francisco, CA, pp. 81-85. ISBN 1-58381-215-6.

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We present MOPEX - a software package for image mosaicking and point source extraction. MOPEX has been developed for the pitzer Space Telescope. This paper concentrates on the mosaicking aspects of the package. MOPEX features the use of several interpolation techniques, coaddition schemes, and robust and flexible outlier detection based on spatial and temporal filtering. A number of original algorithms have been designed and implemented in MOPEX. Among them is direct plane-to-plane coordinate transformation, which allows at least an order of magnitude speed up in performing coordinate transformation by bypassing the sky coordinates. The dual outlier detection makes possible outlier detection in the areas of even minimal redundancy. Image segmentation based on adaptive thresholding is used for object detection, which is part of outlier detection. Efficient use of computer memory allows mosaicking of data sets of very deep coverage of thousands of images per pointing, as well as areas of sky covering many square degrees. Although designed for Spitzer data, MOPEX does not require any Spitzer-specific fits header keywords to run, and can be applied to other data, that have standard header information on the image geometry and pointing. The package is available for distribution at

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Additional Information:© 2005 Astronomical Society of the Pacific. This work was carried out at the Spitzer Science Center, with funding from NASA under contract 1407 to the California Institute of Technology and the Jet Propulsion Laboratory.
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Series Name:ASP Conference Series
Issue or Number:347
Record Number:CaltechAUTHORS:20110811-132325985
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24806
Deposited By: Tony Diaz
Deposited On:06 Oct 2011 20:22
Last Modified:03 Oct 2019 03:00

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