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Changes between Version 8 and Version 9 of Background_Oversubtraction


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Timestamp:
Mar 15, 2011, 3:09:03 PM (15 years ago)
Author:
eugene
Comment:

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  • Background_Oversubtraction

    v8 v9  
    11== Background Model and Over and Under Subtraction on GPC1 Images ==
     2(Up to the [wiki:IPP_for_PS1 IPP for PS1])
    23
    34Bill identified an image from the CNP dataset which was generating large numbers of detections and taking an extremely long time to process.  Checking into this, I discovered that there is a problem with the source detection, particularly in cases where the background model is unable to follow the structures in the background, and when the image quality is poor (large FWHM).  At a suggestion from Michael Wood-Vasey, I have added an additional source filtering which appears to improve this situation.