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  1. Data Management
  2. DM-10513

Understand and remove ZOGY artifacts

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    • Type: Story
    • Status: Invalid
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: Alert Production
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      Description

      We are still getting artifacts diffims generated using both implementations of ZOGY the - full Fourier and the one where convolutions are performed in image space.

      Suggestions are to filter the PSFs (this has been implemented in code for this branch already), and filtering or trimming the Kr, Kn kernels. This has already been attempted but is not producing improvements.

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            reiss David Reiss added a comment - - edited

            Began work on this so may as well make it a ticket.

            Work is in associated ip_diffim branch and this notebook:

            https://github.com/lsst-dm/diffimTests/blob/master/imageMapReduce/18-ZOGY-on-real-data-try-fixing-artifacts.ipynb

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            reiss David Reiss added a comment - - edited Began work on this so may as well make it a ticket. Work is in associated ip_diffim branch and this notebook: https://github.com/lsst-dm/diffimTests/blob/master/imageMapReduce/18-ZOGY-on-real-data-try-fixing-artifacts.ipynb
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            gkovacs Gabor Kovacs [X] (Inactive) added a comment -

            The current set of considerations is collected under DM-23855.

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            gkovacs Gabor Kovacs [X] (Inactive) added a comment - The current set of considerations is collected under DM-23855 .

              People

              Assignee:
              reiss David Reiss
              Reporter:
              reiss David Reiss
              Watchers:
              David Reiss, Gabor Kovacs [X] (Inactive)
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                Updated:
                Resolved:

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