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  1. Data Management
  2. DM-18545

Improve the interpolation kernels used for PSFs

    Details

    • Type: Story
    • Status: Won't Fix
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: afw

      Description

      In DM-17429 we discuss the use of Lanczos5 kernels to improve the PSF interpolation on coadds, but we also found that Lanczos7 kernels had worse behaviour.

      Investigate interpolation in single visit and coadds, getting to the bottom of exactly what is going on, and propose a fix.

       

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            kannawad Arun Kannawadi added a comment -

            The work in DM-21881 shows that the higher order interpolation kernels performing worse was only a temporary behavior and is not seen in more recent versions of the stack

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            kannawad Arun Kannawadi added a comment - The work in DM-21881 shows that the higher order interpolation kernels performing worse was only a temporary behavior and is not seen in more recent versions of the stack

              People

              • Assignee:
                kannawad Arun Kannawadi
                Reporter:
                rhl Robert Lupton
                Watchers:
                Arun Kannawadi, Bob Armstrong, Dan Taranu, Jim Bosch, Robert Lupton
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                • Created:
                  Updated:
                  Resolved:

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