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  1. Data Management
  2. DM-9443

Understand why ZOGY(image-space) has issues (artifacts) but only with measured PSFs

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    • Type: Story
    • Status: To Do
    • Resolution: Unresolved
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      Description

      In DM-8796, it was found that:

      ZOGY(image space) has issues (artifacts) but only with measured PSFs, leading to fewer detections, more false positives. This is in comparison to ZOGY performed fully in Fourier space.
      – This seems to be related to padding of the kernels. I fixed the padding (removed the "unpadding" step) and things improved a lot. Doing that and increasing the padSize removes much of the artifacts but increases the width of the invalid convolution "window" around the edges of the image.
      – TODO: investigate tradeoff between padding of PSF for ZOGY (image-space) vs. artifacts on real data.

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              • Assignee:
                reiss David Reiss
                Reporter:
                reiss David Reiss
                Watchers:
                David Reiss, Simon Krughoff
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