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  1. Data Management
  2. DM-23855

Audit and debug current zogy image differencing code

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    Details

    • Type: Bug
    • Status: In Review
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Story Points:
      10
    • Epic Link:
    • Sprint:
      AP S20-5 (April), AP S20-6 (May), AP F20-1 (June), AP F20-2 (July), AP F20-5 (October), AP F20-6 (November), AP S21-3 (February)
    • Team:
      Alert Production
    • Urgent?:
      No

      Description

      The current zogy implementation is assumed to have issues in:

      • Understand how the variance plane should propagate in zogy (convolution then whitening decorrelation).
      • Correct padding and centering of images and PSFs in Fourier space opeartions. (numerical accuracy in DFT vs. origin location and periodicity assumptions)
      • Correct calculation of the difference image variance plane. (variance of image k-space components vs. k-space components of variance plane)
      • zogy.py:384 padSize argument usage

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              People

              Assignee:
              gkovacs Gabor Kovacs
              Reporter:
              gkovacs Gabor Kovacs
              Reviewers:
              Ian Sullivan
              Watchers:
              Gabor Kovacs, Ian Sullivan
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                Dates

                Created:
                Updated: