Uploaded image for project: 'Data Management'
  1. Data Management
  2. DM-10271

Fix order of operations when using temporary local backgrounds in detection

    Details

    • Type: Story
    • Status: Done
    • Priority: Undefined
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: meas_algorithms
    • Labels:
    • Templates:
    • Story Points:
      3
    • Sprint:
      DRP S17-5
    • Team:
      Data Release Production

      Description

      Our current implementation of the temporary local background approach to avoiding spurious detections near bright objects simply subtracts a local background from the full image before performing any detection steps. That can result in missed isolated-object detections and incorrect Footprints for large objects.

      Instead, we should:
      1. Detect Footprints and Peaks.
      2. Subtract the local background.
      3. Detect Peaks within each Footprint again, and use the new set of Peaks instead of the old set if and only if there is at least one Peak in the new set.

      This really ought to be fixed before the HSC internal release or major HSC processing at NCSA.

        Attachments

          Container Issues

            Issue Links

              Activity

                People

                • Assignee:
                  jbosch Jim Bosch
                  Reporter:
                  jbosch Jim Bosch
                  Reviewers:
                  Bob Armstrong, John Swinbank, Paul Price
                  Watchers:
                  Bob Armstrong, Jim Bosch, John Swinbank, Paul Price, Robert Lupton
                • Votes:
                  0 Vote for this issue
                  Watchers:
                  5 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved:

                    Summary Panel