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  1. Data Management
  2. DM-4973

Reconsider high detection threshold in CharacterizeImageTask

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      Paul Price makes the reasonable recommendation that we consider providing PSF estimation with the N brightest sources in the image, rather than only detecting bright sources.

      Russell Owen reasonably believes that this is beyond the scope of DM-4692, hence this new issue.

      There should be very little new code needed here, but it may involve quite a bit of experimentation and validation.

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            rowen Russell Owen added a comment -

            Are we potentially fitting a spatially varying PSF? If so, then we should probably try to sample sources across the CCD, rather than simply taking the N brightest sources.

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            rowen Russell Owen added a comment - Are we potentially fitting a spatially varying PSF? If so, then we should probably try to sample sources across the CCD, rather than simply taking the N brightest sources.
            Hide
            jbosch Jim Bosch added a comment -

            Good point. What we really want is probably not as simple as just brightest N (though brightest N may be closer to what we do now with a high threshold).

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            jbosch Jim Bosch added a comment - Good point. What we really want is probably not as simple as just brightest N (though brightest N may be closer to what we do now with a high threshold).
            Hide
            swinbank John Swinbank added a comment -

            Perhaps this should be considered as part of PIPE-11.

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            swinbank John Swinbank added a comment - Perhaps this should be considered as part of PIPE-11.
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            jbosch Jim Bosch added a comment -

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            jbosch Jim Bosch added a comment -

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              Assignee:
              Unassigned Unassigned
              Reporter:
              jbosch Jim Bosch
              Watchers:
              Jim Bosch, John Parejko, John Swinbank, Russell Owen
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