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  1. Data Management
  2. DM-17425

Investigate use of smaller patch sizes

    Details

    • Type: Story
    • Status: To Do
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: None
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      Description

      Deep observations and improved sky subtraction combine to link detections over a large fraction of the coadd patches, which makes things difficult for the deblender, resulting in large memory usage and very long execution times.

      Ikeda-san is investigating the use of smaller patch sizes, which artificially truncates the blends. I have a patch for the deblender that does the same kind of thing there. We need to validate these approaches. We are especially concerned that we not degrade the photometry.

        Attachments

        1. det_compare_4k_2k_revisedDetection.png
          det_compare_4k_2k_revisedDetection.png
          3.32 MB
        2. fig_deltam_large1_position.pdf
          2.76 MB
        3. patchsize_2k4k-1.pdf
          525 kB
        4. patchsize_4k_2k_det.png
          patchsize_4k_2k_det.png
          2.10 MB
        5. patchsize_twocolor_v2.pdf
          237 kB
        6. patchsize_twocolor.pdf
          263 kB
        7. patchsize_v4.pdf
          589 kB
        8. patciszie_v5.pdf
          485 kB

          Activity

            People

            • Assignee:
              ikedahr Hiroyuki Ikeda
              Reporter:
              price Paul Price
              Watchers:
              Hiroyuki Ikeda, Masayuki Tanaka, Paul Price
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              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:

                Summary Panel