Ticket #7449 (closed: fixed)

Opened 7 years ago

Last modified 5 years ago

Make Algorithm to separate background and signal

Reported by: Vickie Lynch Owned by: Vickie Lynch
Priority: major Milestone: Release 3.0
Component: Diffraction Keywords:
Cc: petersonpf@… Blocked By:
Blocking: #7783, #7786, #7806 Tester: Peter Peterson

Description (last modified by Vickie Lynch) (diff)

  1. Appl. Cryst. (2013). 46, 663-671

Objective algorithm to separate signal from noise in a Poisson-distributed pixel data set

  1. Straaso/, D. Mueter, H. O. So/rensen and J. Als-Nielsen

Synopsis: A method is described for the estimation of background level and separation of background pixels from signal pixels in a Poisson-distributed data set by statistical analysis.

Attachments

profile.nxs (204.5 KB) - added by Vickie Lynch 7 years ago.
profile of single crystal data along cylinder length

Change History

comment:1 Changed 7 years ago by Vickie Lynch

  • Status changed from new to accepted

comment:2 Changed 7 years ago by Nick Draper

  • Status changed from accepted to assigned

comment:3 Changed 7 years ago by Nick Draper

  • Status changed from assigned to new

comment:4 Changed 7 years ago by Nick Draper

  • Milestone changed from Release 2.6 to Backlog

Moved to backlog at the code freeze for R2.6

comment:5 Changed 7 years ago by Vickie Lynch

  • Description modified (diff)
  • Milestone changed from Backlog to Release 3.0

comment:6 Changed 7 years ago by Vickie Lynch

  • Status changed from new to inprogress

Refs #7449 New algorithm to remove background

Changeset: bf2be28da85ed754fe45370925bff8f3db0df579

comment:7 Changed 7 years ago by Vickie Lynch

Refs #7449 fix Mac builds

Changeset: d3f231118f7d85ab1ce28918111295aaa36cd3a1

comment:8 Changed 7 years ago by Vickie Lynch

Refs #7449 add test for separating background

Changeset: 808795a53e46e96051519b99275dbee202fabf35

comment:9 Changed 7 years ago by Vickie Lynch

Refs #7449 struct for sorting peaks

Changeset: 405d13cdc24efe93d925328f1d93dde4cc22b538

comment:10 Changed 7 years ago by Vickie Lynch

  • Blocking 7783 added

comment:11 Changed 7 years ago by Vickie Lynch

  • Blocking 7786 added

comment:12 Changed 7 years ago by Vickie Lynch

Refs #7449 rename FitPeakBackground and only output peak point range

Changeset: b1248f1ce6f31a23b8f133763f0c540a10e98291

comment:13 Changed 7 years ago by Vickie Lynch

Refs #7449 background estimation in table workspace

Changeset: 370949ab7ab8e27d2f8e073433d91e2e743bf4fc

comment:14 Changed 7 years ago by Vickie Lynch

Refs #7449 fix windows build

Changeset: 8377337044b2f540766445ae50812f91d21c6061

Changed 7 years ago by Vickie Lynch

profile of single crystal data along cylinder length

comment:15 Changed 7 years ago by Vickie Lynch

  • Status changed from inprogress to verify
  • Resolution set to fixed

To test load attached file and run FindPeakBackground.

comment:16 Changed 7 years ago by Vickie Lynch

  • Blocking 7806 added

comment:17 Changed 7 years ago by Peter Peterson

  • Status changed from verify to verifying
  • Tester set to Peter Peterson

comment:18 Changed 7 years ago by Peter Peterson

  • Status changed from verifying to reopened
  • Resolution fixed deleted

A couple of usability things:

  1. WorkspaceIndex should allow a list of indices rather than all or one.
  2. Between the wiki and the mouse-over text, the use of SigmaConstant is unclear.
  3. Does the fit window parameter need to be the same for all spectra (I think so)? Make this clear in the wiki.
  4. Wiki should give a brief description of the output table
  5. The output table columns should get slightly renamed: peak_min->peak_min_index and peak_max->peak_max_index. This would clarify what they are.

comment:19 Changed 7 years ago by Vickie Lynch

  • Status changed from reopened to inprogress

Refs #7449 fixed usability issues found in testing

Changeset: 91415e4285b1cce38290663851d054ad0fbe3158

comment:20 Changed 7 years ago by Vickie Lynch

  • Status changed from inprogress to verify
  • Resolution set to fixed

comment:21 Changed 7 years ago by Peter Peterson

  • Status changed from verify to verifying

comment:22 Changed 7 years ago by Peter Peterson

  • Status changed from verifying to closed

comment:23 Changed 7 years ago by Nick Draper

  • Component changed from Framework to Diffraction

comment:24 Changed 5 years ago by Stuart Campbell

This ticket has been transferred to github issue 8295

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