Details
-
Type:
Story
-
Status: Done
-
Resolution: Done
-
Fix Version/s: None
-
Component/s: None
-
Labels:None
-
Story Points:8
-
Epic Link:
-
Team:Alert Production
Description
Try out DFT space operations to understand:
- How to properly do convolution in DFT space in image and PSF kernel relation
- Padding, borders, translation of originals
- Numeric optimization of DFT, IDFT transformations by shifting significant values into the high-frequency region.
- Demonstrate a kernel inversion (deconvolution) operation, prototype how to do this in the decorrelation afterburner
- Ian Sullivan's hint: Check whether the above works for odd size FFT calls because odd size handling in DFT may be implementation dependent.
Write this in a jupyter notebook.
Attachments
Issue Links
Activity
| Description |
Try out DFT space operations to understand:
* How to properly do convolution in DFT space in image and PSF kernel relation * Padding, borders, translation of originals * Numeric optimization of DFT, IDFT transformations by shifting significant values into the high-frequency region. * Demonstrate a kernel inversion (deconvolution) operation, prototype how to do this in the decorrelation afterburner Write this in a jupyter notebook. |
Try out DFT space operations to understand:
* How to properly do convolution in DFT space in image and PSF kernel relation * Padding, borders, translation of originals * Numeric optimization of DFT, IDFT transformations by shifting significant values into the high-frequency region. * Demonstrate a kernel inversion (deconvolution) operation, prototype how to do this in the decorrelation afterburner * [~sullivan]'s hint: Check whether the above works for odd size FFT calls because odd size handling in DFT may be implementation dependent. Write this in a jupyter notebook. |
| Status | To Do [ 10001 ] | In Progress [ 3 ] |
Would you please review the notebook I've shown ? l've added some comments. It's a PR in diffimTests.
| Reviewers | Ian Sullivan [ sullivan ] | |
| Status | In Progress [ 3 ] | In Review [ 10004 ] |
| Epic Link |
|
| Team | Alert Production [ 10300 ] |
Just checking in that you saw the comments and change requests I left on the PR last week.
| Status | In Review [ 10004 ] | In Progress [ 3 ] |
I updated the notebook texts to address your comments.
| Status | In Progress [ 3 ] | In Review [ 10004 ] |
The updated notebook looks good. I had a couple of fairly minor comments on the pull request, but go ahead and merge and mark this 'Done' once you are happy with everything.
| Status | In Review [ 10004 ] | Reviewed [ 10101 ] |
| Resolution | Done [ 10000 ] | |
| Status | Reviewed [ 10101 ] | Done [ 10002 ] |
| Story Points | 8 |
Based on numpy fft docs and fftfrwq, in the odd case the highest frequency is less than 1/2.