Details

Type: Bug

Status: Done

Resolution: Done

Fix Version/s: None

Component/s: None

Labels:None

Story Points:10

Epic Link:

Sprint:AP S205 (April), AP S206 (May), AP F201 (June), AP F202 (July), AP F205 (October), AP F206 (November), AP S213 (February), AP S214 (March), AP S215 (April), AP F211 (June), AP F212 (July), AP F213 (August), AP F214 (September)

Team:Alert Production

Urgent?:No
Description
The current zogy implementation is assumed to have issues in:
 Understand how the variance plane should propagate in zogy (convolution then whitening decorrelation).
 Correct padding and centering of images and PSFs in Fourier space opeartions. (numerical accuracy in DFT vs. origin location and periodicity assumptions)
 Correct calculation of the difference image variance plane. (variance of image kspace components vs. kspace components of variance plane)
 zogy.py:384 padSize argument usage
Attachments
Issue Links
 is duplicated by

DM9441 Additional debugging of ZOGY and A&L(decorrelation)
 Invalid

DM10513 Understand and remove ZOGY artifacts
 Invalid

DM11656 Fix ZOGY failure when PSFs are offset
 Invalid
 is parent task of

DM25115 Implement zogy subtraction with nonspatial PSF
 Done

DM25174 Draft current understanding of DM's ZOGY implementation as a technical note
 Done
 relates to

DM12917 running ZOGY with coadded templates produces improper results
 Invalid

DM21868 Debug and fix the decorrelation afterburner in ip_diffim
 Invalid

DM21920 Try out and write notebook about demonstrating basic DFT space steps for ip_diffim operations
 Done
Could you please add a comment describing the work this ticket covered, and in particular any answers to the issues raised in the description.