[DM-21920] Try out and write notebook about demonstrating basic DFT space steps for ip_diffim operations - Jira

XML

Word

Printable

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.

is child task of

DM-21868 Debug and fix the decorrelation afterburner in ip_diffim

relates to

DM-23855 Audit and debug current zogy image differencing code

DM-21702 Investigate the cause of the high number of false sources in convolveTemplate=False image differencing

No builds found.

Data Management