Long shot idea - va...
 
Share:
Notifications
Clear all

UPDATE FROM MABULA

I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.

 

Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.

 

APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46.  Before I release it, I will make sure that everything is working properly and then I will release it.

Long shot idea - variable deconvolution?

2 Posts
2 Users
0 Reactions
2,577 Views
 Bart
(@bdeclerc)
Main Sequence Star
Joined: 9 years ago
Posts: 14
Topic starter  

 

I'm finding it very hard to get perfect field flatness even with flatfield correctors - resulting in somewhat deformed stars in the outer zones of my images.
 
I know there are deconvolution algorithms which can "correct" for general star deformation based on a star PSF, but all such processes I've seen either work based on a theoretical PSF (a gaussian for example) or based on the PSF of one star or the average of multiple star. They all have in common that the same PSF is used for the deconvolution across the image.
 
An algorithm that could analyse star shape across the image and deconvolve based on a variable PSF could be a very valuable functionality, especially in combination with mosaicking, where the variable correction might allow more of the edge of some images to be used.
 
Certainly not the easiest of things to implement, but as far as I can tell, no other astro-software provides such a thing at this time - as long as the faults are relatively limited, it could be useful both for correcting field flatness and rotational unsharpness.


   
ReplyQuote
(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Hi Bart, apologies for the delay here!

Yes, that would definitely be nice for certain types of data and it is something on the list already. 😉



   
ReplyQuote
Share: