Restoration of defocused and blurred images (2012)

#1

Post by lobo_tuerto » Sun, Oct 18, 2015, 4:39 AM UTC

Restoration of defocused and blurred images (2012)
yuzhikov.com

Re: Restoration of defocused and blurred images (2012)

#2

Post by musgrove » Sun, Oct 18, 2015, 5:14 AM UTC

Who takes pictures that are that crappy anymore?

Re: Restoration of defocused and blurred images (2012)

#3

Post by anyfoo » Sun, Oct 18, 2015, 5:31 AM UTC

musgrove wrote: post #2

Who takes pictures that are that crappy anymore?

Automated processes, quick snapshots that were taken under insufficient control, pictures taken from moving platforms or of moving objects... Maybe the picture was intentionally taken with other things in focus than the ones you are interested in now.

Honestly, how your comment came to be escapes me. Can you seriously not see the utility in those approaches? Do you really think blurry pictures are "not a thing anymore"?

Re: Restoration of defocused and blurred images (2012)

#4

Post by roel_v » Sun, Oct 18, 2015, 5:37 AM UTC

Wow, that's very impressive, and very un-intuitive (to me) that it's possible at all.

So, who is the first to dig out some pictures that were 'redacted before publication' and can be de-obfuscated this way?

Re: Restoration of defocused and blurred images (2012)

#5

Post by seyfulislam » Sun, Oct 18, 2015, 5:39 AM UTC

musgrove wrote: post #2

Who takes pictures that are that crappy anymore?

Surveillance cameras.

Re: Restoration of defocused and blurred images (2012)

#6

Post by s369610 » Sun, Oct 18, 2015, 5:52 AM UTC

musgrove wrote: post #2

Who takes pictures that are that crappy anymore?

telescopes?

Re: Restoration of defocused and blurred images (2012)

#7

Post by schrodinger » Sun, Oct 18, 2015, 5:59 AM UTC

So all those tv shows where someone just clicks "enhance" we're accurate after all?

Re: Restoration of defocused and blurred images (2012)

#8

Post by jakejake » Sun, Oct 18, 2015, 6:00 AM UTC

These really de-focused images are interesting for the article but if you can take a slightly out of focus image and make is laser-sharp then it is extremely useful for all kinds of photo and video applications. It's really tough to fix a shot that was slightly off when you're going for professional quality where you can't tell it was sharpened.

Re: Restoration of defocused and blurred images (2012)

#9

Post by lobo_tuerto » Sun, Oct 18, 2015, 6:02 AM UTC

Wondering what would happen if you apply this after enhancing (upsampling) something like what's shown in here as magic kernel thrice:

http://www.johncostella.com/magic/

Re: Restoration of defocused and blurred images (2012)

#10

Post by slimsag » Sun, Oct 18, 2015, 6:05 AM UTC

jakejake wrote: post #8

These really de-focused images are interesting for the article but if you can take a slightly out of focus image and make is laser-sharp then it is extremely useful for all kinds of photo and video applications. It's really tough to fix a shot that was slightly off when you're going for professional quality where you can't tell it was sharpened.

Highly agreed! I would be really curious to see if someone could take a slightly defocused picture and run it through this to see what it would produce / if it would introduce a bunch of undesirable effects or not.