Help with Super-Resolution work on a license plate please

berkeman

Unfortunately no. The security camera presently only shoots 2 frames per second, and has mediocre resolution. Hopefully that will be upgraded in the near future. Thanks for trying, Warren. -Mike-

franznietzsche

Thats what I thought too when i first saw it, but then the letters would be orange.

Incidently, its worth keeping in mind it might be a 6 character plate, especially if it ends up not being a california plate.

NoTime

I was thinking the "Balloon" plate.
This from pictures has a hot air balloon on left and red lettering. Not the older? plates.

If you mask out the red and green channels it vaguly look like a circle on the left side.

mmccorma

I applied super-resolution techniques to your images but the result was not good. Probably they don't contain enough information when combined to produce a higher resolution image. See attached image for an example of 5 low-res license plate images (LR) and producing a good super-resolution (SR) result.

--Mike

Attached Thumbnails

 

berkeman

Thanks for tryin, mmccorma, and welcome to the PF. What software did you use?

mmccorma

No problem. I wrote the software and a GUI for super-resolution in Matlab. It finds the integer and then sub-pixel offsets among a set of images using the Taylor series method described in this paper: http://www.ph.tn.tudelft.nl/~lucas/p...IE2000CLLV.pdf

Finding the correct sub-pixel offsets is the key to resolving a higher resolution image. Then it's just a matter of interpolating a non-uniform grid of pixels to a uniform and denser grid.

--Mike

DaveC426913

All you need to do is send your picture to the CSI lab in Vegas for analysis.

They have magical software that can take a blurry, low-rez image of a whole bank interior, zoom in on a credit card in someone's hand, pick out the individual numbers on it, and display them in perfect clarity. Now that's enhancement!

mmccorma

Ok, here you can see how CSI does it :) ie. zoom-in on the license plate movie: http://www.youtube.com/watch?v=dLbvpGomrtk If the link doesn't work just search for Super-Resolution.

ray b

from mike's post I read _D267
with the _ looking like the handycapped tag wheelchair grafic