Results that can be obtained by image restoration methods are quite impressive. Please find below a couple of links that describe some deconvolution algorithms used to restore blurred images:
http://yuzhikov.com/articles/BlurredImagesRestoration1.htm
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4934271/
http://yuzhikov.com/articles/BlurredImagesRestoration1.htm
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4934271/