Detection of Blur in Images/Video sequences

Question

I had asked this on photo stackexchange but thought it might be relevant here as well, since I want to implement this programatically in my implementation.

I am tryi

Answer 1

Just to add on the focussing errors, these may be detected by comparing the psf of the captured blurry images (wider) with reference ones (sharper). Deconvolution techniques may help correcting them but leaving artificial errors (shadows, rippling, ...). A light field camera can help refocusing to any depth planes since it captures the angular information besides the traditional spatial ones of the scene.