Thursday, July 2, 2015

Super resolution forensic video analysis deblur, deblurring enhancement

Security footage can be enhanced by several different techniques to reveal information that would at first glance seem impossible to retrieve. 
It was most famously used in blurry helicopter footage of the LA riots to convict those who beat Reginald Denny, as referred to in this summary on slide 17, (and this article)
It was used to find the Boston bombing suspect:



See some examples of image enhancement at: http://ampedsoftware.com/samples

Moving car assembled from several frames - very brief video

Blurred licence plate

Blurred still shot corrected by trial and error


Impressive results in the last few seconds of the video.
https://en.m.wikipedia.org/wiki/Superresolution



In the courtroom, the jury needs to understand exactly what was done to enhance the video and the original video has to be authenticated and preserved. 

No comments:

Post a Comment

Search This Blog

Followers