Thanks for sharing. I assume this is the key excerpt / portion you are alluding to:
"A cold case from Pennsylvania where the available video showed the suspected murderer, but not clearly. What seemed to be the victim, wrapped in a sheet in the passenger seat, was partially visible, but obscured by the driver.
Prosecutors refused to file charges in the case because the images were of poor quality. Investigators applied image averaging techniques to the video, and the image of the driver became very clear. Then, because the driver changed positions several times during the video, investigators were able to digitally remove his image and reveal a full view of the victim."
The big questions are: how bad was the video to start? and how good did they make it? Did you see / find any images referenced?
Image enhancement from everything we have seen has very limited capabilities. You can see a test of one software program in action.
Frame averaging techniques are one of the most useful for the Video Investigator. Static objects at night with compression noise and IR distortion can be cleaned very effectively in order to highlight specific characteristics in an object caight on camera.
Enhanced is 225 I frames extracted from a h264 video and then frame averaged.