Can anyone explain how this works?

FelipeCortez · on July 23, 2012

I don't know for sure, but judging from the sequence shots, looks like it scans a pixel column depending corresponding to the part of the movie. If it's scanning a frame halfway of the movie, it will scan the pixel column in the middle of the frame.

lurker14 · on July 24, 2012

Basically, it's the equivalent of putting a monitor face down on a flatbed scanner, and scanning while the movie plays.

Or taking a photo of the screen with a very slow CMOS (camera phone) sensor.