Will's blog   [home | blog home]  Wed, 20 Jun 2007     More
after the break...  First thing I did was put all the pictures
that had no EXIF information to the side. There weren't many of
them and I don't see any way to batch process them.  We're now
left with 1000+ pictures all of which have EXIF information that
we can work with. Interesting properties of the problem:    1.
all of the pictures have DateTimeOriginal and SerialNumber
headers in the EXIF data   2. pictures from a single camera have
a consistent timeline in the sense that if picture 2 from camera
A comes before picture 3 from camera A by 14 seconds, then
that's what happened   3. the time from all the pictures from
camera A are a constant offset from all the pictures from camera
B  This is all pretty obvious and there's nothing exciting here,
but it does reduce the problem to picking a camera as a baseline
and then figuring out how far off in seconds and minutes the
other cameras are from the baseline. That's pretty easy.  First
thing I do is ge