This BBC News-featured Video of the Trainspotter...

[jonnylarge]

Since it was featured on the news tonight (Friday 14th May) I've just spent some time watching it on YouTube. The clip shows the real-time footage, then a slow-motion version.

I'm not a video codec expert by any means, so I was wondering how the frames in the slow motion clip are so much clearer than those in the real-time version (I was quickly pause-playing the real-time part to see how close the train actually got and the results weren't very good!)?

The clip:

http://www.youtube.com/watch?v=7PY4xg17XmY

[tonyvid]

jonnylarge said:

Since it was featured on the news tonight (Friday 14th May) I've just spent some time watching it on YouTube. The clip shows the real-time footage, then a slow-motion version.

I'm not a video codec expert by any means, so I was wondering how the frames in the slow motion clip are so much clearer than those in the real-time version (I was quickly pause-playing the real-time part to see how close the train actually got and the results weren't very good!)?

The clip:

http://www.youtube.com/watch?v=7PY4xg17XmY

I can't see that here but did see it on the telly - what a muppet!

The issue with the frames is probably down to camera phones that shoot 30fps that then gets put on youtube as some weird de-interlaced format which mashes all those frames together, the person who slo-mowed the original footage stetches those frames out so they become effectivly become single frames again...and sharper.