Verifying Eye Witness Videos

40
e problem... Verifying eye witness videos Rick Turner

Transcript of Verifying Eye Witness Videos

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The problem...

Verifying eye witness videos

Rick Turner

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News outlets don't have a quick way to verify the eye-witness videos they receive.

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But the footage is just

too juicynot to air and share

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This leads to a lot of footagewhich is labelled 'unconfirmed'but gets broadcast anyway...

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An example:

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'Hamas using childrenas human shields'

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It has more than 100,000 viewsIt was widely shared on social mediaIt was shown by national news outlets

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But it wasn't reliable.The footage was shot in SyriaIt was shot it February

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How can we use

technologyto fix the issue?

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crowdsourcecredibility

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'Shazam'the scene

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Here's thetechnical bit...

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There are two typesof data in a video:media & meta-data

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meta-data

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meta-dataGPS informationmdtacom.apple.quicktime.location.ISO6709

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meta-dataChronological informationmdtacom.apple.quicktime.creationdate

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meta-dataDevice informationmdtacom.apple.quicktime.model

(An iPhone in these examples)

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media

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media SoundThe audio recorded

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mediaVideoThe frames recorded

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So we comparethe meta-dataacross the sources(there has to be more than one source for this to work)

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And matchor 'shazam'the audio & video

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Similarities in the audio and video of multiple videos are found automatically, and the videos are synced automatically.

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...so if key points in the video & audio analysis match up...

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...and all themeta-datamatches too

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...then the videosmust verifyeach other

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Some other(less depressing)possible uses

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Twitter!** follow @Rick_Turner �

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What if we could takeall of those thousands oftweeted photosfrom a sporting event

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work outwhere they were takenusing the same technique

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And take a virtual tour of

le tour

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on a virtual mapwith the same pixel and geolocation matching tech

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The possibilitiesare huge!

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Thanks �Rick Turner

@Rick_Orchard (no swears)

@Rick_Turner (lots of swears)

orchard.co.uk