Tracing child abusers: Where was this picture taken? [video]

#1

Post by cskau » Sat, Mar 23, 2019, 9:02 AM UTC

Tracing child abusers: Where was this picture taken? [video]
bbc.com

Re: Tracing child abusers: Where was this picture taken? [video]

#2

Post by Macuyiko » Sat, Mar 23, 2019, 12:31 PM UTC

Hopefully we'll come to a point soon where AI and deep learning can help out in this space. I remember models being trained that could predict the country based on a street view photo with a high degree of accuracy, which would be a good first step. The next one would be to either match a top-down satellite photo with a picture, or figure out a way to match street view photos based on similarity.

Given that Google actually has the data as well as the skills and computing power to help out Europol, I'd have hoped they'd be jumping at the opportunity to do so. At the least it would make for great PR, but perhaps they're afraid of the possible privacy issues and discussions as well (I can already see the headlines: "Google knows the location of any yard appearing in a photo!").

In any case, it's telling how humans are so good at this stuff and picking up on clues and patterns. It'll still take a while before machines are as good.

Re: Tracing child abusers: Where was this picture taken? [video]

#3

Post by LifeLiverTransp » Sat, Mar 23, 2019, 12:37 PM UTC

Should be solveable with a NN trained on Matching Google Streetview and the images..

Re: Tracing child abusers: Where was this picture taken? [video]

#4

Post by ekianjo » Sat, Mar 23, 2019, 1:07 PM UTC

LifeLiverTransp wrote: post #3

Should be solveable with a NN trained on Matching Google Streetview and the images..

Google Street View is limited to what you can see from the street. It would not work for several types of location.

Re: Tracing child abusers: Where was this picture taken? [video]

#5

Post by [deleted] » Sat, Mar 23, 2019, 1:09 PM UTC

LifeLiverTransp wrote: post #3

Should be solveable with a NN trained on Matching Google Streetview and the images..

[deleted]

Re: Tracing child abusers: Where was this picture taken? [video]

#6

Post by giarc » Sat, Mar 23, 2019, 1:12 PM UTC

ekianjo wrote: post #4

LifeLiverTransp wrote: post #3

Should be solveable with a NN trained on Matching Google Streetview and the images..

Google Street View is limited to what you can see from the street. It would not work for several types of location.

Very true, but the article says there are 40 million images. Likely will work for a non-zero portion of the images.

Re: Tracing child abusers: Where was this picture taken? [video]

#7

Post by JeanMarcS » Sat, Mar 23, 2019, 1:18 PM UTC

If there can be a first sort done by AI and then human contribution to try to narrow it better it might be helpfull.

Like « this picture seems to be located in this area/country » and then people from the area could have a look.

I’m pretty sure people would like to help.

Re: Tracing child abusers: Where was this picture taken? [video]

#8

Post by Snoozus » Sat, Mar 23, 2019, 1:25 PM UTC

Here the direct link to the picture database https://www.europol.europa.eu/stopchildabuse

Re: Tracing child abusers: Where was this picture taken? [video]

#9

Post by tyingq » Sat, Mar 23, 2019, 1:30 PM UTC

Some of the techniques a group on 4chan used are interesting: https://www.ign.com/boards/threads/remember-when-4chan-users...

Re: Tracing child abusers: Where was this picture taken? [video]

#10

Post by nothrabannosir » Sat, Mar 23, 2019, 1:31 PM UTC

Snoozus wrote: post #8

Here the direct link to the picture database https://www.europol.europa.eu/stopchildabuse

https://www.europol.europa.eu/sites/default/files/styles/eur...

That card looks like a pokemon card with a Google Chrome logo. Frustratingly familiar.