Also in this playlist...
This transcript is automatically generated
-- is using special facial recognition software as it pours over hundreds.
And perhaps more of photographs and surveillance tapes trying to identify the person or people.
Responsible for this attack.
The sophisticated technology may be the most powerful tool they have to help put a name to a face Trace Gallagher live out west this -- -- a look at how it works Trace.
And while the debate goes on make -- about whether or not to release this surveillance pictures of potential suspects we can tell you authorities are saying that they are quote.
Pretty clear of the man's face pretty compelling stuff they say.
And it appears to be a younger man to let me show you how this facial recognition technology works.
It's all about measuring the facial feature for example the eye socket debt.
The distance between the eyes the nose where it.
And the jaw line length they take all these numbers and they come up with what they call a numerical code or -- facial -- Not as precise as a fingerprint but still very very close the better the picture clearly the better the chance they have of matching it now.
What happens is in most cases with that we used an intern the show this video.
And if you're just trying to identified to make sure the person is -- they say they are the process is simple you take that person's driver's license and another picture of them use their facial code.
And then you match them up bingo.
But in the case of the Boston suspects what's gonna happen is.
They need to run those suspects facial features through a database the Department of Motor Vehicles passports.
A -- Internet pictures and the like to try to come up with the code to try to match them.
And then what happens says they use this come back to the white board here.
Each potential match is given a score so out of all the database.
They give you -- score when they gamble was several matches the higher the score the closer the match and that's -- begin the process of elimination they're almost always using 3-D software now Megan.
But sometimes they're using skin texture as well.
To come up with a match on the as the technology has come leaps and bounds in recent years and of course if they decide eventually to release.
These surveillance pictures to the public -- have millions.
Of detectives that can help them with their facial recognition to maybe put a face to the suspect.
While that is fascinating we're gonna have much much more on that with investigators.
In just a bit right here -- thank you.
Filter by section