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back to article Boffins build gesture recognition using WiFi

Skip the sensors, skip the cameras: if you watch the signals closely enough, you can build gesture recognition using only WiFi signals. That's what's just emerged from the University of Washington, where computer scientists say their WiSee technology can accurately recognise 94 percent of gestures from a sample of 900. They also …

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Anonymous Coward

Re: Gesture me THIS

That'd be the digitus impudicus ...

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Re: Gesture me THIS

Eadon:

I think it is the same as the CTRL-ALT-BackSpace gesture that the Linux users use ;-) It is usually followed by the vocalisation "Oh FFS".

The detection of the "Oh FFS" is much easier than than flailing of arms and the kicking of anything inanimate.

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Re: Gesture me THIS

>The detection of the "Oh FFS" is much easier than than flailing of arms and the kicking of anything inanimate.

Unless you routinely throw chairs.....

Where's the Ballmerstein icon?

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Childcatcher

Re: Gesture me THIS

Does anyone see the elephant in the room. If this actually works and at a distance you will be able to probe what the people next door are doing! And so on.

My God. What happened to privacy?

Just how dangerous is this technology?

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Angel

Mandatory

... but meant that you had to sit infuriatingly still if you wanted to keep listening to the same program.

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FAIL

Two weak spots

1)

"You always perform a startup sequence of gestures to get into the control system before sending the real gesture commands. The startup squence (sic) could be relatively long so false positives become rare cases. Such a startup sequence can also serve as your personal password."

There is no way to see you entered the RIGHT startup sequence before you send the commands, in particular if you are not in the same room as the WiSee enabled Wi-Fi router.

2)

"WiSee technology uses multiple antennas to focus on one user to detect the person's gesture."

There is no way to track a person.

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Silver badge

Re: Two weak spots

Um... yes there is. It's called Radar and it's over 100 years old. Use of radio waves to track objects? What does a router emit? Oh look there's your answer!

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Re: Two weak spots

@Graham Dawson

Please, do not compare the WiSee technology, impressive as it is, with a modern radar system like that of the S-300.

http://en.wikipedia.org/wiki/S-300_%28missile%29

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Anonymous Coward

Start up gesture sequence...

I wonder if the start up gesture sequence is configurable....

"OK, what do I have to do to get its attention?"

"Pretty simple, really: it's just a jump to the left, then a step to the right...."

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Anonymous Coward

Reg video still doesn't work in chrome

Anyone have a youtube link?

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JDX
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Re: Reg video still doesn't work in chrome

Yes it does, and always has done for me.

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Re: Reg video still doesn't work in chrome

Depends what you mean by doesn't work. In both IE and Chrome I can see the video window, I can click on the play button and then all I see is the swirly animated gif that looks as though the video is being downloaded but it never arrives.

Or don't you see anything at all ?

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Anonymous Coward

@Khaptain (Re: Reg video still doesn't work in chrome)

Same here.

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Anonymous Coward

Re: @Khaptain (Reg video still doesn't work in chrome)

Aha! Found the problem:

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

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JDX
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Re: @Khaptain (Reg video still doesn't work in chrome)

Videos often stop working when Chrome gets out of date with the newest version, not sure if that's due to technical reasons or Chrome deliberately breaking so I'll update.

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Holmes

Spying

So we need a wifi absorbent material made for new clothes to prevent tracking

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Happy

Re: Spying

You may be interested in my pattern for brillo-pad underwear?

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Re: Spying

I tried wearing some of those. They're very good for getting rid of any annoying skin conditions.

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Unhappy

CS doctoral candidate invents phased array doppler radar.

Cutting edge stuff.

In the 1940s.

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Re: CS doctoral candidate invents phased array doppler radar.

Try "CS doctoral candidate builds phased array doppler radar capable of tracking and identifying small movements of multiple targets from consumer-grade electronics already widely available in homes, for consumer use". That's rather a different story, and merits attention, even if (like me) you have no personal interest in gesture control of home appliances. (If I wanted to control my entertainment system by waving my hands about, I'd be an orchestra conductor.)

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Thumb Down

Why would one ever want to do this?

We have enough annoyance leaping up and down to trigger the motion-activated lights when it's dark at work.

"Gesture recognition using WiFi" looks too much like a solution looking for a problem.

[/luddite]

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Meh

Passive Radar

It reminds me of passive radar, in that it uses the interractions of an object with radio waves of other systems.

Personally, I feel a bit of a knob interacting with tech by waving my arms and speaking loudly and clearly to it..... It's all a bit like ordering food at a restaurant when away on holiday. What is wrong with keyboard shortcuts?

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Coat

Security?

Could this be used to replace passwords with interpretive dance?

It would be interesting to see an office full of people strutting their funky stuff every morning when attempting to login.

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Re: Security?

Your default password will be the ancient dance of my ancestors.

It goes: Aga do do do, push pineapple, shake the tree.

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Facepalm

Re: Security?

Marginally less terrible than that fucking birdy song.

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Gesture

Is "gesture" what used to be know as "movement" last year

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Childcatcher

Why bother?

Is this an effort to replace inertial sensors? They already do this and do it well. Plus, they do not rely on outside signals to work. There might be a problem in microgravity environments, but if you happen to be in one of those, perhaps you should fork over the cash to have a Microsoft Connect brought up.

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