I'm looking forward to the first theremin app.
I assume it would be impossible because the sound of the music would interfere with the sonar?
Wouldn't the music only be on the audible spectrum? Sonar works (can work?) on the inaudible spectrum.
FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
51–60 of 126 posts
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#52Earlier quoted context omitted.
No he means implicitly. By not providing everything the academic implicitly requests a conversation before providing everything. The request is never stated but is implied by the assumption that there is no other way to acquire everything.
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If you're reading the paper you're aware of their existence. If you want to know more, you have to ask them, but they never directly (explicit) state this. It's implied and something of a cultural (academic/research culture) unwritten rule.
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#53Earlier quoted context omitted.
Sorry, I'm not sure how this is relevant or if this sentence even makes sense. Can you explain?
I suppose he means that a small microphone/speaker setup near an ATM machine's keypad could allow you to track the position of the finger and get the corresponding keypresses without any intrusive modification to the ATM itself. Of course that would only be valid if you proceed to then steal the person's card right afterward, so all in all, not that useful.
Isn't it easier to just put up a small camera? Then you can also record the card's number if you fail to steal it afterwards.
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#54I work with sonar and the physical positioning of the sensors is important in trying to get useful results. Why is it these academic types don't release the apks or software? Just publications and maybe a video.
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Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#55I wonder how accurate it really is. The demo video didn't match up with the movements at all and the on-screen drawings looked like prerecorded video that they were trying to sync to. It's a neat idea, but without a dedicated component or an extremely high-speed RTOS, you're not going to come close to the level accuracy that's really needed to do the math and still allow interaction. I don't mean to rain on the parad…
To me it looked like a ton (two seconds or so) of latency, not pre-recorded video.
And I would expect latency for such heavy DSP work on a phone.
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#56Earlier quoted context omitted.
If the tech is great then wonderful, but I still remember LeapMotion...
Have you tried the Orion SDK? It's an order of magnitude improvement in tracking accuracy, even with the older hardware. https://developer.leapmotion.com/orion
I tried the "massive improvement" they released before Orion and it was still terrible.
Only so many times a company can say they've got their issues ironed out before I stop believing them.
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#57There has been a lot of recent work with gesture based computing: Intel Real Sense, Google's Soli, Myo, Leap Motion
https://github.com/melling/ErgonomicNotes/blob/master/README...
Leap Motion made huge improvements a few weeks ago with their Orion SDK:
http://venturebeat.com/2016/03/04/leap-motions-hyper-accurat...
We must be close to actually getting something basic for our desktops.
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#58Similar to SixthSense [1] work from Media Lab.
[1] https://www.media.mit.edu/research/highlights/sixthsense-wea...
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#59I can understand the "I", but what's the "O" part of this?
Re: FingerIO: Using Active Sonar for Fine-Grained Finger Tracking
#60Earlier quoted context omitted.
Have you tried the Orion SDK? It's an order of magnitude improvement in tracking accuracy, even with the older hardware. https://developer.leapmotion.com/orion
I tried the "massive improvement" they released before Orion and it was still terrible. Only so many times a company can say they've got their issues ironed out before I stop believing them.
Orion really is quite impressive. I tried the improvement as well. Orion actually works.