Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air • Hacker News Board

Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#1

Post by iambrandonn » Tue, Oct 02, 2012, 4:04 AM UTC

Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air
github.com

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#2

Post by tomasien » Tue, Oct 02, 2012, 4:39 AM UTC

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#3

Post by tylerlh » Tue, Oct 02, 2012, 4:46 AM UTC

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Same issue, browser and hardware here. This is the error I see in my js console:

Uncaught Error: INDEX_SIZE_ERR: DOM Exception 1

Awesome idea and use of getUserMedia though.

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#4

Post by ecaroth » Tue, Oct 02, 2012, 4:47 AM UTC

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Didn't work for me either (on chrome). I kinda felt like a moron waving my hands around trying to get it to work. Would have been cool if the camera was doing a live capture and would let me watch my moronic movements after a while.

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#5

Post by treelovinhippie » Tue, Oct 02, 2012, 5:23 AM UTC

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Worked for me after a refresh. A little buggy, but very cool. Imagine putting this on audio/video playlists for a simple skip feature.

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#6

Post by hunterowens » Tue, Oct 02, 2012, 5:33 AM UTC

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Didn't work for me either on MacBook Air and Chrome 22.0.1229.79.

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#7

Post by kevingadd » Tue, Oct 02, 2012, 5:35 AM UTC

tylerlh wrote: post #3

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Same issue, browser and hardware here. This is the error I see in my js console: Uncaught Error: INDEX_SIZE_ERR: DOM Exception 1 Awesome idea and use of getUserMedia though.

Same problem here.

For a demo like this where failures can be caused by user error instead of app error, you should consider overlaying a tiny rectangle on screen that shows the webcam captured frames with an overlay of the recognition, so it's easier to tell if it's user error.

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#8

Post by nirmal » Tue, Oct 02, 2012, 5:36 AM UTC

tylerlh wrote: post #3

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Same issue, browser and hardware here. This is the error I see in my js console: Uncaught Error: INDEX_SIZE_ERR: DOM Exception 1 Awesome idea and use of getUserMedia though.

Same error MacBook Air and Chrome 23.0.1271.10 dev

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#9

Post by samstave » Tue, Oct 02, 2012, 5:39 AM UTC

Question: how could this be exploited to provide unknowing access to a webcams via modifying this .js to run on a subjectively trusted page?

Forgive me if I am being naive but just curious if this could be turned into something that accesses my webcam nefariously?

Anyone on HN willing to test if this is possible?

Re: Show HN: WebcamSwiper - a JS library that watches for hand swipes in the air

#10

Post by colmvp » Tue, Oct 02, 2012, 5:46 AM UTC

tomasien wrote: post #2

Cool idea! Demo didn't work for me on latest version of Chrome and a brand new MacBook Air though, and gave it a pretty good shot. I'm sure you didn't put this up without testing that it works, just didn't work after about 3-5 minutes of trying everything for me.

Same, using 22.0.1229.79 on Mountain Lion.