The webcam sees these shadows and sends the image to the tracking software which tracks the shadows as they move on the touch surface paper. All you need is a room with at least some light; a dark room will not work. Even room lighting gives the best results. Lights shinning from multiple directions onto the multitouch pad gives better results than lights from one direction. Did you make this project? Share it with us! I Made It! Remote Control Light Switch by alanmerritt in Arduino.
Reply Upvote. Getting it out wouldn't be the problem, but I don't know if I could get it back in without changing my set-up. Sometimes I can't help, but laugh at my lack of foresight. Thanks for the idea though :. BTW i'm so gonna make one of this! Reply 12 years ago on Introduction.
It's much better than the standard MTMini software. You always have the best inside information on Macs :D it has been added, and thanks for the update. And thank you for the great instructable, found my old and dead Mustek scanner with a dead laser, so i just must buy the cheapest webcam and build a MTScanner : I'm just using a mac and don't want to reboot every time i want to use my MTScanner.
And I've got an idea - project an image onto a paper that is placed onto the scanner's glass. Is it possible? It may be if you had a set up that would project it, but currently I know atleast the PC version uses the shadows so you 'd have to project light everywhere but where you wanted the image to think you were touching. I have actually been thinking about trying to adjust it to work with my new scanner without disabling the natural usage so I could scan my hands and use the printouts to control the computer, not very fast, but my offer unique control options.
I've read don't remember where that if you'll use a camera, that has no IR filter and put the leds at the border of the glass, so they light into the glass, the camera will see only the big white square with black fingers on it.
Yeah, it's possible, but usually only used with some of the larger Multi-Touch systems as far as I know. The process is called Frustrated Total Internal Reflection search for that or Multi-touch systems on the web and you should find something within the first couple of results explaining how it works, I was going to upload a picture but it was taking to long, I think my Internet is going to go down a gain soon I found the picture I wanted to upload half-way down this blog.
As far as your previous post with projection, that is definitely possible. I've seen a fair amount of white board based full-size Multi-Touch Systems on the web that actually have the full computer screen projected onto them from behind and use the light from it which is only reflected when it is touched to activate the optics. Yeah, trying to do it the second time was a lot harder, so I'm not sure if I just got really lucky the first time or what.
I was taking apart my lights so I could add some pictures of how I attached everything to the scanner, and how the switch worked and I ended up breaking nearly everthying trying to get it apart short of the glass. I don't know how thick that glass is, but it's pretty durable. I'm just glad that somebody else got this to work also, at least that means it can be replicated.
Oh and if what your talking about is the quality of the optics, you can try seperating the top from the bottom and putting something in there as a spacer to give it better picture, just make sure it is stable otherwise yours will end up broken too. I made an account just from seeing this project. Does anyone have a disassembly manual or even the idea of what are some of the components in it I really should salvage? Big thanks in advance. I love this website thank god I found it.
I would like to say thank you to everybody for the wonderful comments and feedback, I'm going to be reworking the Instructable on my computer to help improve it. Now that i finally have all the pieces again, I'm going to redo all the pictures, though most of the steps will stay the same.
If anyone has anything they want to see in the new and improved Instructable, just post it as a reply to this comment and I'll see what i can do for you.
Also, remember if anyone has any pictures they want to share, just pm me and I'll add them for you with your user name on the picture. Did you make this project? Regardless of size, most lenders, originators and lessors we know want to use their capital to create income - not spend it on expensive loan software! Group Created with Sketch. Easy to Use. Group 8 Created with Sketch. System Security.
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