Here is an article and email address of a visual hand gesture developer that might provide immediate feedback for the development of hand gestures suitable for the cell phone. They developed hand gesture recognition with 8 degrees of freedom. However, a reduced set may be more suitable for a cell phone because of the data processing limitations of a cell phone. Since this person already has developed hand gesture recognition, they might be able to provide the code to start with.
http://www.cs.toronto.edu/~smalik/downloads/2503_project_report.pdf James On Jun 11, 7:40 am, James <[EMAIL PROTECTED]> wrote: > Regarding using the camera as a touchpad. (the simplified version) > > With the left or right hand holding the cell phone, and presenting the > opposing hand in front of the camera, a key highlight (or ghost) would > mark the present key selected by the user. Moving the finger strongly > towards the camera [ d(area)/dt ] activates the action of that key. > > This allows for high resolution single finger entry of anything that > can be presented on the display (at least 640x480 camera resolution > with individually addressable pixels). > > So in the simplest version, the camera is just used as a one-finger > telephone touch-pad. > > James > > On Jun 9, 5:23 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > > > > > James, > > > That sounds good! > > > ... Do you know how much the different kinds of touch screens cost? > > > The change in "strongness of touch" could be recognized by fingerprint > > size, or rather d(fps)/dt > > > So what you are suggesting is within reach for all screens that return > > pressed area rather than just centroid location. > > > I don't know how much of that is accessible at high levels. > > > Ed > > > PS: I'm still chasing the waterproof, sandproof, wearout proof, > > dogproof, keyless phone. I would like for the screen to be less than > > $4. With great audio because the driver compensates for the > > nonlinearity of the inexpensive waterproof speaker. A decent > > accelerometer gets you there.... $15 plus the battery? > > > Anyway, I like the use model. > > > On Jun 9, 7:45 am, James <[EMAIL PROTECTED]> wrote: > > > > Android cell phones already come with a graphic user interface, the > > > touch screen. > > > >http://androidcommunity.com/first-live-images-of-fullscreen-android-d... > > > > But the problem is that a lot of keys need to fit on a small display. > > > > The good alternative would be a touch sensitive virtual keyboard > > > program that drags the keyboard focus around on the display and press > > > strongly on the key desired for entry. The buttons that scroll under > > > the users finger with a light touch would become larger and spread > > > apart to avoid pressing multiple buttons on the small display. And as > > > the finger scrolled past the button group it would become small and > > > provide visual reference of key location. > > > > This way, with only one finger the user could type messages without > > > any additional complexity. > > > > James > > > > On May 30, 4:07 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > > > > > Hey, > > > > > It is obvious for an inexpensive hand held device that a 26 cent > > > > accelerometer can behave as an edge sensitive touch screen with the > > > > addition of soft keys along each edge. Think "label each edge and have > > > > a translucent ball bearing that the user 'rolls' toward a key to press > > > > it." The ball bearing returns to center automatically when the rate of > > > > change of the angle of the acceleration vector is below some threshold > > > > and you're ready for the next key. > > > > > Kids can text with multiple strokes of 8 keys mostly because they get > > > > feedback from when they have the desired letter - so with feedback > > > > this will work very well. My best guess and current direction is soft > > > > keys arranged around the edge of the screen like the face of clock > > > > with 10 being '0', 11 being '*' and 12 being "#''. > > > > > What are you guys using? > > > > > This is touch screen like if the phone has a hard bump on the back of > > > > the case right behind the screen and soft bumps under the edges. After > > > > you learn with the phone on the desk you can learn to move the phone > > > > like that without the desk present. > > > > > Some have said, yes, this is an obvious idea, but a stupid one... > > > > Anyway how are others doing this for inexpensive phone applications. > > > > > ed- Hide quoted text - > > > > - Show quoted text -- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
