LED Sensing ~ BI-Directional LEDs Part – I Sunday, 3 May, 2009
Posted by Taha in Hardware, My Progress.Tags: bi-directional, concept, electronic, electrooptical, han, Hardware, IR, jeff, led, Leds, multi, Multi-touch, multitouch, natural user interface, nui, sensing, touch, Webcam
add a comment
In my quest to find other methods of input detection for multi-touch and multi-modal hardware i came across another technique made famous by Jeff Han it is the use of LED s as bi-directional sensors. This technique is in no means new, it know fact that LED s can behave in such a way that, they act as sensors, when they are reverse biased. The theory behind how this all works is explained below.
A brief Comparison Between Xbox360 Vision Cam Vs Philips SPC900NC Monday, 1 September, 2008
Posted by Taha in General, Hardware, Webcam.Tags: cam, Camera, Hardware, microsoft, philips, vision, vision cam, Webcam, xbox, xbox 360, xbox360
2 comments
On the surface at first the the xbox360 cam looks great and works well in an MT scenario, it by far has the best IR sensitive CCD chip on borad, and performs extremely well in MT scenarios when used at 320×240 resolution, you can easily achieve 50+ fps. However where the camera lacks is in its 640×480 resolution range it barely does 17fps, usually it satys between 11~15fps and with that the cpu usage also skyrockets. (more…)
Quick Update Sunday, 3 August, 2008
Posted by Taha in General, Hardware, My Progress.Tags: Hardware, multitouch, update
3 comments
Hey guys i thought it was time that i showcased my low FTIR project since its nearly done, here are some pictures of my setup during the construction process, and its current state, a little information about it…
[b]Setup[/b]
Windows XP Pro SP3
Intel Core 2 T7200 2Gb RAM (IBM T60 ThinkPad)
ATI Mobility Radeon X1400 512mb
Microsoft XBox360 Live Vision Camera
Acrylic Surface, 80×60x0.8cm (31″x24″x0.32″)
IR Frame using U Channels
120 OSRAM SHF485
Toshiba TLP-651U (running at 1600×1200)
Box Dimensions, 90×90x65cm (WxLxH)
Well its time for pictures then…
