Sunday, 3 May, 2009 § Leave 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.
Monday, 1 September, 2008 § 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. « Read the rest of this entry »
Wednesday, 28 May, 2008 § 1 Comment
For the past few weeks i’ve been doing my research into multitouch, and the various types of cameras used by people over at NUIGroup.com, as their IR sensors. I narrowed my choice to 2 the Phillips SPC900-NC and the Xbox360 Live Vision Camera. By seeing a few tests Daddyoli did and and the recommendation of the Xbox360 Vision Cam given to me by both Daddyoli and Fairlane. I went with the Xbox360 Live Vision Camera.
I purchased it for just over $13CAD from an excellent seller at ebay. For $13 the camera proved to be well worth the money. And the IR filter was easily removed. Below are the steps i performed to get the camera to work in an FTIR setup. (Basically its the removal of the IR Filter).