Difused Illumination test
I tried out the diffused illumination method yesterday. Results were pretty encouraging - I got reliable touches without having to press hard like I did with the FTIR. Also you can use any part of your finger or hand to trigger it (or other objects such as a pointer or paintbrush..). I think this is the approach I will go with for the next table I build.
Labels: diffused illumination, multitouch, touchlib
posted by David Wallin at 8:54 AM
3 Comments:
Can you post an explanation or data points regarding the "diffused illumination" tests?
how were you able to feedback the negative areas. As in...the area below the glass is flooded with IR, and once the glass is touched there is blurry shadow, but no reaction. It seems that Touchlib is set to SEE IR and react upon the white results, how do you reverse that? react to the lack of white areas.
1: There are test .AVI's in the SVN.. I'll post them with the next set of binaries.
2: there's a new filter called 'invert' which flips the black and white values of an image.
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