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[jitter] cv.jit tracking - LED's

yair reshef yair99 at gmail.com
Thu Jan 3 07:03:46 MST 2008


to diffuse the leds light, you can put it inside a ping pong ball. or take a
sanding paper and slightly scratch the leds surface. i also did experiments
with crystal ("fake diamonds") glued to the end of the  led for better
refraction. or you can go and buy extra wide angle leds.
in jit.cv there are several objects to choke or expand blobs.
but i think what your trying to do is create a big source (3leds) and a
smaller one. yes?
for multi blob tracking i suggest u don't use centroids but instead cv.
label>cv.sort.



On Jan 3, 2008 2:10 PM, Stuart Binns <spbinns at hotmail.com> wrote:

>
> Dear all -
>
> i have made a patch that tracks two LEDs and displays the location of the
> LED's in a window. I have been able to output the x and y coordinates for
> each blob (I'm using cv.jit.blobs.centroids so that the loargest blob will
> be Blob 2 and the second largest blob will be Blob 2.
>
> I am using 4 LED's in total;  1 LED by itself and the 3 other packed
> together in a triangle formation. To stop the patch seeing there 3 LED's as
> 3 objects, is there a way I can make these 3 LED's appear as one big LED -
> can you refract the light using some type of liquid (clear glue?) put over
> all 3 LED's?
>
> Regards
>
> Stuart
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