Forums > Jitter

camera recommendation motion tracking – active IR markers

September 29, 2007 | 3:08 pm

Can anyone recommend a camera in ~300 USD price range for smooth realtime tracking of a couple of active IR markers using cv.jit? Wide angle would also be a plus.

I was thinking of getting this model:

http://www.unibrain.com/Products/VisionImg/Fire_i_BC.htm

with a 107 deg wide angle lens, and perhaps also including an IR filter (ie a filter that bandpasses out non-IR wavelengths).

Any experiences using this firewire camera board with cv.jit?


September 29, 2007 | 5:50 pm

On 9/29/07, Phil Donahue wrote:
>
>
> Can anyone recommend a camera in ~300 USD price range for smooth realtime
> tracking of a couple of active IR markers using cv.jit? Wide angle would
> also be a plus.
>
> I was thinking of getting this model:
>
> http://www.unibrain.com/Products/VisionImg/Fire_i_BC.htm

thats a good one, i work with that and its fine

with a 107 deg wide angle lens, and perhaps also including an IR filter (ie
> a filter that bandpasses out non-IR wavelengths).

be carfull, some lens (like the the 2.1~ lens unibrain sells) have the
ANti-ir filter coated on the lens.

Any experiences using this firewire camera board with cv.jit?
>


September 30, 2007 | 2:28 am

Thanks very much for your reply.

I have used a track IR camera from Naturalpoint before and noticed how accurately and smoothly it can track for determining mouse cursor position:

http://www.naturalpoint.com/trackir/02-products/trackir-product-comparison.html

These cameras are supposed to have fps values of >100 (or ‘sample rate’ – same thing?). Is this a critical factor for smooth motion tracking? Or is resolution more important? I am worried that the unibrain running at 30 fps may not be smooth enough.


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