Hello all together,
we searching for a USB cam working on Beagleboard. With normal webcams
the motion blur effect is too hard.
We work on a project with image recognition using openCV
The camera can cost up to ~ 250 € or 370 $. If possible we prefer a
wide-angle and or black & white cam.
thank you!
matze
Staying in the USB cam domain is going to restrict you severely. With that budget, you are in the lower-end (but with fairly acceptable quality, and easily meeting your criteria), of CCTV cameras. In fact, you might get IP CCTV cameras from folks like ACTi or other South-Asian brands. Those cameras typically have something like a 1/3" CCD sensor, with onboard WDR, and other fancy logic. Check out any surveillance cam online stores, and strike a deal.
You could try the Playstation Eye, they can do 120Hz which will help
with capturing motion. There are drivers available for the
BeagleBoard.
Dave <russelldm@gmail.com> writes:
You could try the Playstation Eye, they can do 120Hz which will help
with capturing motion. There are drivers available for the
BeagleBoard.
the ps eye works quite well so far and they can be had for less than 10
EUR from e.g. ebae.
a test on i386 laptop with 2.6.32 and modified driver as per [1] yields
very good results, especially latency is vanishing compared to a
quickcam. obviously, at higher frame rate rolling shutter effect is also
less noticeable.
on the beagle with 2.6.32 the situation is a bit different, as the
gspca_ov534 driver has seen some modifications in the oe kernel
version. i have not investigated the differences in detail but i seem to
be able to capture 60 Hz movies out of the box with ffmpeg [2].
in a sunny outdoor scenario, the camera seems to have problems with
overexposure. the microphone array is bulky but provides a 4 channel
alsa device. i have not yet cracked the shell to see how the mikes can
be separated from the opticks.
[1] http://wiki.tekkotsu.org/index.php/Sony_PlayStation_Eye_driver_install_instructions
[2] http://mechomaniac.com/node/32
thank you!!!
The overexposure problem is indicative that you're using the older
playstation eye drivers, I have done a few tests here [1]. I can
confirm that the opkg version is the unpatched version. [2] has
patches to provide control of the framerate and improves image quality
(such as auto exposure). I haven't had a chance to compile the patched
drivers for the BeagleBoard, but should be relatively trivial.
Dave
References:
[1] http://http://www.electronsonradio.com/?p=49
[2] http://kaswy.free.fr/?q=en
i am no able to get the patch working on the beagleboard. we even try
to compile the hole kernel new.
is there a tutorial or anyone who was able to get this working?
we are using beagleboard angstrom with a 2.6.32 kernel
thank you - the pseye cam works very fine with the ovc534