why is 60fps @ 1280x480 with TWO cameras hard ?  of course my goal isnt to make each cam run with 120fps but to make the table work with an overall 640x480 @ 60fps. im using the latest CL driver from AlexP.

the_goat - 17 April 2010 02:44 AM

why is 60fps @ 1280x480 with TWO cameras hard ?  of course my goal isnt to make each cam run with 120fps but to make the table work with an overall 640x480 @ 60fps. im using the latest CL driver from AlexP.

OK, you’re right, it doesn’t should be a problem . I checked on my computer(dual core2 2,3 GHZ) 1280x480 at 60 fps and it worked. But under Windows XP. So i don’t know whats the problem on your machine.

so you are also using two ps3 cams ? what is your screen size and which fps / resolution are you using?

sloopidoopi - 17 April 2010 08:01 AM

the_goat - 17 April 2010 02:44 AM

why is 60fps @ 1280x480 with TWO cameras hard ?  of course my goal isnt to make each cam run with 120fps but to make the table work with an overall 640x480 @ 60fps. im using the latest CL driver from AlexP.

OK, you’re right, it doesn’t should be a problem . I checked on my computer(dual core2 2,3 GHZ) 1280x480 at 60 fps and it worked. But under Windows XP. So i don’t know whats the problem on your machine.

OOps, sorry i made a mistake. I only get 15-20 FPS . 

same with me. so is it possible to run two ps3 cams like that ...@ alex ?

Why O why 2 cams. Is your screen to big. I have 1 Cam and have à screensize of 100 x 70cm the cam is 80 cm from the screen and it works super.

max. distance to screen is 60cm and afaik it wasnt possible to cover my screen (105cmx70) - also for smoother tracking i was told that i should use two cameras…

what is your fps / resoultion for your screen?

I use 1 ps3 cam. 640x480 and 30 fps (on à old pentium 4) 60 fps on my Hp xw9600 workstation. Both setup works great.

@rogier
could you please post your CCV config file ? if i understood correctly it should be:

W:1280
H:480
30fps

Sorry but I am not at the office. Monday I am at the office. But I only use 1 cam at 640x480. Monday I will send you the file.

You should not be modifying cameras.xml file by hand. The camera images are simply stitched width-wise by the PS3Eye CCV input component. This is done before CCV even sees the camera video data.

To stitch two cameras @ VGA you would set:

<WIDTH>1280</WIDTH>
<HEIGHT>480</HEIGHT>
<FRAMERATE>60</FRAMERATE>

To stitch two cameras @ QVGA you would set:

<WIDTH>640</WIDTH>
<HEIGHT>240</HEIGHT>
<FRAMERATE>60</FRAMERATE>

There is no frame doubling of any sorts. The images are simply stitched at the current frame rate.
The CCV consumes significant amount of CPU if not setup correctly, so play with the settings and use minimal amount of filters if possible.
Also use mini-mode when running a tracker. Image rendering in CCV is unnecessary once all is setup.
For more details, if you are a C/C++ programmer, you can look at the CCV source code.
Also if possible don’t use any gain settings. This introduces (amplify) sensor noise to the camera image.

AlexP

not working =(

please have a look:

i have 10x USB 2.0 ports, tried different ports for each cam (front & back)…

From the look at your older video i would strongly recommend to use a blur setting of max 12. (I always use 4-8, or make the Camera image less sharp with defocusing the objective).  The Blur filter is the main CPU Killer! So with less Blur you could decrease the threshold and the other settings . As AlexP recommends: Less is more

Try a single camera and see what you get.

He coffegod what kind of computer did you use. Was it a prefab or did you have to make it from parts?