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Hy,
I put three optitracks on my computer on one port. For facial motion tracking I need several markers to track.
The images I've got are distorted. Some parts of the image are missing. I think because of the slow USB-Port. More cameras I use on one usb port, more distortion I've got.
Is there any possibility start the camera with 60 fps, so that there is enough time to send the data over the usb port? Because only grabbing every 60fps does not do the job.

Hope for help
Frank

quote:Originally posted by dog:
Hy,
I put three optitracks on my computer on one port. For facial motion tracking I need several markers to track.
The images I've got are distorted. Some parts of the image are missing. I think because of the slow USB-Port. More cameras I use on one usb port, more distortion I've got.
Is there any possibility start the camera with 60 fps, so that there is enough time to send the data over the usb port? Because only grabbing every 60fps does not do the job.

Hope for help
FrankFor best performance, we recommend plugging each OptiTrack into seperate USB ports and avoiding the use of USB Hubs. It is not possible to reduce the frame rate of the OptiTrack 3 cameras, however you could try only processing every other frame that is delivered from each camera. You may also want to reduce the rate at which the camera view is rendered, this should result in lower system load and help improve performance.

[ August 17, 2006, 12:22 PM: Message edited by: NaturalPoint - Birch Zimmer ]