Re: Frame rate problem

Hi
 
     Sometimes the driver sets a default framerate (less than the max framerate 
30fps) to maybe 10fps. I also have a usb logitech camera but Im using linux and 
I can set the framerate using the driver PWC. So, it maybe be a problem with 
the driver, then check if there is an application to configure your framerate.
 
 Or you can try set it, with Opencv with Highgui lib with the function:
 
 cvSetCaptureProperty(frame, CV_CAP_PROP_FPS, 30);
 
 hope this help

guigui_3d <guigui_3d@xxxxxxxx> wrote:    Hi,
 
 I'm actually using OpenCv on a Xp pro / AMD 3200+ plateform, with a 
 30fps-usb-logitech webcam.
 
 I use CvCam callback system to capture the frames but the I never get 
 more than 9 fps, and sometimes even only 6fps (I only count captured 
 frames and return form the callback).
 
 So my question is: 
 
 Are usb cams so poor, and 9fps a normal frame rate for my config, or 
 do I have to fix any software-thing to increase my framerate?
 
 Could I get better results using a 30$ USB/PCI card?
 
 (Motherborad: Asus's A8NE (nvidia nforce4 chipset)) 
 
 Thanks :)
 
 
 
 
     

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