usb camera.. frames per second

[bgtbgtbgt]

Hi

I use "NI_IMAQ_for_USB" to aquire image from usb camera, and I wish aquire 30 frames per second, but it can not achive 30 per second.

(Software of this camera can aquire 30 frames per second)

Can anyone please help?

Here is my vi...

Best regards
Robert

[xuzheng]

Hi Robert

I didn't see any faults from your code. I guess it is because of IMAQ for USB driver.

Each USB camera vendor develops their own driver to work with their camera. Since there is no industry-wide adopted standard, National Instruments cannot create a driver that works with all USB cameras. Based on this reason, NI-IMAQ for USB cameras is not an officially supported driver. Though you can download the driver from NI webpage, it is not acutally an NI official product and thus has not gone through the validation and verification process that other NI products go through. So maybe you can use it to grab image but cannot get the best performance of your camera.

NI AE Zheng

[Alpesh]

hi,

sometime it is happend with NI USB Driver. it is better to ask for labview drivers to ur camera vendor.

[xuzheng]

That's right, because USB camera vendors know better about their own products. Luminera and Sentech are two such camera manufacturers that have LabVIEW drivers for their USB cameras. However, these are actual industrial vision cameras that have all the features common to other industrial vision cameras, not necessarily designed for the cost-sensitive case.