User`s guide

2 Introduction
2-8
• Installing any software drivers required by the frame grabber. These are supplied by
the device vendor.
• Connecting the camera, or other image acquisition device, to a connector on the frame
grabber
• Verifying that the camera is working properly by running the application software
that came with the frame grabber and viewing a live video stream
Setting Up Generic Windows Video Acquisition Devices
IEEE 1394 (FireWire) and generic Windows video acquisition devices that use Windows
Driver Model (WDM) or Video for Windows (VFW) device drivers typically require less
setup. Plug the device into the USB or IEEE 1394 (FireWire) port on your computer and
install the device driver provided by the vendor.
Setting Up DCAM Devices
If you intend to access a DCAM-compliant IEEE 1394 (FireWire) camera, you must
install and configure the Carnegie Mellon University (CMU) DCAM driver. The toolbox
is not compatible with any other vendor-supplied driver, even if the driver is DCAM
compliant. See “Installing the CMU DCAM Driver on Windows” on page 16-10 for
more information.
Resetting Your Image Acquisition Hardware
To return MATLAB and your image acquisition hardware to a known state, where no
image acquisition objects exist and the hardware is not configured, use the imaqreset
function.
If you connect another image acquisition device to your system after MATLAB is started,
you can use imaqreset to make the toolbox aware of the new hardware.
A Note About Frame Rates and Processing Speed
The frame rate describes how fast an image acquisition device provides data, typically
measured as frames per second.
Devices that support industry-standard video formats must provide frames at the rate
specified by the standard. For RS170 and NTSC, the standard dictates a frame rate of