Acquiring a sequence of images

1. Click File»Acquire Image. Vision Assistant displays the Acquisition Interface window and acquisition property pages.
2. Click the appropriate acquisition step. The Devices window displays all NI image acquisition devices and channels or ports available for the computer.
3. Select the device and channel or port you want to use to acquire an image.
4. Click Sequence Acquisition to view the Sequence Acquisition Wizard.
5. Set the following properties in the Sequence Acquisition Wizard:
   • Number of Frames—Number of frames you want to acquire.
   • Skip Count—Number of frames you want to skip between acquisitions.
   • Action—Triggering action. Select Disabled, Trigger start of acquisition, or Trigger each image.
   • Line—Physical trigger line.
   • Timeout—Time, in milliseconds, within which the trigger must occur.
   • Polarity—Edge of the signal at which the trigger occurs.

   For example, if you have a camera that acquires 30 frames per second (f/s) and you want to acquire an image every second until you acquire 10 images in the sequence, set Number of Frames to 10 and Skip Count to 29 (30 f/s–1 frame acquired in the sequence).

6. Click Next, Next, and Finish to complete the sequence acquisition. Vision Assistant sends acquired images to the Image Browser.
7. Process the images as you would any other image in Vision Assistant.

Note  Refer to the NI Vision Acquisition Software Release Notes for more information about configuring the NI image acquisition device.

Related Topics

Acquiring images in color

Grabbing an image (continuous image acquisition)

Image Acquisition in Vision Assistant

Snapping an image (single image acquisition)