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Document Type: Tutorial
NI Supported: Yes
Publish Date: Sep 6, 2006

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Sequence

3 ratings | 2.33 out of 5
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Table of Contents

  1. Description
  2. Common Applications
  3. What To Expect

Description

A sequence is a multibuffer acquisition mode that permits acquisition of a predefined number of images. You can configure a sequence to acquire every frame or to skip a predefined number of frames between each acquired image in the sequence.

Basic steps in programming a sequence are as follows:
  • Initialize the interface
  • Allocate and configure a list of buffers that will contain the results of a single acquisition of a series of image frames
  • Process and/or display the acquired images. In some environments, you may display all the acquired images in a browser window
  • Close the image acquisition session and free the memory allocated during the acquisition

    Common Applications

A sequence is useful for applications which need to capture a single event. Processing can be delayed until after the acquisition is complete. The acquisitions are often triggered by an external event. Examples include observing license plates of cars going through toll plazas, following the trajectory of a projectile, or capturing the response of a biological specimen to a stimulus.

What To Expect


Acquisition and display of a continuous or periodically sampled series of images.
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This tutorial (this "tutorial") was developed by National Instruments ("NI"). Although technical support of this tutorial may be made available by National Instruments, the content in this tutorial may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this content with each new revision of related products and drivers. THIS TUTORIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).