Adept AdeptSight User Guide - Manual (Page 24)

Vision Overview
A vision system consists of some means of obtaining an image, and some means of proc-
essing that image.
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AdeptSight systems typically uses one or more cameras to capture images for proc-
essing. These images can be stored for later processing, if desired.
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Images are processed with AdeptSight vision tools. See Vision Tools on page 229.
This topic introduces some of the concepts and terms used in the other vision topics.
If you're new to vision guidance/inspection, you should read the section on Vision Basics,
starting with Vision Basics - Resolution on page 632.
Vision Devices
A vision device can be either a physical camera or an emulated camera. Vision devices are
added to the workspace as needed. You can have multiple vision devices in the workspace.
See Vision Devices on page 201.
Physical Camera
AdeptSight supports the following physical cameras:
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Basler 1394b
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Basler GigE
A physical camera needs to be calibrated, to establish the relationship between
physical distance in the camera's field of view and the pixels returned from the
camera. This type of calibration also helps correct for a certain amount of dis-
tortion in the lens. This calibration is covered in the section Standalone Camera
Calibration on page 207.
If the camera will be used with a robot and/or conveyor belt, the camera also
needs to be calibrated with respect to those devices. Those are separate cal-
ibrations, distinct from the relatively simple distance-pixel calibration. These cal-
ibrations are added as objects in the workspace. See AdeptSight Camera
Calibration Interview Wizard on page 75 .
The area that a camera can "see" is called its field of view (FOV).
Emulated Camera (emulation device)
An emulated camera is a collection of stored images that can be used as input,
via a virtual camera, to vision tools. Using an existing image, rather than taking
an image with a camera, can be useful when setting up a new system, or when
Vision Overview
AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012
Page 24