Adept AdeptSight User Guide - Manual (Page 488)

Configuring Locator Properties - Advanced
with a higher value for the Detail Level.
l
To obtain high-accuracy object location, it is preferable to use images
with sharp edges and set the lowest coarseness value for the Detail
Level.
Tracking Inertia (0 - 1)
Increasing the Tracking Inertia can help close small gaps and connect contours
that would otherwise be broken into smaller sections.
Search Based On Outline Level Only
Search Based On Outline Level Only restricts the search to using only the Outline Level
source contours to search, recognize, and position object instances. Detail Level contours are
ignored completely.
Setting this to true can increase speed, with a possible loss of accuracy, and with the pos-
sibility of detecting false instances.
l An Outline-based search is useful for time-critical applications that do not require a
high-positioning accuracy, or that need only to check for presence/absence of objects.
l To be effective, this type of search requires clean runtime images that provide high-
contrast contours with little or no noise or clutter.
Contrast Polarity
Contrast Polarity defines the polarity change in grey-level values between an object and its
background. This polarity can be dark to light or light to dark. The reference polarity for an
object is defined by its Model. Polarity is always defined with respect to the initial polarity in
the image on which the Model was created.
Normal polarity
Searches only for object instances having the same object-to-background polar-
ity as the Model. For example, if the model is a dark object on a light back-
ground, the Locator searches only for dark objects on a light background.
Reverse
Restricts the Locator to search only for objects having a object-to-background
polarity that is inverse to that in the Model. For example, if the model is a dark
object on a light background, the Locator searches only for light objects on a
dark background.
AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012
Page 488