Instruction
Manual
DataVS1
Series
17
Width
Control of the size of details
Edge
Counting
Counting of details along an edge
Pattern Count
Counting of patterns inside an area
Once the inspection tool has been selected, it is necessary to position and size the regions of interest
(ROI) to be monitored.
The meaning of the ROI varies according to the control tool selected. The chart below provides a
rough indication on the meanings. Please refer to Chapter 7 for further details.
Tool
ROI description
Brightness
This identifies the area within which the algorithm calculates the average
brightness value
Contrast
This identifies the portion of the field range within which the algorithm
calculates the maximum contrast value
Position
This identifies the area within which significant variations in brightness are
searched (edge
) and mainly distinguish the edges of details to be
inspected
Width
As in the case of position control, this defines the area within which the
algorithm searches the edges on the detail of which it is necessary to
measure the width
Edge Counting
This describes the area within which a search is made for edges (
)
which are then counted by the algorithm
Pattern Match
This defines the pattern (detail) to be searched within the whole focus
range
OCV
This describes the portion in which the device searches for the characters
to be monitored
Pattern Count
This describes the pattern (detail) to be counted within the whole focus
range
To modify the position of the ROI, move to the
Move ROI
icon and then press
SET
.
NOTE:
The procedure used to reposition and resize the ROI indicated herein can be applied to all
inspection tools available on the sensor. The only exceptions are the Pattern Match and Pattern Count
which require two inspection areas to be set and therefore have a specific procedure. Please refer to
Chapter 7.7 for further details.
It is now possible to move the ROI using the
ARROW
buttons. The coordinates (expressed in pixels)
of the top left hand corner of the ROI are displayed at the bottom of the screen. Once you have
