Manual

Table Of Contents

DobotVisionStudio User Guide

• Scale Range: it means scale changing range when comparing the target and created

template. If you want to search the target with same scale changing, and then you need to set

respectively, and the default range is 1.0 to 1.0.

(2) Advanced Parameters

• Max. Overlap Threshold: when searching for multiple targets, two detected targets

overlapping with each other, and the maximum overlap ratio allowed by the matching frames is

overlap threshold. The larger the value, the greater the degree of overlapping between the two targets.

The range is 0° to 100° and it is 50 by default.

• Sort:

- Sort by score in descending order: sorted by the score of the feature match in

descending order.

- Sort by angle in descending order: in descending order of relative angular deviation

in the current result.

- Sort by X from small to large: the current result has the X coordinate of the matching

box center. According to the X coordinate, the order is rounded up from small to

large. When the X coordinates are the same, then is sorted by Y from big to small,

and the Y axis has the same operation with X axis.

- X is from small to large, and Y is from small to large too: the current result has the

matching box center X/Y coordinates. According to the X coordinate, the order is

rounded up from small to large. When the X coordinates are the same, then the order

is sorted according to Y from small to large.

• Threshold Type:

- - Automatic threshold: it automatically determines the threshold parameter according

to the target image.

- - Template threshold: it uses the contrast threshold of the template as the contrast

threshold in matching phase.

- - Manual threshold: it uses the threshold set by the user as the threshold parameter

for searching.

• Clutter Considered: If mottle considered is enabled, the algorithm will consider the mottle

feature. If the feature has burrs, the score will decrease.

• Extension Threshold: it is the ratio that the portion of missing feature compared with the

complete feature when the image is incompletely displayed at the edge of the image. When the

searched target appears in the edge of the image, the extension threshold can make sure the image

is found. As long as the value of setting extension threshold is larger than 30, it is guaranteed that

the top target graph can be searched.

• Timeout Control: When the time exceeds the time set by the overtime control, the search

will stop and no search result will be returned. The value range of overtime control is 0 ms to 10000

ms, and 0 means that the overtime control is disabled.

• Contour Enabled: if contour enabled is enabled, the contour feature points of the template

are displayed. If it is disabled, the feature points are not displayed, and only the matching frame is

displayed, which can reduce operation time.