Manual

Table Of Contents

DobotVisionStudio User Guide

128

• Circle Locating Sensitivity: it is used to eliminate the interference points. The larger the

value, the stronger the ability to eliminate noise interference, but it is also easy to cause the initial

location of circle failure.

• Distance to Remove: It means that the maximum pixel distance from the outlier to the fit

circle. The smaller the value, the more points are excluded.

• Initial Fit: It has two types, including global and partial fit.

- Partial:Local optimization is to fit the circle according to the local feature points. If

the local feature more accurately reflects the position of the circle, the local

optimization is adopted, otherwise the global optimization is adopted.

- Global: line fit with the found global feature points

• Fit Mode: It has three types, including least squares, huber and tukey. The three fitting

methods only have some differences in the calculation of weight. With the increase of the number

of outliers and the distance of outliers, the least squares, Huber and Tukey can be used step by step.

NOTE

 When you select Draw in the data input mode, the caliper box and the figure to be

found must intersect.

L2L, C2C Measure

In general, two lines are not absolutely parallel, thus line to line distance measurement is calculated

by the average distance from four end points of the line to another line. Distance of line to line

measurement is absolute distance, as shown below. The input mode and output results are described

here. The selecting method of data source of circle to circle measurement is the same as that of line

to line measurement.

L2L Measure Parameters

• Source Selection: select the source of data, including subscription and drawing. See L2C

Measurement for details.