Manual

Table Of Contents

DobotVisionStudio User Guide

• Location Mode: Fast location and high precision location can be selected, and the selection

basis refers to feature match.

• Scale Mode: it includes auto mode and manual mode. When its auto mode can meet

demands, it will not adjust. If not, it will switch to manual mode.

• Roughness scale: the higher the roughness scale parameter, the greater feature scale, and

its respective edge points will be sparse. But, in this way, it can speed up feature matching speed,

and the range is 1 to 20 by default. When the value is 1, it means the finest. After adjustment, the

contour point quantity will change, as shown below.

• Fine Scale: only supports the positioning mode of selecting high precision, which

represents the fine degree of extracted feature particles. It is less than or equal to the rough ness

scale, which is only an integer. When the fine scale value is 1, the fine degree is the largest, the

number of edge points is the largest, and the precision is the highest.

• Threshold Mode: when its auto mode can meet demands, it will not adjust. if not, it will

switch to manual mode.

• Contrast Threshold: it means the contrast value. It is related with feature points and gray

value of background. The larger the value, more feature points will be eliminated, and the range is

1 to 255 by default.

• Rotation Angle: It means the angle threshold between the mask and the image to be

detected. If the result is not successfully matched during modeling, it is recommended to increase

the rotation angle.

• Rotation Step: the range is 0.1 ° to 1 °, and it is recommended to use the defaulted value.

• Projection Interval: the range is 1 to 10. If the number of matching points detected during

modeling is small, it is recommended to increase the projection interval

• Mark Type: According to the selection of the tested image, when the image is a hollow

cross, the mark type selects a hollow cross in principle, vice versa.

Running Parameters

You can configure various parameters of the graphics positioning module and restrict the positioning

conditions, so as to better meet your needs.

(1) Basic Parameters

• Min. Match Score: the match score means the similarity between feature template and

target in searched images. It is also called as similarity threshold. Only when the target's similarity

reaches similarity threshold, it can be searched out. The max. value is 1 which means totally matched,

and it is 0.5 by default.

• Max. Match Number: it is the max. target quantity can be searched. It is 1 by default and

the range is 1 to 200.

• Match Polarity: polarity means the color transition from feature image to background.

When the edge polarity of the searched target does not match with feature template polarity, but you

want to make sure the target is searched, then you need to set match polarity as ignored. if not, you

can set as considered, and search time can be reduced.