	Machine Vision Systems

Labeling

Recognizing the Measuring Block

When measuring the number of objects, the detected objects must be distinguished from other background information. Therefore, in our image processing system, the objects are binarized to distinguish them from photographed images and the connected pixels are recognized as a single block.

Labeling Flow

By using the color shade processing feature, the number of workpieces of different colors can be inspected.

Application Examples for Gravity Point Measurement

Center of Gravity

The center of gravity is the position where the labeled object can be supported. In the case of rectangular objects, the diagonal intersection is the center of gravity.

Measurement of Gravity Point

Measurable Regardless of Shape or Size of Workpiece

In the case of workpieces of a single color and simple shapes, e.g. round or square, the gravity point remains unchanged; even if there is variation in shape or size. In order to check the position of simply-shaped workpiece based on this fact, the gravity point must be measured in view of potential changes in shape or size. When actually measuring the gravity point, a label is placed on the image within the window. Then, the gravity point (X- and Y-coordinates) of the labeled object is measured.

Application

Position Measurement of Alignment Marks

Principal Axis Angle

When the labeled object is enclosed with an oval shape of minimum size, the longest line capable of being drawn within the oval is called the principal axis. The principal axis angle indicates the angle between the principle axis and a horizontal line.

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