8.6.1 Locate Tool: Input ParametersUse the Input parameters to configure how the tool analyzes an image.Figure 149. Locate Tool—Input ParametersNote that the Use as Reference parameter appears as an error until the reference point is set.ROIThe Region of Interest (ROI) is the user-defined group of pixels in the image that the sensor analyzes.Figure 150. ROI ParametersThe ROI is a line of pixels that can be shortened, lengthened, or widened as needed for the inspection. Tool analysisfollows the direction of the arrow. Set the width and the sample rate for the region of interest. The ROI automaticallydisplays on the Image pane when a tool is added.ROI WidthThe ROI width increases in increments of 4 pixels (for example, 1, 5, 9, 13, ...) up to the total FOV size.Note that:• Narrow ROIs execute faster but could miss the edge• Wide ROIs are more consistent but don't execute as fast• A wide ROI provides an average value/location, which results in improved repeatability• The ROI must be 13 pixels or wider to calculate the rotation of a part (Locate tool only)Sample RateThe sample rate sets the number of samples per pixels (one sample per pixel, two samples per pixel, etc.). Thesample rate determines the sub-pixel resolution, which increases the resolution of the tool, and increases theinspection time.Figure 151. 1 px Wide ROI Figure 152. 13 px Wide ROIVE Series Smart Camera88 www.bannerengineering.com - Tel: 763.544.3164
