Adhesive Path Inspection - Segmentation

Operator Function

This operator measures whether the adhesive strip is broken, its width, height, and other parameters. It selects the input adhesive strip point cloud and outputs in global variables whether the adhesive strip meets requirements, width, and height information.

Note: The operator supports measuring ring-shaped, U-shaped single-connected adhesive paths. Before using the tool, appropriate downsampling can be applied to the adhesive path point cloud to improve detection efficiency

Parameter Introduction

Input Parameters

Parameter	Range	Default Value	Description	Illustration
Input Image	0-8	0	The IM number for image input

Calculation Parameters

Parameter	Range	Default Value	Description	Illustration
Use Region Parameter	true/false	false	If enabled, use Region as input; if disabled, use Input Image as input
Region	2D Window/2D Circular Window/2D Polygon Window/Box/Cylinder Box/Rotated Box/Point Set (Binding Only)	Box	Manually select appropriate ROI region Can bind to select existing ROI regions
Adhesive Path Loop	Open/Closed	Closed	Select the type of adhesive path loop to detect Open: As shown below, these are open adhesive paths where the path does not form a closed loop Closed: As shown below, these are closed adhesive paths where the path forms a closed loop
Step Length		1.000	Spacing for extracting width/height
Cutting Width		5.000	Set the cutting width perpendicular to the adhesive path, This value is half of the actual cutting value
Center Point			Only enabled when Adhesive Path Loop is Open. Set the position of the adhesive path center point. Generally, the selected point should have connections to the adhesive path arranged sequentially clockwise or counterclockwise Position: Input X, Y coordinates of center point
Contour Density	0.1-1	1.000	Set the density for extracting the outer contour of the adhesive path. The value ranges from 0.1-1. Typically, higher values result in denser extracted contours. Higher density provides more accurate measurements, but excessively dense point cloud outer contours can also affect measurement accuracy.
Minimum Adhesive Points		1000.000	Points exceeding this value are considered adhesive point cloud
Maximum Allowable Break Width		0.500	Set intervals exceeding this value as gaps Note: Only recognized as break when point cloud is separated by this length
Minimum Segmentation Points		50	Set segmentation regions below this value as breaks
Height Measurement	Minimum Height/Maximum Height	Maximum Height	Minimum Height: Set search height as minimum height in region Maximum Height: Set search height as maximum height in region
Minimum Width		0.100	Set the minimum width that meets requirements
Maximum Width		1.000	Set the maximum width that meets requirements
Judgment Mode	Any/Continuous	Any	Any: When any number of regional width values exceeds the set outlier count, judge as NG Continuous: When several consecutive regional width values exceed the set outlier count, judge as NG
Outlier Count		1	Set to judge as NG when number of outlier values exceeds this value
Minimum Height		0.100	Set the minimum height that meets requirements
Maximum Height		1.000	Set the maximum height that meets requirements
Judgment Mode	Any/Continuous	Any	Any: When any number of regional height values exceeds the set outlier count, judge as NG Continuous: When several consecutive regional height values exceed the set outlier count, judge as NG
Outlier Count		1	Set to judge as NG when number of outlier values exceeds this value
Projection Height		5.000	Set the height of the projection plane. The contour and width will be displayed on the plane at this height value. For example, if height h is set, the contour and width will be displayed on the Z=h plane. Note: When operator measurement values exceed the input range, red parameter values will be displayed at that measurement location
Resolution		0.200	Advanced parameter, downsamples input point cloud. Larger values result in faster processing but lower measurement accuracy. For better measurement results, set this value slightly larger than point spacing
Filter Size	3/5/7	5	Advanced parameter, affects skeleton extraction accuracy. Larger filter sizes result in more blurred skeleton extraction

Result Display

Parameter	Range	Default Value	Description	Illustration
Height Measurement Points	true/false	false	Height points of each region after adhesive path segmentation by step length, display in image if enabled
Height Measurement Point Connections	true/false	false	Connect height points of each region sequentially along adhesive path direction after segmentation by step length, display in image if enabled
Contour	true/false	false	Outer contour line of adhesive path, display in image if enabled
Width Measurement Line Segments	true/false	false	Width line segments of each region after adhesive path segmentation by step length, display in image if enabled
Width	true/false	false	Width values of each region after adhesive path segmentation by step length, display in image if enabled
Height	true/false	false	Height values of each region after adhesive path segmentation by step length, display in image if enabled
Break Information	true/false	false	Display Broken information at break locations when detected, display in image if enabled
ROI Point Set	true/false	false	Only effective when Use Region Parameter is enabled. ROI selected region point set, display in image if enabled

Output Parameters

Name	Type	Range	Description
Result	bool	true/false	true for success false for failure
Warning	bool	true/false	true indicates a warning false indicates none
Message	string		Output success, error, or warning messages. Empty if no error or warning
Time	float		Operator execution time, unit: ms
result	string		Output adhesive path inspection result
width	float[]		Output height values of each region after adhesive path segmentation by step length
height	float[]		Output width values of each region after adhesive path segmentation by step length

Tip

For more detailed explanations of parameter types, please refer to... (add link to parameter type introduction)...

Exception Troubleshooting

No.	Exception Information	Corresponding Parameter	Solution
1	Input region type is {0}, invalid region type	Region Type	Region input type must be one of: 2D Window/2D Circular Window/2D Polygon Window/Box/Cylinder Box/Rotated Box/Point Set
2	Region is empty		1. Check if selection is empty 2. Check if point set is empty
3	Input point cloud is empty		Confirm if IM contains valid points. If no valid points, load point cloud or switch to IM with valid points
4	Adhesive path not found		1. Check if minimum adhesive points is too small 2. Check if resolution is too large 3. Check if step length is suitable for point cloud 4. Check if cutting width is appropriate
5	Resolution too small		Appropriately increase resolution
6	Input adhesive path loop type is {0}, invalid adhesive path loop type	Adhesive Path Loop Type	Select adhesive path loop type as Open/Closed
7	Input height measurement mode is {0}, invalid height mode	Height Mode	Select height mode as Measure Maximum Height/Measure Minimum Height
8	Failed to segment boundary points		Appropriately increase contour density/increase maximum points
9	Input width judgment parameters invalid		Appropriately adjust width judgment parameters
10	Input width judgment mode is {0}, invalid width judgment mode	Width Judgment Mode	Select mode as Any/Continuous
11	Input height judgment parameters invalid		Appropriately adjust height judgment parameters
12	Input height judgment mode is {0}, invalid height judgment mode	Height Judgment Mode	Select mode as Any/Continuous
13	Input width judgment upper/lower limits invalid		Width judgment upper limit should be greater than or equal to lower limit
14	Input height judgment upper/lower limits invalid		Height judgment upper limit should be greater than or equal to lower limit
15	Input polygon vertex count is less than 3, cannot form polygon		Add 2D polygon window vertices so vertex count is at least three

Example Introduction

Engineering Design

1. Select Load Point Cloud tool to load the required Closed Adhesive Path point cloud image into IM0;

2. Select Load Point Cloud tool to load the required Open Adhesive Path point cloud image into IM1;

3. Select Adhesive Path Inspection - Segmentation tool.

Tool Usage

1. Select input image for operation. Image number must match IM number where image is located in project.

2. Either disable Use Region Parameter or enable Region and select region type as Box, then move box to target position to surround point cloud to be measured.

Usage Tips

1. Use ROI controller on image window to drag or scale box;
2. Directly modify box start or end coordinates in calculation parameters to adjust box position and size.

3. Set parameters.

4. Check desired display content in Result Display section.

5. Click Test to check if image window and parameters meet expectations.

6. If everything is correct, click Save, then run operator in run list. View results in corresponding IM.