Data Processing
Filtering
There is noise in the surface data. To increase the stability and accuracy of data, you can denoise the surface data before measurement.
The parameters of the Remove Noise from Surface Step are set as follows:
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Set Depth Difference Threshold to 0.200.
A proper threshold can effectively remove points with depth differences exceeding the threshold.
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Set Min Number of Points in a Class to 10000.
Since the bent plate is generally flat, most of the scanned data will cluster into one group, so a relatively large value needs to be set for this parameter.
After the Step is run, it will output the denoised surface data.
- Tuning experience
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The Remove Noise from Surface Step can effectively filter out noises with depths similar to the main data.
Extract Data from Thickness Measurement Region
During thickness measurement, the distance between corresponding points on the front and back sides of the bent plate needs to be calculated. Therefore, the measurement region should also be identified during preprocessing. Use the Process Surface by Filter Step to extract representative upper and lower surface data and remove other useless data.
In the parameter configuration panel of the Step, adjust the following parameters:
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Set Filter Type to Crop.
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Select the Use Feature Region option and adjust the region in the data visualization area to include the bump (Region1) of the bent plate. To reduce errors, add multiple regions near Region1.
Then, run the Step to obtain the cropped surface data.
Up to now, you have finished data processing.
Next, you can start measuring the thickness and dimensions of the bent plate.