Parameter Adjustment for Point Cloud

3D Scanning

Tuning parameters under 3D Scanning can optimize the point cloud quality by optimizing the exposure. Please see 3D Scanning for details.

Point Cloud Processing

Tuning parameters under Point Cloud Processing can optimize the point cloud quality by optimizing the processing of the obtained data.

Cloud Smooth Mode

This parameter sets whether and how strongly the point cloud surface smoothing algorithm is applied. The options and descriptions are listed below.

Default: Normal

Hint

Intensity of smoothing: Off < Weak < Normal < Strong.

Option

Description

Off

Apply no smoothing algorithm to retain object details as much as possible.

Normal

Apply moderate smoothing. Balance between smoothness and detail preservation.

Weak

Apply weak smoothing. Keep more details and apply less smoothing.

Strong

Apply strong smoothing. Keep fewer details and apply more smoothing.

Cloud Outlier Filter Mode

This parameter sets whether and how strongly the point cloud outlier removal algorithm is applied. The options and descriptions are listed below.

Default: Normal

Hint

Intensity of outlier removal: Off < Weak < Normal.

Option

Description

Off

Apply no outlier removal. Keep all noise.

Weak

Apply weak outlier removal. Remove a small amount of noise. Produce more accurate and complete edges.

Normal

Apply outlier removal. Remove all noise detected. Mild edge erosion may occur.

Point Clouds under different intensities of outlier removal:

Off

Weak

Normal

../../../../../_images/outliers_removal_off_2.png
../../../../../_images/outliers_removal_weak_2.png
../../../../../_images/outliers_removal_normal_2.png
../../../../../_images/outliers_removal_off_3.png
../../../../../_images/outliers_removal_weak_3.png
../../../../../_images/outliers_removal_normal_3.png

Fringe Contrast Threshold

This parameter sets the signal contrast threshold for selecting valid pixels. Pixels with contrast less than this threshold will be ignored. A higher value means filtering more image noise but may remove point clouds of dark objects.

Default: 3

Usually, the default value 3 works well but you can increase the value for images with heavy noise.

Point clouds obtained with different values of Fringe Contrast Threshold:

3

15

30

../../../../../_images/signal_contrast_threshold_3.png
../../../../../_images/signal_contrast_threshold_15.png
../../../../../_images/signal_contrast_threshold_30.png

Hint

  • Usually, setting Cloud Smooth Mode and Cloud Outlier Filter Mode to Normal and setting Fringe Contrast Threshold to 3 will help obtain satisfactory point clouds.

  • If after tuning the parameters, the point cloud is still not satisfactory, please save the raw data of the camera and save the images via File ‣ Save Raw Data of Camera and File ‣ Save Images, and contact the support team.

Depth Range

The upper limit and the lower limit of depth range are to set the interested range of depth on the depth map and ignore the parts of the depth map with depth values beyond the depth range.

Max range: 1 to 9,999 mm

Depth maps under different depth range settings:

Too large

Moderate

Too small

../../../../../_images/depth_large1.png
../../../../../_images/depth_moderate1.png
../../../../../_images/depth_small1.png
../../../../../_images/depth_large_11.png
../../../../../_images/depth_moderate_11.png
../../../../../_images/depth_small_11.png

Hint

Please set an appropriate range to select the parts that are relevant to your projects. The range should not be too large or interference may be introduced. Nor should it be too small or the point cloud the key parts may be missing.