Profile Mode

You are currently viewing the documentation for a pre-release version (2.6.1). To access documentation for other versions, click the "Switch Version" button located in the upper-right corner of the page.

■ If you're unsure about the version of the product you are using, please contact Mech-Mind Technical Support for assistance.

This topic provides descriptions of the parameters in the profile mode.

1. Trigger Settings

Select the trigger sources and set relevant parameters.

For the methods of triggering the laser profiler to acquire data in the scan mode, please refer to Methods for Triggering Data Acquisition.

1.1. Data Acquisition Trigger Source

Description

Select the source of the signals that trigger data acquisition. One round of data acquisition scans one line of data and generates one profile.

Visibility

Beginner, Expert

Values

  • Software (default)

  • Edge

Instruction

If you use externally input signals to trigger data acquisition, select External. Otherwise, select Software.

1.1.1. Trigger Polarity

This parameter is only visible when Data Acquisition Trigger Source is set to Edge Trigger.

Description

Sets the active direction or level state of the trigger signal.

Visibility

Expert

Values

  • Positive polarity (default)

  • Negative polarity

Instruction

Positive polarity means rising-edge triggering, and negative polarity means falling-edge triggering.

1.1.2. Trigger Delay

Description

Selects whether to set the trigger delay in time or line count.

Visibility

Expert

Values

  • Time (default)

  • Line count

Instruction

After selecting the delay type, you need to set the corresponding Trigger Delay Time or Trigger Delay Line Count.

  • Trigger Delay Time: Sets the delay time between receiving the trigger signal and starting acquisition. Once this parameter is set, the trigger delay shifts the acquisition start and end positions backward while keeping the acquisition range unchanged.

  • Trigger Delay Line Count: Sets the line count for trigger delay between receiving the trigger signal and starting acquisition. Once this parameter is set, the trigger delay shifts the acquisition start and end positions backward while keeping the acquisition range unchanged.

1.1.3. Debounce Time

This parameter is only visible when Data Acquisition Trigger Source is set to Edge Trigger.

Parameter Description

Sets the minimum valid duration of the input signal to filter out signal jitter and glitches. When the duration is shorter than this value, the signal is considered invalid and will not trigger acquisition.

Visibility

Expert

Values

  • Value range: 0 to 1000000 μs

  • Default value: 0 μs

Instruction

Setting the debounce time too large may block valid signals. The parameter value should be set based on the pulse width of the valid external input signal.

1.2. High-Speed Mode

Parameter Description

Enabling this parameter can improve the data acquisition speed, but the data quality may also decrease.

Visibility

Expert

Values

Enable High Speed Mode:

  • When the toggle switch is turned on, the data acquisition speed is increased, but the data quality may decrease.

  • When the toggle switch is turned off, the data acquisition speed and data quality can be restored to normal.

Instruction

  • When there is a high requirement on the acquisition speed, try enabling this parameter.

  • Once this option is enabled, it is recommended to check the profile integrity, noise level, and edge details according to the actual acquisition results.

  • If the acquisition result does not meet the requirements, it is recommended to disable this parameter or re-adjust it in conjunction with other relevant parameters.

2. ROI

Parameter Description

ROI defines the data processing range, reduces the amount of data to be processed, and enhances the max scan rate.

Support setting Fixed ROI on the X-Z plane or Dynamic ROI that varies along the scan direction.

The differences between Fixed ROI and Dynamic ROI are as follows:

Type Description Illustration

Fixed Single Window ROI

The ROI remains unchanged during scanning. At a single Y-axis position, the ROI is a single continuous region in the Z-axis.

Applicable scenarios: Suitable for scenarios where the shape of the measured feature varies little at different scan positions and only one continuous ROI needs to be set at a single laser line position.
width220

Fixed Multi-Window ROI

The ROI remains unchanged during scanning. At a single Y-axis position, the ROI can consist of multiple discrete regions in the Z-axis.

Applicable scenarios: Suitable for scenarios where the measured features are distributed stepwise or stratified at the positions of a single laser line, and ROI windows need to be set separately in different Z-value ranges for selection.
fixed roi multi window

Dynamic ROI

The ROI varies with the Y-axis position. The position or range of the ROI can be dynamically adjusted at different scan positions.

Applicable scenarios: Applicable to scenarios where the target height or shape varies greatly at different scan positions.
dynamic roi

Fixed ROI can only be edited in the Profile Mode.

Dynamic ROI can only be edited in the Scan Mode. For details, refer to Edit Dynamic ROI.

Visibility

Beginner, Expert

Values

  • Fixed (default)

  • Dynamic

Instruction

Follow these steps to set a fixed ROI:

  1. Click the Edit button to the right of Edit ROI to open the editing status.

  2. Sets Number of Windows (1 to 4, default 1). If multiple discrete regions need to be covered, you can increase the number of windows.

    Dynamic ROI and Dynamic Mask are unavailable when the number of windows exceeds 1.

  3. Select the window to be set in the Current Window (ROI 1 to ROI 4).

  4. Drag the ROI in the left panel to adjust the ROI. You can also adjust the value of the X-axis and Z-axis parameters on the right.

    The X-axis parameters take effect for all windows at the same time; the Z-axis parameters take effect only for the current window.

  5. After adjusting, click Confirm to save the settings.

Value ranges of different models:

Model X-Axis Width (mm) X-Axis Start Position (mm) Z-Axis Height (mm) Z-Axis End Position (mm)

LNX-7030-GL

0.1~37

-18.5~18.4

0.1~21

-11~9.9

LNX-7045-GL

0.1~52

-26~25.9

0.1~31

-16~14.9

LNX-7080-GL

0.1~97

-48.5~48.4

0.1~70

-42~27.9

LNX-7150-GL

0.1~210

-105~104.9

0.1~140

-90~49.9

LNX-7300-GL

0.1~400

-200~199.9

0.1~310

-210~99.9

LNX-7600-GL

0.1~825

-412.5~412.4

0.1~650

-470~179.9

3. Profile Processing

The parameters in this category process the extracted profile, improving the quality of the profile.

3.1. Outlier Removal

Description

This parameter removes the outliers in each profile. Outliers are clustered points away from the object profile.

Visibility

Beginner, Expert

Values

  • Off

  • Very low

  • Low

  • Medium (default)

  • Height

  • Very high

Instruction

A higher level of Outlier Removal Intensity removes more outliers but may also remove some surface features of the object.

Point clouds obtained with different Outlier Removal values (all other conditions identical):

Off Very low Very high

outlier removal off

outlier removal very low

outlier removal very high

3.2. Denoising Smoothing

Description

Suppresses spike noise in the profile while largely preserving edge features.

Suitable for scenarios with outliers or noticeable local interference.

Visibility

Beginner, Expert

Values

  • Off (default)

  • Very low

  • Low

  • Medium

  • High

  • Custom

Instruction

Sets the intensity of denoising smoothing.

  • Higher intensity suppresses spike noise more strongly but may cause more profile detail loss. Suitable for scenarios with outliers or noticeable local interference.

  • When Custom is selected, you can set the Window Size for denoising smoothing manually.

3.2.1. Window Size

Description

Sets the window size for denoising smoothing.

Visibility

Beginner, Expert

Values

  • 3

  • 5 (default)

  • 7

  • 9

Instruction

Larger window size results in stronger noise suppression but may cause more profile detail loss.

Profile extraction results with different Denoising Smoothing Window Size values (all other conditions identical):

Denoising smoothing not used

median filter none

Denoising smoothing window size: 5

median filter 5

Denoising smoothing window size: 9

median filter 9

3.3. Uniform Smoothing

Description

Applies uniform smoothing to the profile, reducing overall noise and data fluctuations.

Suitable for scenarios with low noise and high requirements for data continuity.

Visibility

Beginner, Expert

Values

  • Off (default)

  • Very low

  • Low

  • Medium

  • Fairly high

  • Height

  • Very high

  • Custom

Instruction

Sets the intensity of uniform smoothing.

  • Higher intensity provides stronger smoothing effect but may cause more edge detail loss.

  • When Custom is selected, you can set the Window Size for uniform smoothing manually.

3.3.1. Window Size

Description

Sets the window size for uniform smoothing.

Visibility

Beginner, Expert

Values

  • Value range: 3 to 255

  • Default value: 9

  • Increment: 2

Instruction

Larger window size results in stronger smoothing effect but may cause more profile detail loss.

Profile extraction results with different Uniform Smoothing Window Size values (all other conditions identical):

Uniform smoothing not used

mean filter none

Uniform smoothing window size: 15

mean filter 8

Uniform smoothing window size: 51

mean filter 32

3.4. Gap Filling

The parameters in this group are used to fill gaps in the profile to improve its continuity and integrity.

3.4.1. Max Gap Points

Description

Sets the size of the gaps that can be filled in the profile.

When the number of consecutive data points in a gap in the profile is no greater than this value, this gap will be filled.

Visibility

Beginner, Expert

Values

  • Value range: 0 to 62

  • Default value: 0

Instruction

Adjust based on the size of the gaps to be filled.

Gap Filling may distort features with abrupt depth variations, such as object edges. You can adjust Gap Filling Edge Preservation to reduce the influence on these features.

Raw images obtained with different Gap Filling values (all other conditions identical):

Gap Filling: 0

gap filling 0

Gap Filling: 10

gap filling 10

3.4.2. Edge Preservation

Description

This parameter sets the degree of preservation of object edges when filling gaps.

Visibility

Expert

Values

  • Value range: 1 to 5

  • Default value: 3

Instruction

If you need to preserve features with abrupt depth variations, such as object edges, you can increase this parameter, but the amount of gaps being filled will decrease.

3.4.3. Maximum Search window

Description

Sets the maximum range for searching neighboring data during gap filling.

Visibility

Expert

Values

  • Value range: 1–8

  • Default value: 1

Instruction

The larger the value, the wider the search range, and the gaps are more likely to be filled, but edge details may be lost.

3.4.4. Filling Method

Description

Sets the method for gap filling.

Visibility

Expert

Values

  • Linear Filling (default)

  • Nearest-neighbor filling

Instruction

  • Linear filling: Fills gaps in a linear manner, resulting in smoother results.

  • Nearest Neighbor Filling: Fills gaps using neighboring data, which can better preserve local abrupt features.

4. Resolution

Set the X-axis resolution of the scan data.

4.1. X-axis Resolution

Parameter Description

Sets the X-axis resolution of the scan data, which is the distance between two neighboring points along the direction of the laser line.

Visibility

Basic, Expert

Values

  • Value range (μm):

    • LNX-7030-GL：11μm（2~66μm)

    • LNX-7045-GL：15μm（3~90μm)

    • LNX-7080-GL：25μm（4~150μm)

    • LNX-7150-GL：50μm（8~300μm)

    • LNX-7300-GL：80μm（13~480μm)

    • LNX-7600-GL：150μm（25~900μm)

  • Increment: 0.1 μm

Instruction

X-axis Resolution is only effective when Sampling Method is set to Uniform Spacing.

5. Correction

The parameters in this group are used to correct height and orientation deviations of the profile.

5.1. Height Correction

Parameter Description

Correct the height error in the profile, which is caused by the rotation of the laser profiler around the X-axis.

Visibility

Beginner, Expert

Values

Enable Height Correction toggle switch:

  • When the toggle switch is turned on, the height correction result will be applied to the profiles.

  • When the toggle switch is turned off, the height correction result will not be applied to the profiles.

Height Correction Ratio:

  • Value range: 0.5 to 2

  • Default value: 1.000

Instruction

For detailed instructions, refer to Height Correction.

5.2. Tilt Correction

Parameter Description

Correct the tilt of the profile, which is caused by the rotation of the laser profiler around the Y-axis.

Visibility

Beginner, Expert

Values

Enable Tilt Correction toggle switch:

  • When the toggle switch is turned on, the tilt correction result will be applied to the profiles.

  • When the toggle switch is turned off, the tilt correction result will not be applied to the profiles.

Tilt Correction Angle:

  • Value range: –90.000° to 90.000°

  • Default value: 0.000°

Instruction

For detailed instructions, refer to Tilt Correction.

6. Data output Settings

The parameters in this group are used to configure the sampling method when outputting data.

6.1. Sampling Method

Parameter Description

Set the sampling method for data output.

Visibility

Basic, Expert

Values

  • Uniform spacing (default)

  • Non-uniform spacing

Instruction

To output profile data with fixed point spacing, select Uniform spacing; to retain original sampling positions, select Non-uniform spacing.

Outputting Depth map in scan Mode is not supported when Non-uniform spacing is selected.

Is this page helpful?

You can give a feedback in any of the following ways:

We Value Your Privacy

We use cookies to provide you with the best possible experience on our website. By continuing to use the site, you acknowledge that you agree to the use of cookies. If you decline, a single cookie will be used to ensure you're not tracked or remembered when you visit this website.

  • Preference
  • I accept
  • I don't accept