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Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Auto-register or manually register scans into a point cloud, then add targets to improve scan accuracy.
Type:
Tutorial
Length:
4 min.
Transcript
00:03
When importing scans into ReCap, your data may already be registered by other software.
00:09
For unregistered data, however, ReCap provides tools to let you merge scans into one cohesive point cloud.
00:17
This process essentially stitches your scans together into a full representation of your intended project.
00:24
ReCap offers two types of registration:
00:27
automatic mass registration or manual registration.
00:32
If you opt for automatic mass registration, Recap does its best to register every scan.
00:39
If it is unable to add a scan to the large point cloud, it creates groups.
00:45
It is then your responsibility to register these groups, or you can choose to keep them separate.
00:52
Once the auto-scan is complete, Recap displays the Registration Quality Report,
00:57
with the following values for each scan:
01:01
Overlap is a percentage of common features throughout the project.
01:05
A higher percentage of overlap ensures that features that are shadowed or occluded behind objects in one scan
01:12
(such as behind a column) are visible in one of the other scans.
01:16
Balance displays the percentage of common features in the scan.
01:21
Larger values are better.
01:24
Low balance usually happens when scans are too far apart to share high-quality surfaces in each direction.
01:32
Points (<6mm) shows the percentage of overlapping points within 1/4",
01:39
or 6mm of the corresponding feature in the project.
01:42
Ideally, this value should be greater than 90%, and if possible, closer to 100%.
01:50
The second type of registration offers more control, as you can register manually, scan by scan.
01:58
Manual Registration is available at any time during the registration process.
02:04
Electing to leave the Auto-Registration compiles any registration already completed
02:10
and allows you to finish the registration process through the standard manual workflow.
02:15
Recap still assists you by trying to find the best fit.
02:20
When you add a new scan, if ReCap cannot find a solution, or if the suggested solution is incorrect,
02:27
you can add up to three points to improve the understanding of how the two scans should be positioned.
02:33
These points do not need to be precise, just in the same area in the two scans.
02:39
As with automatic registration, you also get access to the Registration Quality Report.
02:45
You can also add spheres or targets to improve the accuracy of a scan.
02:52
While spheres are not as commonly used these days, targets are still prevalent, mostly for georeferencing.
02:59
Add targets by creating survey points to help improve the accuracy of your scan and correct problem areas.
03:07
To do so, click a point that is known in real-world coordinates.
03:12
For example, if you perform a GPS survey, you can add the coordinate values of these points.
03:20
If registration completes correctly, the scan automatically merges into the main scan group and the quality report displays.
Video transcript
00:03
When importing scans into ReCap, your data may already be registered by other software.
00:09
For unregistered data, however, ReCap provides tools to let you merge scans into one cohesive point cloud.
00:17
This process essentially stitches your scans together into a full representation of your intended project.
00:24
ReCap offers two types of registration:
00:27
automatic mass registration or manual registration.
00:32
If you opt for automatic mass registration, Recap does its best to register every scan.
00:39
If it is unable to add a scan to the large point cloud, it creates groups.
00:45
It is then your responsibility to register these groups, or you can choose to keep them separate.
00:52
Once the auto-scan is complete, Recap displays the Registration Quality Report,
00:57
with the following values for each scan:
01:01
Overlap is a percentage of common features throughout the project.
01:05
A higher percentage of overlap ensures that features that are shadowed or occluded behind objects in one scan
01:12
(such as behind a column) are visible in one of the other scans.
01:16
Balance displays the percentage of common features in the scan.
01:21
Larger values are better.
01:24
Low balance usually happens when scans are too far apart to share high-quality surfaces in each direction.
01:32
Points (<6mm) shows the percentage of overlapping points within 1/4",
01:39
or 6mm of the corresponding feature in the project.
01:42
Ideally, this value should be greater than 90%, and if possible, closer to 100%.
01:50
The second type of registration offers more control, as you can register manually, scan by scan.
01:58
Manual Registration is available at any time during the registration process.
02:04
Electing to leave the Auto-Registration compiles any registration already completed
02:10
and allows you to finish the registration process through the standard manual workflow.
02:15
Recap still assists you by trying to find the best fit.
02:20
When you add a new scan, if ReCap cannot find a solution, or if the suggested solution is incorrect,
02:27
you can add up to three points to improve the understanding of how the two scans should be positioned.
02:33
These points do not need to be precise, just in the same area in the two scans.
02:39
As with automatic registration, you also get access to the Registration Quality Report.
02:45
You can also add spheres or targets to improve the accuracy of a scan.
02:52
While spheres are not as commonly used these days, targets are still prevalent, mostly for georeferencing.
02:59
Add targets by creating survey points to help improve the accuracy of your scan and correct problem areas.
03:07
To do so, click a point that is known in real-world coordinates.
03:12
For example, if you perform a GPS survey, you can add the coordinate values of these points.
03:20
If registration completes correctly, the scan automatically merges into the main scan group and the quality report displays.
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