How to Evaluate Data Quality in the Relative and Absolute Orientation Stages？
Relative Orientation Stage
– For circular shooting, the spatial distribution of cameras should form a circle.
– Sparse point clouds should show no obvious misalignment.
– For objects with fewer surface features, dense reconstruction can help assess the point cloud quality.
After confirming that the relative orientation results are accurate:
– Proceed to absolute orientation and align individual photos to refine the global alignment.
– After completing register, return to the absolute orientation stage to randomly check the camera alignment. If there are no issues, you can proceed to the texturing stage.
Absolute Orientation Stage
– If most photos are correctly aligned but a few are not, it may indicate issues with the relative orientation results.
– If all photos fail to align, it likely indicates errors in absolute orientation.
– For objects with fewer surface features, consider using point cloud and model matching to achieve absolute orientation.
By following these steps, you can systematically ensure the quality of your data.
After installing the 3DeVOK Mapping Software, the software shows a “Machine Not Compatible” error when launched. How to resolve this issue?
This issue is caused by the absence of the Microsoft WMIC tool. Please follow instructions in the photo and reinstall the Microsoft WMIC tool and try launching the software again.
How to use the ColorChecker Calibration function in the 3DeVOK Mapping Software?
How to set the plugin path?
Open the 3DeVOK Mapping Software, and find “Plug-ins” in the menu bar, Click on “Settings” , which will open a window to set the plugin path.
Click “Open” and locate the plugin application .exe file. (If you can’t find the installation location, right-click the software on your desktop, and select “Open file location” to check the installation path.)
Click “OK” to complete the plugin path setting.
After opening the project file, the mesh data node shows that the path does not exist?
Please open the directory where the project file is located, find the Mesh folder, and check if there is any obj file inside. If the obj files exist, please ensure that the project directory name and the obj file names are consistent. If they are not, please modify them to be consistent.
After reinstalling the computer’s operating system, do I need to reapply for authorization for the 3DeVOK Mapping Software?
No, you do not need to reapply for authorization. The ID is bound to the hardware.
Due to inconsistent photo brightness, the model texture has lighting issues. How can this be resolved?
First, ensure the texture is clear. Then, use the Burn Tool in Photoshop to adjust the brighter areas and the Dodge Tool to adjust the darker areas. Customize the tool settings in the options bar (such as “Brush Size,” “Range,” and “Exposure”) to achieve the desired effect.
How to use Relative Orientation in Metashape?
3. When using Relative Orientation, you can check Metashape for calculations.
What should I do if my computer prompts a virus after downloading software?
When some customers download 3DeVOK scanning software, 3DeVOK intelligent mapping assistant or other related files using the channels provided by 3DeVOK’s official website, they may encounter a browser pop-up window “virus exists” after the download is completed.
In this case, you need to complete the following operations in the computer settings:
Open the computer system settings and enter the “Security Center – Virus and Threat Protection” interface. Turn off “Real-time protection”, “Cloud-provided protection” and “Automatic sample submission“.
Once you have done the above, you can download the software normally!
(The files downloaded from the 3DeVOK website are virus-free and pose no threat to your computer’s security, so please feel free to download them!)
What is the difference in mapping results among the common color 3D mapping methods?
Conclusion: The difference in mapping results is not significant.
The 3D data obtained by 3D laser scanning has higher precision (up to 0.02 mm) and can restore the details of the scanned object to the largest extent, and the mapping effect is much better.
The mapping result obtained via DSLR is way better than via color 3D scanning, no matter from its color definition or color restoration, especially when 3D scanning medium or large-sized objects.
Conclusion: The 3D data obtained by 3D laser scanning restored more details of the object
(especially in the face of reflective parts, black parts, small and medium-sized parts, slender parts, etc., the scanning results will be better), and the mapping effect will be better.
Is the process of Photoshop a must?
This step in Photoshop can be selectively skipped according to the requirements for texture quality.
When do you need to extract the mainbody and when you don’t?
The purpose of extracting the subject is to prevent the background from interfering with the orientation, and the decision of whether to extract the subject is based on whether the relative position of the object and the background changes. If the object does not move and the person moves, there is no need to extract the subject; if the object moves (such as taking a picture on a turntable) and the person does not move, the subject needs to be extracted.
