How to Evaluate Data Quality in the Relative and Absolute Orientation Stages？
Relative Orientation Stage
- Camera Spatial Pose Check
– For circular shooting, the spatial distribution of cameras should form a circle.
- Sparse Point Cloud Check:
– 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
- Photo Alignment Check:
– If most photos are correctly aligned but a few are not, it may indicate issues with the relative orientation results.
- Overall Alignment Check:
– 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.
For reflective objects with few features, how to handle the issue of Assist Patterned Pad reflecting onto the object during photography?
You can print the Assist Patterned Pad provided on the official website, cut it into the shape shown below according to the real size of object. Then place it on the turntable for photography.
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.
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 should I do if the license of iReal 2E 3D scanner expires?
If you purchased the equipment from a reseller/regional manager of Scantech, please contact the corresponding reseller/regional manager directly, provide the serial number of the device (numbers starting with SK, mixed numbers and letters), and re-authorize.
If you don’t find this information helpful, you can contact us by sending an online message or e-mail (please inform us of the relevant information: serial number, company name, and purchase channel).
How many types of projects does 3DeVOK Studio scanning software support?
3DeVOK Studio scanning software supports a total of 3 types of 3D projects: Scan Project, Point Cloud Project and Mesh Project.
1. When you save the Scan Project, if you do not move the scanned item, you can reopen the scan project and continue to scan the data to prevent some parts from being missed during the first scan, resulting in incomplete data.
2. Save the Point Cloud Project, you can use “Model Splicing” to stitch and merge the data, and merge the texture files in the two projects at the same time, when the stitching is completed, you will start the calculation from the point cloud step.
3. Regarding the Mesh Project, replace the STL file with the optimized STL file. After opening it again, you can re-map, but the structure and spatial position of the model should not be too different so that the texture will not be misplaced.
When saving a 3D file, which 3D data format should I choose?
Usually, the 3D data in stl/obj/asc formats are the most commonly used 3D data formats. The stl format has no color texture, and the obj format has color textures. When you save an obj file, 3 files will be saved together: obj, mtl, and png. Without mtl and png, obj is equal to stl, with no color tuxture. The mtl file is like a bridge, it combines the obj and png.
After the data is saved, re-open the file in the 3DeVOK Studio software, the next step cannot be processed.
- Check whether the datanumber in the DataImage folder where the scanning project is saved is continuous. If there are intermittent numbers, the data cannot be processed normally.
- At the same time, check whether there are files of 0 kb in the folder. Those files will also affect the normal processing of data.
- Check the performance of the CPU and GPU of the computer and check if the disk space of the computer is sufficient, you can quickly check them from the diagnosis function of the software.
What data formats does 3DeVOK Studio scanning software support?
It supports universal point cloud formats (PLY, ASC), triangular mesh formats (OBJ, STL) and marker data (mk2).
What is the maximum distance between two markers?
To ensure a better result, it is recommended that the distance between two markers should not exceed 8-10 cm.
