Hello, this is the nat Blog Editorial Team.

Last time, How to Photograph 3D Models .

In this post, I’d like to discuss how models are processed and their quality.

LiDAR sensors are typically very expensive, and devices equipped with them often cost anywhere from several hundred thousand to several million yen; however, the LiDAR sensors built into iPads and iPhones capture a limited number of data points and are not of particularly high quality.

Using our proprietary algorithm, we remove low-quality points from the point cloud data. This technology enables measurements accurate to the millimeter on the resulting 3D model.

Next, we generate mesh data from the resulting point cloud data.

Furthermore, by overlaying the photo data captured during the scan onto the mesh data, a high-quality model is generated Scanat. All of these steps can be performed even in locations without Wi-Fi.

Although the post-capture processing time is very short (about 10 seconds), the system performs the complex operations described above during that brief period.

Now, let’s get back to the model-building process.

Once scanning Scanat is complete, you will automatically be taken to the "Process Model" screen.

Although processing takes only a moment, if you wish to take multiple photos in succession, you can choose to process them all at once later. In that case, simply close the processing screen by clicking "Close" and then take more photos of the model.

There are four processing quality options: "High Quality," "Medium Quality," "Low Quality," and "Custom." However, if you are using a standard iPhone Pro or iPad Pro, you should select "Medium Quality." This is because your device may lack sufficient memory and CPU power to handle "High Quality" processing, which could result in excessive noise in the final model.

If you're using a high-end iPad Pro with 1TB or more of storage, please select "High Quality." You should end up with a very high-quality model.

After selecting the model quality, click the "Start Processing" button.

When the model begins processing, a "Processing..." pop-up appears, displaying the estimated processing time. Once the estimated processing time has elapsed, the model processing is complete.

Once the "Processing..." message disappears, the process is complete. Once the process is complete, you will be returned to the "Model Information" screen.

If you’ve taken multiple photos of a model in succession, photographed a very large object, or if your iPhone or iPad has limited storage space, Scanat may crash during processing. If Scanat happens, please restart Scanat app.

If a model has already been generated within the app, it may either be complete or still in progress. If the model is complete, you can view it as is. If it is not yet complete, please run the process again. (This will not affect the final result of the model.)

Next time, I’d like to write about tips and things to keep in mind when photographing models.