This article will guide you through the upload procedure for high-accuracy lidar datasets from the DJI Zenmuse L1, Zenmuse L2, and compatible ground control.
Please note that there are different steps for uploading an already corrected and classified point cloud. You can review these steps in our Knowledge Base article "Upload Lidar Point Clouds as LAS/LAZ Files to View Them as 3D Terrain." The information below covers raw lidar processing and classification.
Requirements
- A site has already been created in your portal where you can upload your data.
- If AeroPoints will be used, the AeroPoint survey must be processed before uploading the remaining lidar survey.
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Ground control is required for processing.
- In addition to AeroPoints, targets or panels captured with a rover or other means will also work.
- A minimum of 2 GCPs is required for sites with local CRS.
- All photos collected with DJI L1 or L2 must be included.
- There’s a maximum upload limit of 155 gigapixels.
Similar to uploading photogrammetry, select the DATA PROCESSING tab at the top of the screen to start the upload and create a new dataset.
1. Select the Lidar survey processing option.
2. Select the correction method.
- Selecting Propeller PPK will require selecting an AeroPoint survey.
- Selecting Propeller PPK without AeroPoints will require uploading a base station correction file in a .OBS format.
- Selecting Use my own or no corrections will require you to upload a base station correction file in .RTB format.
3. Add the raw lidar files along with the photos.
It will be validated if the files are complete, depending on the correction method selected.
Files that are not needed for processing will not be included.
- If Propeller PPK without AeroPoints is selected, .OBS file is required.
- If Use my own corrections is selected, .RTB file is required.
After you’ve uploaded your lidar files, your license will be checked to see if it is active and valid and if there are sufficient credits.
- You can see the license used and the credit balance
- You can see the cost of the upload (in credits).
4. Add the ground control points.
- For Propeller PPK, either AeroPoints or AeroPoints and CSV file can be selected.
- For Propeller PPK without AeroPoints, only CSV can be selected.
- For Use my own corrections, AeroPoints, CSV, or AeroPoints and CSV file can be selected.
Please note that if you are using a CSV file you must include the following information in the column headers:
- Name: a unique name for each GCP. For column headers, you can also use name, point number, point name, id, identifier.
- X: The number specifying the x coordinate. For column headers, you can also use easting, eastings, east, longitude, long, lng, or e.
- Y: number specifying y coordinate. For column headers, you can also use northing, northings, north, latitude, lat, or n.
- Z: number specifying z coordinate. For column headers, you can also use elevation, elev, height, orthometric height, or z.
When selecting an AeroPoint survey, process it before submitting the data.
Specify control point purpose: You can specify if your control points should be Ground control or Checkpoint. You can also exclude control points from the upload by unchecking the control point checkbox.
5. Name this survey and provide any additional information.
Add the additional notes box to provide any relevant information to the person processing the data.
You can also enable a Quality assurance check - this will ensure that the current survey being uploaded is compared to a previous survey which you will specify in the comparison survey dropdown.
6. Click SUBMIT SURVEY FOR PROCESSING.
Once complete, you'll get a message confirming your dataset has been submitted.
You can also see the Processing status of your lidar upload by selecting the DATA PROCESSING tab at the top of the screen.
I still can't do it!
We wrote these articles to equip you with everything you need to get the job done on your own, but we understand that sometimes this isn't sufficient.
If you're stuck, you can connect with our support team by clicking the support button on the top right corner of your user portal.
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