Processing projects - PIX4Dcatch RTK


With a project captured with PIX4Dcatch and the viDoc RTK rover, several options exist for processing a 3D model. Directly upload and process to PIX4Dcloud / PIX4Dcloud Advanced for the most immediate results, or export the project and process using PIX4Dmatic or PIX4Dmapper.
Regardless of the chosen option, the model is extracted from images that are accurately geotagged by the viDoc RTK rover.

Upload and process to PIX4Dcloud / PIX4Dcloud Advanced

For fast results, uploading and processing with PIX4Dcloud / PIX4Dcloud Advanced can provide quick shareable 3D reconstructions.

Important: A PIX4Dcloud / PIX4Dcloud Advanced license is required to upload the project for cloud processing.

Upload directly from the project

PIX4Dcatch trench project

Captured project ready for upload.

After capturing a project, upload directly to PIX4Dcloud / PIX4Dcloud Advanced for processing by tapping Upload  upload button at the top of the screen.

Upload from the Projects screen

It is also possible to upload from the Projects screen, which lists all of the projects taken on the mobile device.

1. Tap the folder icon file button to access the Projects screen.

2. Select the project and upload it.

  • For iOS:

    PIX4Dcatch Projects menu screen

    PIX4Dcatch iOS Project menu.

    • Tap and hold on the desired project to access the menu.
    • Tap Upload. PIX4Dcatch upload cloud icon
  • For Android:


    PIX4Dcatch Android project menu has two options for upload.

    • Method 1:
      • Tap and hold on the desired project to access the menu.
      • Tap Upload upload button.
    • Method 2:
      • Tap the expand iconexpand iconfor the project.
      • Tap PIX4Dcatch upload cloud icon Upload.

Processing options

After tapping Upload the Upload project window appears providing further processing options.

Projects can be uploaded as a New Dataset, or Assign To a new or existing site in PIX4Dcloud Advanced. For more info on the site option: New site - PIX4Dcloud Advanced.

Note: For more information when using the PIX4Dcloud / PIX4Dcloud Advanced credit balance system: PIX4Dcloud / PIX4Dcloud Advanced credit balance system - PIX4Dcatch.
Note: When capturing projects using a LiDAR-capable device and uploading it to the cloud, the LiDAR depth data will be processed automatically. Refer to the PIX4Dcatch FAQ for a list of compatible devices and for more information on how PIX4Dcatch uses LiDAR data.

PIX4Dcatch upload dialog processing options RTK

Upload Project dialog.

  • volume icon Measure Volumes and Elevation Profiles: Select this option to generate a DSM of the area.
  • orthomosaic icon 2D Map: Select this option to generate an Orthomosaic.
  • coordinate reference system icon Output coordinate system: It is possible to select the output coordinate reference system for projects captured with the viDoc RTK rover. Auto Detected selects the UTM zone corresponding to the project's location.
    • coordinate reference system icon Click the Output coordinate system tab to select a known coordinate reference system.

      PIX4Dcatch output coordinate reference system Upload dialog

      Select Output CRS dialog.

    • Select the desired coordinate reference system.
      • projected Coordinate System icon Choose the horizontal coordinate reference system.
      • altitude vertical icon Choose the vertical coordinate reference system.
      • globe geoid icon Select the geoid when available. If no geoid is available, it is possible to enter the geoid height over the ellipsoid. See more details: Orthometric vs ellipsoidal height
    • Select Done.
    Note: When a local geoid is not available, it is possible to enter the geoid height over the ellipsoid to obtain geoidal heights for the project.


    Enter the average geoid height over the ellipsoid for the area scanned.

Once the selections are complete, tap Upload at the top of the screen to start uploading. An email is sent when all images are uploaded and processing begins. A second email is sent when processing is finished. After the processing is finished, the results can be viewed and shared on PIX4Dcloud.

Tip: Do not quit PIX4Dcatch or lock the device while uploading the project.

Export and process locally with PIX4Dmapper or PIX4Dmatic

Important: A PIX4Dmapper/PIX4Dmatic (trial, discovery, OTC, monthly, and yearly) license with S&U (Support and Upgrade) is required to export and process the project in PIX4Dmapper/PIX4Dmatic.
Note: Use PIX4Dmatic to process projects locally with LiDAR data.

1. Export the project from the device to the computer. For more information: How to export PIX4Dcatch projects (iOS/Android).
2. Create a new project and start processing using PIX4Dmapper/PIX4Dmatic. For more information:

3. After the processing is finished, the results are available for further analysis in PIX4Dmapper/PIX4Dmatic.

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