A new project from A-Z - PIX4Dcatch


PIX4Dcatch is a mobile application for ground 3D scans from iOS and Android devices. PIX4Dcatch allows anyone to easily acquire the right terrestrial data for digitizing the reality around them and turning it into accurate 3D models. This article will show you how to use PIX4Dcatch from start to finish.

Download and Install

PIX4Dcatch Overview

The home/capture screen is the primary interface when opening the app. The signal quality indicator and user account options are found at the top of the screen.


PIX4Dcatch_signal_tab.png     Signal quality indicator

  • GPS Status
    Monitor the quality of cellular reception.
    • GPS_status_100.png 4 bars: Location accuracy less than 5m(16ft).
    • GPS_status_75.png 3 bars: Location accuracy between 5m(16ft) and 10m(33ft).
    • GPS_status_50.png 2 bars: Location accuracy between 10m(33ft) and 50m(164ft).
    • GPS_status_25.png 1 bar: Location accuracy greater than 50m(164ft).
    • GPS_status_0.png No bars: No GPS signal.
  • arrow_down.jpgGPS Sensor / Bluetooth selection
    • Integrated GPS Sensor: Default selection using the internal GPS for geolocation.
    • viDoc RTK via Bluetooth: Select when connecting viDoc RTK rover.

PIX4Dcatch_account_options.png     Account settings


PIX4Dcatch Account dialog.

Account details

  • Create Account: Access form for new users to create an account.
  • Log in: Access form for existing account holders to log in.


  • View Onboarding: View onboarding slides.
  • Documentation: Opens the PIX4Dcatch documentation page to access learning materials.
  • Community: Opens the PIX4Dcatch Community page.
  • Pix4D Terms and Policies: List of Pix4D terms and policies.
  • Third Party licenses: List of third-party licenses.
  • App Usage Disclaimer: Access the PIX4Dcatch App Usage Disclaimer.
  • The installed version of the PIX4Dcatch app.


PIX4Dcatch is ready to capture.

Capture functions and project folders are found at the bottom of the window. The capture button DARK.jpg starts a capture, and the pause button pause.jpg pauses a capture. During capture, the primary.jpg button saves a project, and the cancel_circle.jpg button aborts a project.

Live_preview_button.png     Live Preview


PIX4Dcatch Live Preview screen.

iOS and Android users who have LiDAR or ToF sensors in their devices can use the Live Preview feature to gain insight into what is being captured.

  • Map_view.png   Top view: Full view of the project area.
  • POV_view.png   First-person view: Focused view from the camera perspective.
  • Cancel_preview.png   Cancel: Close the Live Preview window.
  • point_cloud.png   Point Cloud: View the points collected.
  • camera_position.png   Cameras: Show the camera positions.

Use the live preview to help see what is captured.

file_blk.jpg     Projects


PIX4Dcatch Project dialog.

  • Search projects using keywords.
  • Filter projects by type.
    • Captured
    • Processed
    • Processing
    • All
  • The number of projects.
  • Select multiple projects for deletion.

Each project thumbnail contains unique information including the number of images, upload status, project name, and capture date. Tap and hold a project to access the project menu allowing further actions.


Project thumbnail menu.

  • Rename: Rename the project
  • Upload: Upload to PIX4Dcloud
  • Export all data: Export the entire project to save or process locally.
  • Export captured point cloud (PLY): Exports the collected point cloud from devices with LiDAR or TOF sensors. (This is not used in processing but for visualization in the Live Preview)
  • Export captured mesh (OBJ): Export the collected mesh when selected.
  • Export Logs: Exports the current log files documenting internal aspects of the entire project. It is important to export logs soon after a potential issue as they can be overwritten with new information.
  • Delete: Deletes the project.

GCP_management.png     GCP management

Note: We recommend using this feature with the viDoc RTK rover for cm accuracy.


PIX4Dcatch GCP Management dialog.

From the GCP management dialog window, it is possible to:

  • See the number of collections.
  • PIX4Dcatch_GCP_list_map_view_toggle.png Toggle between list and map views.
  • List of existing collections.
    • coordinateSystem_icon.jpg Input coordinate reference system.
    • gcp.png The number of measured points in the collection.
  • New_GCP_collection.png Start a new GCP collection.

Select a collection for the list of points measured.


PIX4Dcatch single point collection dialog.

  • export.jpg Export GCP collection. Complete(full information) and PIX4Dmatic-based files(for direct import to PIX4Dmatic), along with logs are exported.
  • Collection name
  • The number of measured points currently in the collection.
  • PIX4Dcatch_GCP_list_map_view_toggle.png Toggle list and map views
  • Collected points.
    • PIX4Dcatch_measured_GCP.jpg

      PIX4Dcatch single point measurement dialog.

    • Point name.
    • RTK/GPS tag.
    • Horizontal and vertical accuracies.
    • Coordinates measured.
    • calendar.png Date measured.
    • timer.png Measurement duration.
  • New_GCP_button.png Measure a new GCP.
  • Output coordinate reference system for the GCP collection.

settings_button.jpg     Settings


PIX4Dcatch main settings dialog.

Use the Settings dialog to adjust and customize features within the PIX4Dcatch app.

For detailed information: Settings - PIX4Dcatch.


With PIX4Dcatch installed on the device, it is now ready to capture a project.

Process the images

Upload and process on PIX4Dcloud

Process locally with PIX4Dmapper or PIX4Dmatic

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