Starting Data [Aerial]

• The main steps in the Starting Data page, are the following:

1. Import of Photos.

2. Import of Navigation Data (if the photos were not captured using a RTK drone).

3. Import of GCP (Ground Control Points).

4. Selection of the Coordinate system.

5. Selection of the Camera parameters.

Starting data workspace

• The workspace is organized as follow:

  

1. Top bar: the main menus of the X-Photo Processing manager,

2. Sub-Menu Bar: where you can access all the related functions of every main menu,

3. Photos list: The complete list of the imported photos, with the possibility to:

   1. add new photos:

   2. delete selected photos:

   3. get a preview of the photos:

   4. get details of the photos:

   5. change the zoom of the displayed photos:

   6. link the map visualization to the selected photo:

4. Preview of the selected Photo,

5. Photo metadata,

6. Map visualization.

You can choose the map visualization between some popular online mappings services and WMS servers.

Photo import

• Click on Add Photos , locate your photos folder, and upload them.

  

• Select if you want to make a copy of the photos to import, or completely move them into the X-PAD Fusion project folder

  

If these photos were captured using a RTK drone, then the Camera parameters and navigation data (JPG, BMP,PNG) should be already registered on their metadata.

Navigation Data import

• If, in the photos imported, the camera parameters and navigation data, are not already registered in their metadata, then you can import the navigation data manually from external files.

The supported formats are: TXT, CSV.

• Click on Add navigation data , locate your file folder, and choose the import scheme:

  

The import scheme can be customized by selecting < Custom >

• Follow all the next steps until the import of data is completed.

• Finally click on End.

• If needed, you can delete the navigation data of selected points by clicking on .

• You can also set the flight height for all the navigation data, by clicking on .

A correct flight height could reduce the camera orientation elaboration time.

• You can also link the visualization map to the selected navigation rows, by clicking on

This bar , provides additional flight information, including:

• Start: the time the flight began.

• End: the time the flight finished.

• Duration: the total time the flight lasted.

• Distance: the total distance covered during the flight

GCP import

• Click on Add GCP , to add Ground Control Points’ coordinates from external files,

The supported formats are: TXT, CSV.

• Locate your file folder, and choose the import scheme:

  

You can select the general marker to use along with the border size, from: Manual, Black circle and Checkboard. X-PHOTO targets are available in this folder C:\Program Files\GeoMax\X-PAD Office Fusion\Targets.

• Follow all the next steps until the import of data is completed.

• Finally click on End.

GCP can also be imported from the current X-PAD Fusion project, by clicking on

• If needed, you can delete selected ground control points by clicking on .

• From the GCP list, you can change the display of GCP coordinates between (Latitude, Longitude, Height) and (Easting, Northing, Elevation) formats, by clicking on .

• You can also link the map visualization to the selected GCP, by clicking on .

You can choose the map visualization between some popular online mappings services and WMS servers.

Coordinate system selection

• To set the coordinate system for your session, click on , and choose from the following:

  • By Project: to select the coordinate system for your project, from a predefined list,

  • By Survey: to inherit the coordinate system of the selected Survey,

  • No system: to cancel the previously selected coordinate system.

Camera parameters selection

From Starting Data menu, it’s possible to select the Camera Parameters.

• Click , to check or change the camera parameters.

  

  • f: focal length.

  • ppx, ppy: principal point x and y (pixels refers to image angles).

  • k1, k2, k3: radial distortion.

  • t1, t2: tangential distortion.

After processing the project with a new camera, it will be possible to save the camera parameters.

• RTK Full Auto is a function to execute all the calculations (Camera orientation and 3D Reconstruction), in one single operation.

• This option is available only for drone GNSS RTK photos.

• GCPs have to be marked with specific target to be automatically detected and centered.