Input Files

Pix4Dmapper inputs are:

  • Images: Pix4Dmapper is based on image processing. 
  • Image geolocation file (optional): The file that contains the geolocation of the images.
  • Ground Control Points (GCP) file (optional): The file that contains the coordinates of the GCPs.
  • Coordinate system file (optional): The file that contains information about the coordinate system of the GCPs or the image geolocation.
  • GCP/Manual Tie Points marks file (optional): The file that contains the image coordinates of the GCPs and Manual Tie Points marked on the images.
  • Point cloud (optional): An external point cloud taken by other sources such as LiDAR can be imported into Pix4Dmapper to generate the DSM and Orthomosaic.
  • Processing Area (optional): An area that can be imported and which defines the area for which the outputs will be generated.
  • Radiometric calibration image (optional): An image that shows the radiometric calibration target
  • Volume measurement vertices/area (optional): Some vertices or a surface (area) that can be imported and which define the area for which the volume measurement will be performed. 
  • Regions in the Index Calculator (optional): Specific regions for which the Index Maps, the Index values and the Colored Index Maps will be generated.
  • Video file (optional): A video file can be imported and used for processing (instead of still images).

 

Images

Pix4Dmapper is an image processing software. The images can be either JPEG or TIFF files.

 
Warning: Do not modify images, i.e. do not rotate or edit the images. Modifying images alters the geometrical properties of the camera and may deteriorate the quality of the results.
Extension Description
.jpg, .jpeg JPEG images
.tif, .tiff Monochromatic TIFF
Multi-band TIFF (RGB / Infrared / thermal)
1 layer (no pyramid, no multi-page)
8, 10, 12, 14, 16 bit integer, floating point

 

Image geolocation file (optional)

Pix4Dmapper can process images with or without geolocation.

 
Note: If the project does not have image geolocation, GCPs or a Scale Constraint, image geolocation is required to scale the project for correct measurements.

If the image EXIF data contains the image position, then the geolocation file is not needed as Pix4Dmapper automatically reads the geolocation from the EXIF data. If the EXIF data does not contain the image GPS position, then a geolocation file is needed. The geolocation file delivered by any camera or GPS system can be edited in order to be compatible with Pix4Dmapper. Pix4Dmapper can also read the geolocation files delivered by the UAVs of 3D Robotics, CropCam and QuestUAV and the cameras of Tetracam.

The files that can be imported in Pix4Dmapper are:


Latitude, Longitude, Altitude

For geographic WGS84 (latitude, longitude, altitude) image geolocation coordinates. The file is a .csv, .txt, or .dat extension file. It contains four columns per line, and uses a comma to separate the characters. 

Extension Description
.csv, .txt, .dat Files from which the image geolocation can be imported

 

The format of the file is described in the table below:

 
Note: Orientation (optional): The omega, phi, and kappa angles that give information about the exterior orientation of the camera are NOT needed for processing for the Standard Calibration Method. This information is used during the Accurate Geolocation and Orientation Calibration Method. For more information about the Calibration Methods: 205327965.
If there is such information, they can be added to the file by adding 3 columns after the coordinates. For more information about the definition of omega, phi, and kappa in Pix4Dmapper: 202558969.
WGS84 geographic coordinates
imagename,latitude [decimal degrees],longitude [decimal degrees],altitude [meter]
 
Example:

IMG_3165.JPG,46.2345612,6.5611445,539.931234
IMG_3166.JPG,46.2323423,6.5623423,529.823423

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning: The latitude must be in the second column and the longitude in the third one.
WGS84 geographic coordinates including orientation
imagename,latitude [decimal degrees],longitude [decimal degrees],altitude [meter],omega [degrees], phi [degrees], kappa [degrees]
 
Example:

IMG_3165.JPG,46.2345612,6.5611445,539.931234,1.698,4.392,90.859
IMG_3166.JPG,46.2323423,6.5623423,529.823423,4.571,2.977,94.714

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning: The latitude must be in the second column and the longitude in the third one.
WGS84 geographic coordinates including orientation and Accuracy
imagename,latitude [decimal degrees],longitude [decimal degrees],altitude [meter],omega [degrees], phi [degrees], kappa [degrees],Accuracy Horz [meter],Accuracy Vert [meter]
 
Example:

IMG_3165.JPG,46.2345612,6.5611445,539.931234,1.698,4.392,90.859,5,10
IMG_3166.JPG,46.2323423,6.5623423,529.823423,4.571,2.977,94.714,5,10

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning: The latitude must be in the second column and the longitude in the third one.

 

Longitude, Latitude, Altitude

For geographic WGS84 (longitude, latitude, altitude) image geolocation coordinates. The file is a .csv, .txt, or .dat extension file. It contains four columns per line, and uses a comma to separate the characters. 

Extension Description
.csv, .txt, .dat Files from which the image geolocation can be imported

 

The format of the file is described in the table below:

 
Note: Orientation (optional): The omega, phi, and kappa angles that give information about the exterior orientation of the camera are NOT needed for processing for the Standard Calibration Method. This information is used during the Accurate Geolocation and Orientation Calibration Method. For more information about the Calibration Methods: 205327965.
If there is such information, they can be added to the file by adding 3 columns after the coordinates. For more information about the definition of omega, phi, and kappa in Pix4Dmapper: 202558969.
WGS84 geographic coordinates
imagename,longitude [decimal degrees],latitude [decimal degrees],altitude [meter]
 
Example:

IMG_3165.JPG,46.2345612,6.5611445,539.931234
IMG_3166.JPG,46.2323423,6.5623423,529.823423

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning: The longitude must be in the second column and the latitude in the third one.
WGS84 geographic coordinates including orientation
imagename,longitude [decimal degrees],latitude [decimal degrees],altitude [meter],omega [degrees], phi [degrees], kappa [degrees]
 
Example:

IMG_3165.JPG,46.2345612,6.5611445,539.931234,1.698,4.392,90.859
IMG_3166.JPG,46.2323423,6.5623423,529.823423,4.571,2.977,94.714

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning:  The longitude must be in the second column and the latitude in the third one.
WGS84 geographic coordinates including orientation and Accuracy
imagename,longitude [decimal degrees],latitude [decimal degrees],altitude [meter],omega [degrees], phi [degrees], kappa [degrees],Accuracy Horz [meter],Accuracy Vert [meter]
 
Example:

IMG_3165.JPG,46.2345612,6.5611445,539.931234,1.698,4.392,90.859,5,10
IMG_3166.JPG,46.2323423,6.5623423,529.823423,4.571,2.977,94.714,5,10

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning: The longitude must be in the second column and the latitude in the third one.

 

X, Y, Z

For image geolocation coordinates that are given in any projected coordinate system (X,Y,Z). The file is a .csv, .txt, or .dat extension file. It contains four columns per line, and uses a comma to separate the characters. 

Extension Description
.csv, .txt, .dat Files from which the image geolocation can be imported

 

The format of the file is described in the table below:

 
Note: Orientation (optional): The omega, phi, and kappa angles that give information about the exterior orientation of the camera are NOT needed for processing for the Standard Calibration Method. This information is used during the Accurate Geolocation and Orientation Calibration Method. For more information about the Calibration Methods: 205327965.
If there is such information, they can be added to the file by adding 3 columns after the coordinates. For more information about the definition of omega, phi, and kappa in Pix4Dmapper: 202558969.
Any projected coordinate system 

imagename,X/Easting [meter],Y/Northing [meter],Z [meter]   if the units of the system is meters

imagename,X/Easting [feet],Y/Northing [feet], z[feet]              if the units of the system is feet

Any projected coordinate system including orientation

imagename, X/Easting [meter],Y/Northing [meter],Z [meter], omega [degrees], phi [degrees], kappa [degrees]   if the units of the system is meters

imagename, X/Easting [feet],Y/Northing [feet],Z [feet], omega [degrees], phi [degrees], kappa [degrees]              if the units of the system is feets

Any projected coordinate system including orientation and Accuracy

imagename, X/Easting [meter],Y/Northing [meter],Z [meter], omega [degrees], phi [degrees], kappa [degrees],Accuracy Horz [meter],Accuracy Vert [meter]   if the units of the system is meters

imagename, X/Easting [feet],Y/Northing [feet],Z [feet], omega [degrees], phi [degrees], kappa [degrees],Accuracy Horz [feet],Accuracy Vert [feet]             if the units of the system is feets

 

Y, X, Z

For image geolocation coordinates that are given in any projected coordinate system (Y,X,Z). The file is a .csv, .txt, or .dat extension file. It contains four columns per line, and use a comma to separate the characters. 

Extension Description
.csv, .txt, .dat Files from which the image geolocation can be imported

 

The format of the file is described in the table below:

 
Note: Orientation (optional): The omega, phi, and kappa angles that give information about the exterior orientation of the camera are NOT needed for processing for the Standard Calibration Method. This information is used during the Accurate Geolocation and Orientation Calibration Method. For more information about the Calibration Methods: 205327965.
If there is such information, they can be added to the file by adding 3 columns after the coordinates. For more information about the definition of omega, phi, and kappa in Pix4Dmapper: 202558969.
Any projected coordinate system 

imagename,Y/Northing [meter],X/Easting [meter],Z [meter]   if the units of the system are meters

imagename,Y/Northing [feet],X/Easting [feet], z[feet]             if the units of the system are feet

Any projected coordinate system including orientation 

imagename, Y/Northing [meter],X/Easting [meter],Z [meter], omega [degrees], phi [degrees], kappa [degrees]     if the units of the system is meters

imagename, Y/Northing [meter],X/Easting [meter],Z [meter], omega [degrees], phi [degrees], kappa [degrees]      if the units of the system is feets

Any projected coordinate system including orientation and Accuracy

imagename, Y/Northing [meter],X/Easting [meter],Z [meter], omega [degrees], phi [degrees], kappa [degrees],Accuracy Horz [meter],Accuracy Vert [meter]     if the units of the system is meters

imagename, Y/Northing [meter],X/Easting [meter],Z [meter], omega [degrees], phi [degrees], kappa [degrees],Accuracy Horz [feet],Accuracy Vert [feet]     if the units of the system is feets

 

3D Robotics Flight Log 

The GPS files that 3D Robotics UAVs deliver are compatible with Pix4Dmapper and do not need any editing.

Extension Description
.txt, .log, .csv Geolocation files that 3D Robotics delivers
 
Note: The yaw, pitch, roll that the flight log may have are converted to omega, phi, kappa angles in the Image Properties Editor table.  For more information about the Image Properties Editor table: 202557949.
 
Note: The yaw, pitch, roll information is stored into the .p4d file.

 

CropCam Flight Log 

The CropCam Flight Log file is the GPS log file that CropCam UAVs deliver. It is compatible with Pix4Dmapper and it does not need any editing. 

The format is an ASCII .txt file. It uses white space to separate the characters. 
The camera is usually mounted on Servo8. 
The Camera Trigger Value corresponds to the value that the camera servo takes when an image is triggered.
The first image date corresponds to the date and time the first image is taken. The first image geolocation date corresponds to the date and time of the first image geolocation. These 2 values are used to compute the offset in milliseconds between the first image and first image geolocation, in order to correctly match a geotag with each image.

Extension Description
.txt Geolocation file that CropCAM UAV delivers

 

QuestUAV Flight Log 

The files that QuestUAV delivers are compatible with Pix4Dmapper and does not need any editing.

Extension Description
.txt, .log, .csv Geolocation files that QuestUAV delivers
 
Note: The yaw, pitch, roll that the flight log may have are converted to omega, phi, kappa angles in the Image Properties Editor table.  For more information about the Image Properties Editor table: 202557949.
 
Note: The yaw, pitch, roll information is stored into the .p4d file.

 

Tetracam Flight Log

The file exported by Tetracam's software PixelWrench2 is compatible with Pix4Dmapper and does not need any editing. 

Extension Description
.txt, .log, .csv Geolocation files that Tetracam's software PixelWrench2 delivers

 

Ground Control Points (GCP) file (optional)

The GCPs are points of the area to map with known coordinates.

Extension Description
.csv, .txt  Files used to import GCPs coordinates into a project

 

The GCP file format is a .csv or .txt file (ASCII). It contains four or six columns per line for 3D GCPs and 3 or 5 columns per line for 2D GCPs, and use a comma to separate the characters. The formats are described in the table below:

2D GCPs WGS84 geographic coordinates

label,latitude[decimal degrees],longitude[decimal degrees]

 
Example:

GCP0,46.23456,6.56114
GCP1,46.23234,6.56234

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Warning: The latitude must be in the second column and the longitude in the third one.
2D GCPs WGS84 geographic coordinates with Accuracy

label,latitude[decimal degrees],longitude[decimal degrees],Accuracy X [meter],Accuracy Y [meter]

 
Example:

GCP0,46.23456,6.56114,5,10
GCP1,46.23234,6.56234,5,10

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°

 
Information: For more information about the Accuracy202557949.
 
Warning: The latitude must be in the second column and the longitude in the third one.
2D GCPs other coordinate systems
label,X/Easting [meter],Y/Northing [meter]                                                    if the units of the system are in meters
label,X/Easting [feet],Y/Northing [feet]                                                           if the units of the system are in feet
2D GCPs other coordinate systems with Accuracy

label,X/Easting [meter],Y/Northing [meter],Accuracy X [meter],Accuracy Y [meter]     if the units of the system are in meters
label,X/Easting [feet],Y/Northing [feet],Accuracy X [feet],Accuracy Y [feet]                    if the units of the system are in feet

 
Information: For more information about the Accuracy202557949.
3D GCPs WGS84 geographic coordinates

label,latitude[decimal degrees],longitude[decimal degrees],altitude[meter]

 
Example:

GCP0,46.23456,6.56114,299.931
GCP1,46.23234,6.56234,299.823

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°.

 
Warning: The latitude must be in the second column and the longitude in the third one.
3D GCPs WGS84 geographic coordinates with Accuracy

label,latitude[decimal degrees],longitude[decimal degrees],altitude[meter],Accuracy Horz [meter],Accuracy Vert [meter]

 
Example:

GCP0,46.23456,6.56114,299.931,5,10
GCP1,46.23234,6.56234,299.823,5,10

The latitude value is between -90° and 90°.
The longitude value is between -180° and 180°.

 
Information: For more information about the Accuracy202557949.
 
Warning: The latitude must be in the second column and the longitude in the third one.
3D GCPs other coordinate systems
label,X/Easting [meter],Y/Northing [meter],z[meter]                                     if the units of the system are in meters
label,X/Easting [feet],Y/Northing [feet], z[feet]                                                if the units of the system are in feet
3D GCPs other coordinate systems with Accuracy

label,X/Easting [meter],Y/Northing [meter],z[meter],Accuracy Horz [meter],Accuracy Vert [meter]   if the units of the system are in meters
label,X/Easting [feet],Y/Northing [feet], z[feet],Accuracy Horz [feet],Accuracy Vert [feet]                      if the units of the system are in feet

 
Information: For more information about the Accuracy202557949.

 

Coordinate system file (optional)

The coordinate system file is a .prj file that contains information about a particular coordinate system. It is optional.

Extension Description
.prj File used to describe the datum and the coordinate system used

 

The information contained in the .prj file specifies the:

  • Name of Geographic coordinate system or Map projection
  • Datum
  • Spheroid
  • Prime meridian
  • Units used
  • Parameters necessary to define the map projection, for example:
    • Latitude of origin
    • Scale factor
    • Central meridian
    • False northing
    • False easting
    • Standard parallels

For more information about how to obtain or create a .prj coordinate system syntax file: 202559979.

 
Example: The content of a .prj file:

GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",
6378206.4,294.9786982],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]]]
 

 

GCP / Manual Tie Point marks file (optional)

The GCPs/Manual Tie Points need to be marked on the images. Once marked, their image coordinates can be saved into a .txt, .csv or xml file (GCP/ Manual Tie Point marks file). This allows the user to use the same GCPs/Manual Tie Point  marks next time needed to run the same project (e.g. adding new images to an existing project) without having to manually re-mark the GCPs/Manual Tie Points. 

Extension Description
.txt, .csv, .xml Files used to import GCP image coordinates

The GCP/Manual Tie Point image coordinate file can be a

Pix4D Marks file
It contains the image name, the GCP/Manual Tie Point label and the images coordinates. Optionally, it can contain the zoom level at which the points have been marked on the images (using Pix4Dmapper) and the image directory. This file can be exported from Pix4Dmapper. For more information: 204924709

The coordinate system has as origin the upper left part of the image. Its axes are oriented as shown in the image below: 

Figure 1. Image coordinate system

The GCP image coordinates are given in pixels:

imagename, GCP/Manual Tie Pointlabel, image coordinate x, image coordinate y, (optional) zoom level, (optional) image directory

 
Example: 
R0079100.JPG,mtp31,2018.3314,1621.3729,1.9755, C:\Users\pix4d\Desktop\marks 
The zoom level and the image directory are optional.
 
 
Important: It is always recommended to import the Pix4D marks file with zoom level. The zoom level at which GCPs/ Manual Tie Points are marked has an impact on the GCP/Manual Tie Point error obtained in the Quality Report. Usually the higher the zoom level, the more precisely the GCP/Manual Tie Point is marked. These GCPs/Manual Tie Points will have more impact on the reconstructed model than GCPs/Manual Tie Points marked in a lower zoom level and lower error values are expected for these GCPs.
 
Bingo text file
It contains the GCPs/Manual Tie Point image coordinates. It is an ASCII .txt file in Bingo format.

Each image is described in a block starting with the image name and ending with -99. The line containing the image name has 2 elements separated by a white space:

image_name  other_string

The other lines in the image block describe the GCP/Manual Tie Point position of the image. The line has 3 elements separated by a white space.

GCP/Manual Tie Point_name  GCP/Manual Tie Point_positionX  GCP/Manual Tie Point_positionY

The GCP/Manual Tie Point_name has to be the name of a GCP/Manual Tie Point that has already been imported/created in the project.
GCP/Manual Tie Point_positionX and GCP/Manual Tie Point_positionY are the GCP/Manual Tie Point coordinates on the image.

The coordinate system has as origin the center (Cx, Cy) of the image (not the principal point). Its axes are oriented as shown in the image below:

Figure 2. Image coordinate system

The GCP image coordinates can be given in millimeters or in pixels.

XML structure file
It is an xml file. For an example of a XML structure file: 205032219.

The coordinate system has as origin the upper left part of the image. Its axes are oriented as shown in the image below: 

Figure 3. Image coordinate system

The GCP image coordinates are given in pixels.

 

Point Cloud (optional)

A Point Cloud generated by an external source such as LiDAR technology can be used in Pix4Dmapper to generate the DSM and Orthomosaic. If such a Point Cloud is used, the Point Cloud generated by Pix4Dmapper is not taken into account for the DSM and Orthomosaic generation.

Extension Description
.xyz, .laz, .las 3D point cloud  that can be imported as an external point cloud to generate the DSM and the orthomosaic
 
Important: The external Point Cloud has to be in the same coordinate system as the project's output coordinate system.

 

Processing Area (optional)

If there is no need to generate the outputs for the entire area covered by the images, it is possible to import a file that defines the Processing Area. For more information about the Processing Area: 202558439.

The file can have any coordinate system of the Pix4Dmapper database.

Extension Description
.shp, .kml Describes the Processing Area for which the outputs will be generated
 
Important: The .shp file must contain a polygon (no polyline).

 

Radiometric calibration image (optional)

If there is need to calibrate and correct the image reflectance, taking the illumination and sensor influence into consideration, an image in which a reflectance target with known albedo values is shown can be imported. For more information: 203891879.

Extension Description
.tif, .tiff, .jpg, . jpeg Image in which the calibration target for which the albedo values are known is showh.

 

Volume measurements vertices / area

If there is need to define the volume of a specific area, it is possible to import a .shp file with this area or the vertices that define this area. This .shp file can be generated by Pix4Dmapper or by another software (GIS, CAD). For more information about how to export a volume .shp file with Pix4Dmapper: 211245943.

Extension Description
.shp Describes the area for which the volume measurement will be performed.
 
Important: When exporting a volume with Pix4Dmapper, the exported files are the volume_surfaces  that contains the area of the volume measurement and the volume_vertices that contains the vertices that define the area of the volume measurement. 

 

Regions for the Index Calculator

If there is need to define specific areas for which the Index Maps, the Index values and the Colored Index Maps will be generated, it is possible to import a .shp with the regions. 

Extension Description
.shp Describes the regions for which the Index Maps, the Index values and the Colored Index Maps will be generated.

 

Video File

Pix4Dmapper can process video frames. 

Extension Description
.avi, .mp4 Video files that can be imported into Pix4Dmapper
 
Important: 
  • It is not recommended to record videos for accurate mapping: The quality of the results will almost always be inferior to the results generated using still imagery. 
  • 4K videos from cameras such as GoPro 4 and DJI provide reasonable results.
  • Full HD videos are usually not sufficient to get reasonable results.

For more information about how to use videos for processing: 205294735.


Powered by Zendesk