Aerial Data Acquisition



Orthorectified Imagery




Topographic Map

3D Model

3D Point Cloud


CAD Data Integration

2D / 3D Site Map

Volumetric & 2D Measurement

Activity Heat Map

Plan Overlay

Feature Extraction

Crop Management


Bridge Inspection

Gas & Oil Pipe Inspection

Asset & Plant Inspection

Maintenance Survey

Rooftop Inspections / Survey

Industrial Roof Inspection

Progress Monitoring & Reporting


Claims Adjustment Insurance

Damage Assessment



Construction Planning

Construction Progress Monitoring


Activity Heat Map

Plan Overlay

Feature Extraction


Orthorectified Imagery



CAD Data Integration

2D Site Map

Volumetric & 2D Measurement

Aerial View Study

Panoramic Photo

360˚ Panoramic Virtual Tour


Epic Footy uses professional image processing software for the rectification, assembly, and correction of aerial images. The resulting orthomosaic is an image that can be analyzed in any GIS or remote sensing software. 

The relative accuracy of outputs, in general terms and without ground control points, is 1-2 times the ground sample distance (GSD) horizontally (X,Y coordinates) and 2-3 times the GSD vertically (Z coordinate). For instance, a project with a GSD of 3 cm: the horizontal accuracy is about 3-6 cm and the vertical one 6-9 cm. The point cloud, DSM and consequently the orthomosaic accuracy are also affected by the quality of the initial images and their visual content. Sharp edges, trees, reflective surfaces, certain type or roads and rooftops may present locally lower accuracy. Using ground control points, the relative accuracy may improve (especially at areas with lower overlap of difficult image content).

Absolute georeferencing


With onboard GPS on all of our drones, our orthomosaics typically have an absolute error of only half a meter. If needed, ground control points can be integrated to give centimeter precision.

Artifact removal


Artifacts can be manually edited out of the orthomosaic, in order to improve the detailed appearance.

Angle specification


If a specific viewing angle is desired, the flightplan can be designedaccordingly and the mosaic can be manually corrected for this purpose.

Other Details



If weather events such as fog or cloud cover change during the flight, the resulting orthomosaic will appear blotchy and may lead to false interpretation. We therefore prefer to fly on days with steady weather conditions. Shadows on the ground have a negative effect on key point identification and increase the contrast of the image, reducing the amount of detail that can be seen. A high-altitude cloud cover is optimal.



For moderate elevation changes, the altitude of the drone can be adjusted to conform to the landscape and provide images with a uniform resolution. Rapidly changing elevation profiles are difficult to capture at a uniform resolution and will result in heterogeneous mosaics. The ground must have a strong texture in order to identify key points and perform image stitching. Please note, the following terrains are not favorable: large bodies of water and snow fields.



Objects with sharp edges that are higher than their surroundings are sometimes poorly recognized in some images, leading to a local distortion of the image, called an artifact. Artifacts can be avoided by increasing flight altitude or by increasing image overlap, or can be removed in the post-processing.

File Formats


The Orthomosaic is delivered in GeoTiff, .las point cloud, .obj or 3D file. We can also delibver the orthomossiac in practically any other professional file format upon request at additional cost.


With GPS enabled drones, we are able to take the georeferenced images and identify millions of key-points and calculate their positions. With the high resolution aerial images, we can generate point clouds and digital surface models (DSMs).


3D Point Cloud


The most basic product of the photogrammetric process is the 3D point cloud: a set of points defined by X, Y, and Z coordinates as well as a color.


Output format:

  • “.las”.


Some examples of compatible software:

  • ArcGIS

  • Global Mapper 

  • AutoCAD

  • MeshLab

  • 3D Reshaper

  • Trimble RealWorks Viewer


Applications include:

  • Visualization

  • Surface editing

  • DSM generation

  • DTM generation

Trangulated Meshes


A filtered point cloud can be triangulated to create a mesh model.


Available Wavefront output formats:Wavefront:

  • “.obj”

  • “.ply”

  • “.las”


Some examples of compatible software:

  • AutoCAD

  • Bentley Pointools View

  • CC Viewer


Applications include:

  • Rendering in animation package

  • Small projects visualization

  • 3D printing

Raster Digital Surface Model


A raster Digital Surface Model (DSM) is a matrix assigning an altitude to each x-y coordinate and thus takes the form of a single-band image. This image (format: geoTiff) is georeferenced and can be opened in all GIS software such as: ArcGIS, Global Mapper, AutoCAD, QuantumGIS


Applications include:

  • Surface analysis

  • Volume measurements

  • Contour line generation

  • Breaklinegeneration




Shadows on the ground have a negative effect on key point identification and increase the contrast of the image, reducing the amount of detail that can be seen. A high-altitude cloud cover is optimal.

Land Cover


Forests, tall buildings, and tall thin objects such as light posts are difficult to detect because of their spatial complexity and/or stereoscopic displacement, which makes it difficult to identify key points. The result of such a failure is a sparse point cloud with insufficient detail. One solution to this challenge is to increase flight altitude, albeit at a loss of ground resolution.



Obstructions such as tall buildings, walls, or vegetation can reduce the local quality of the generated 3D model.


Epic Footy's advanced tools can measure the following:


  • Cut volumes

  • Fill volumes

  • 3D surfaces and Slopes

Accuracy of the measurements


By using aerial imagery, we can collect a high density of elevation points which result in a highly accurate volume calculation. Below are a few tests and studies that have been carried out to assess the accuracy of drones (aka unmanned aerial vehicle (UAV), unmanned aerial systems (UAS)) measuring methods for volume calculation.


In the following documents, drone image collection with Pix4D post-fight processing is compared to other methods like LiDAR or Global Navigation Satellite System (GNSS).

Once we have collected the images, they are processed with our powerful geoprocessing tools. With this software we are able to generate a high resolution elevation map and calculate the volume of specific objects.

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Frisco, Texas

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We are multimedia experts who specialize in capturing and editing stills, 360, and aerial, photography and video. We are a local 360 photography and aerial drone UAV service provider to Frisco, Mckinney, Allen, Plano, Dallas, Rowlett, Carrollton, Lewisville, The Colony, Richardson, North Dallas, Highland Village, Rockwall, Denton and the surrounding areas. 

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