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Residential density and proximity to Metrorail analysis

WSSI develops 3-D data sets to help engineers, surveyors, and archeologists interact with project sites remotely. Our Reality Capture services use unmanned aerial vehicle (UAV or drone) photogrammetry along with aerial LiDAR and 3-D laser scanning systems. Technology is one of the ways we measure, inspect, and monitor the changing lay of the land.

Reality Capture and UAV Services


Reality capture refers to the process of digitizing a location or object into 3D models that accurately represent real world conditions.  It’s changing the way we measure, inspect, and monitor the world around us.

Utilizing Unmanned Aerial Vehicles (UAVs) photogrammetry, aerial LiDAR, and 3D laser scanning systems, WSSI can efficiently acquire and develop accurate 3D data sets. These data sets can be processed into point clouds, which allow our surveyors, archeologists and engineers to interact with data as if they were physically in the field. Capturing the entirety of a site through reality capture is advantageous for a variety of reasons.


·         Reality capture technologies can acquire detail that was previously unobtainable with conventional methods. (examples: true surface qualities, dense measurements, building facades, piping/electrical as builts).


·         Laser scanning and small Unmanned Aerial Systems (sUAS) can digitally acquire a project location in a fraction of the time required by conventional means. (example: 100’s of acres a day with far more detail)


·         Shifts workload into office where client cost is reduced, and workflows are more efficient

o   Allows WSSI staff to be more readily available to our clients


·         Scopes of projects expand – Reality capture allows you to virtually revisit a location and extract additional data required to aid in design.

o   Allows you to revisit the existing conditions as of the date the location was surveyed. This also allows the preservation of historic monuments, buildings, and artifacts.

WSSI surveyors have integrated reality capture technologies into workflows to access areas that are considered too dangerous for conventional crews. On a recent project, an access of stream sediment into an existing pond made it unsafe to survey the existing conditions and was inaccessible for ground crews. Due to the nature of the work and project location/geography, it was not practical to use muck boots or float tube. WSSI surveyors utilized an Unmanned Aerial Vehicle (UAV) to conduct and execute multiple photogrammetry missions. The data was processed utilizing Pix4D and developed into survey-grade point clouds. This allowed WSSI to develop a 3D model – a snapshot of the existing project conditions - and extract the relevant data needed for 3D design. This project would not have been possible without the use of WSSI’s UAV program.

Additionally, WSSI surveyors have implemented drone technologies to map large projects in record time. This allows WSSI to provide highly detailed topographical maps in an efficient manner.  The client receives a quality deliverable that exceeds their expectations in a time frame that meets their needs.



WSSI Archeological Department

WSSI Archeology Department staff are utilizing Agisoft software to create 3D spatial data of historic features or sites to help preserve the original shape, colors and dimensions before being fully unearthed.  This gives our historians and office staff the ability to go back to any feature and acquire any data for post-processing and final analysis.   Archeology staff along with our Survey staff can tie the features to any coordinate system to produce the 3D model of feature with real relative horizontal and vertical coordinates.

This workflow enables our office staff to process thousands of site or feature images on a desktop computer to produce a photogrammetric data set and 3D models.  These models can be processed from RGB or multispectral cameras systems and placed into a dense point cloud, textured polygonal models, georeferenced true orthomosaics and DSMs/DTMs.  Further post-processing allows staff to eliminate shadows or extract texture artifacts from the models.   Output data can then go to our client or museums in formats that will work in an abundant of programs. 


WSSI has performed

·         Drone Video & Photography Services

·         Point Cloud Registration and Post-Processing

·         Site Monitoring

·         Survey-Grade Orthophotographs

·         Point Cloud Developed Planimetric and Topographic Mapping




-       UAV Topographic surveys (Jefferson Farm and College Lake)

-       Site videography of client’s sites to show desire to show the value of the land (Moorefield Station)

-       Real Estate property videos and aerial photographs – Buckland Farm

-       Site - existing conditions, construction and post construction aerial monitoring (Reston, Horst and Zartler

-       Aerial site evaluations for potential construction and Visual Refence of New High Rise – Crystal Springs

-       Updated Aerial Imagery to support habitat analysis reports – Delmarva and PECO

-       Up to date aerial photography for Construction sites – Pool House

-       Aerial videography and imagery for Dam Removal monitoring – Pigg River

-       Aerial videography and imagery of Archeological features – Ships in warehouse from Alexandria

-       Aerial tree health inspections

-       Waynesboro Tree Conference UAV Presentation – Paul Szarowicz and Sara Wills

-       Pix-4D and Reality Capture training – Jim Quirin

-       UAV Class/Presentation and Usage for Public Safety – Jim Quirin

-       Point Cloud to Civil 3D Training – Jim Quirin

-       FAA Part 107 Certified Pilots – 8 Staff with 3 through our required inhouse curriculum

-       Use Kittyhawk (Professional Drone Fleet Management Software) to manage flight hours, waivers, safety and flight check sheets, UAV maintenance and risk assessment forms.

-       FAA Part 107 trained staff through Crossflight Sky Solutions



WSSI can provide the following UAV and reality capture services now with the current staff.


·         Terrestrial Panoramic Photographs

·         3D Virtual Tours

·         Drone & Laser Scanning Point Clouds

·         Accurate LiDAR/UAV as-builts and existing conditions models – allows for virtual design

·         Virtual spatial/collision analysis

·         LiDAR Data Analysis, Manipulation, Registration, and Optimization

·         Real-time inspections to track construction progress

·         Cut/Fill analysis on construction sites and quarries

·         Wildlife surveys (nests counts to vegetation and habitat analysis)

·         Consulting - LiDAR & Photogrammetry Training

·         Consulting – UAV program development (Regulation/Safety/Best Practices)

·         Consulting – UAV flight and post processing training

·         Consulting – LiDAR program development (Methodology/Best Practices)

·         Consulting – HD Scanning (Terrestrial LiDAR) and Processing


Future example imagery/video – I think it’d be best to create a video of the Gainesville office. Create an orthomosaic of the building. Additionally, create some panoramic photographs and develop them into a 3D tour of the site. We can then scan a portion of the building to create some LiDAR data.


Marzipano is open source software for the 3d tour. We can use Pix4D/Cyclone for the LiDAR and Ortho


Color infrared imagery with surveyed and photo-interpreted wetlands

WSSI maintains a library of the latest digital land data for the Mid-Atlantic, and manages an extensive compilation of aerial photographs dating from 1937 to present along with hundreds of scanned maps back to 1624.  Our staff draw on our rich internal GIS library to produce accurate, easy to use maps to support project development at any phase.

Our GIS and mapping services include:

1903 Baist map of Washington, DC

  • Digital imagery and map overlays

  • Aerial photograph interpretation

  • Land cover mapping

  • Aerial and spatial land database maps

  • Desktop wetland reconnaissance

  • Resource Protection Area (RPA) mapping

  • Environmental analyses for rezoning

  • Feasibility studies

  • Hydrologic modeling base maps

  • Environmental modeling

  • Watershed delineations and analysis mapping

  • Line of sight and viewshed profile maps

  • Historic deed and plat overlay maps

  • Site suitability analysis and maps

  • Project location and direction maps

  • Current land use and future zoning maps

  • Retail/commercial location analyses

  • Presentation graphics and maps