by: Nathan Feger, Aerial Imaging Coordinator
As the technology of photogrammetry advances, businesses must take full advantage of the resources available to provide customers with the very latest in products, services and support to maintain an edge in the world. Through the use of the latest software and our nadir and oblique imagery, ControlCam is working towards our goal to be able to provide customers with more options for their specific needs to track or plan information on their projects through the use of 3D models, giving customers the ability to use geo-referenced high density point clouds, mesh models, and production based modeling to facilitate a project’s needs.
Through our 2-dimensional multi view imagery, we can derive a 3 dimensional point cloud model that is geo-referenced through the IMU and GPS data collected with the images in real time. This data can be delivered into many output formats and contains a variety of geometric information on locations or specific objects like buildings, construction sites, and agriculture fields. The commercial applications are vast and include a wide variety of industries such as oil and gas, power, port authorities and shipping entities, drainage and hydrology patterns, forestry, and many other areas where accurate measurements and detailed information is needed. ControlCam provides this data by processing the images through specific softwares that use various mathematical algorithms to clean and analyze the data to provide a 3 dimensional model built from colored points on X,Y,Z coordinates. From there, the data can be imported into many CAD programs and design programs like Google’s Sketchup.
Fig 1. Point Cloud of the Port Of Palm Beach. © Control Cam 2014
Another way to provide information for customers is the use of turning these point clouds into triangulated mesh models, by connecting the coordinated points into three point triangle faces to give a more solid version of the projected area, and allowing specific objects and buildings to become edited and removed, or other objects, such as future proposals to be added to the model to check measurements and other engineering or architectural needs.
Fig 3: Triangulated Mesh, Port of Palm Beach, FL. ©Control Cam 2014
The goal of generating highly accurate and geo-referenced models is and continues to be a fulfilling challenge, with a team of motivated technicians; we continue to explore the latest ways to provide clients with cost effective advanced options in the latest ways to visualize their data.