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SPH Engineering Launches Circlegrammetry: A Game-Changer in Drone Photogrammetry

UgCS: Flight Planning & Control
October 9, 2024

Riga, Latvia, October 2024 — Today, SPH Engineering announces the official release of its new groundbreaking photogrammetry solution: Circlegrammetry. The tool is set to revolutionize the way drone operators capture data for 3D modeling and mapping, offering unprecedented efficiency, accuracy, and speed.

Circlegrammetry was developed in direct response to the needs of professional pilots. For years, traditional grid-based flight patterns struggled to capture crucial angles, leading to less detailed 3D models. Circlegrammetry solves this by introducing an innovative algorithm that transforms the way drones capture imagery.

Unlike traditional grid or double-grid patterns, Circlegrammetry enables drones to fly in circular patterns, with the camera angled between 45 and 70 degrees toward the center of each circle. This method captures images from more angles in fewer flights, ensuring greater precision and reducing both flight time and data redundancy.

Circlegrammetry tool in UgCS software
Figure 1. Aerial photo from the survey area.
Figure 2. Results from a standard oblique area scan (double-grid) planned in DJI Pilot 2. Altitude: 37 meters, processed in Metashape.
Figure 3. Results from a Circlegrammetry mission planned in UgCS software. Altitude: 37 meters, processed in Metashape using identical settings.

Moreover, Circlegrammetry allows flights at lower altitudes compared to traditional double-grid photogrammetry methods. Double-grid oblique missions often require the drone to fly outside the surveyed area, which isn’t always feasible due to surrounding obstructions like trees. With Circlegrammetry, data can be successfully gathered from an altitude of just 20 meters, whereas a double-grid scan in DJI Pilot 2 at the same altitude would have risked collision with nearby obstacles.

Circlegrammetry introduces a new era of aerial mapping, offering key advantages over traditional grid-based methods.

  • Increased coverage. Circlegrammetry allows to capture images from more angles than traditional grids, improving the accuracy of 3D models, especially for vertical structures and complex geometries.
  • Shorter flight times. With overlapping orbits, Circlegrammetry reduces the need for multiple grid-based missions, enabling faster flights while maintaining high-quality data.
  • Less data processing overhead. By minimizing excessive image overlap, Circlegrammetry cuts down on data processing times, delivering quicker results with fewer images.
  • Adaptability to low altitudes. Circlegrammetry allows safe, detailed data capture at lower altitudes, overcoming limitations posed by obstacles in standard grid methods.

The tool is going to be especially beneficial in industries such as construction, environmental monitoring, and asset inspection, where capturing fine details is critical.

Circlegrammetry is available as part of the UgCS 5.5 software release. Experience the power of this revolutionary tool today with a free trial and see firsthand how it transforms drone photogrammetry, delivering faster, more accurate results.

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