Photogrammetric Imaging for 3D Asset Model: Biograd Port (ROV, UAV)

The port of Biograd, situated in the northern part of the Adriatic Sea, is a crucial infrastructure asset for the region. The port covers a vast area of 33,868 m2, including a land area of 4,441 m2 and a sea area of 29,427 m2.

After 40 years of use, the port had reached the end of its life cycle, and it was essential to assess its current condition to plan for future interventions.

To accurately understand the real situation on the ground, the client needed an efficient and comprehensive approach to data collection.

Photogrammetric Imaging for 3D Asset Model: Planning of Future Operations

Therefore, the client chose to use photogrammetric imaging to cover all the fortifications and foundations of the port to confirm their construction condition.

Photogrammetric recording is a process of collecting data through photographs and other imagery sources and converting them into measurable 3D models.

The challenge of photogrammetry in shallow water with strong sunlight is the appearance of the so-called zebra spot, which makes collecting data even more difficult.

To overcome this challenge, the project utilized:

  • automatically navigated divers,
  • internally developed carbon rod with a pair of cameras,
  • a double INU unit that also supports RTK positioning,
  • and unmanned aerial vehicles (drones) during the implementation phase.

The final 3D model and rendering removed the sea and ships from the environment, enabling the client to view all surfaces of the model clearly.

Using this model, all damages were easily visible, marked, measured, and studied better, and the precision level of measurement was as accurate as 1 cm in relation to the situation on the ground.

The project was completed relatively quickly, and the resulting documentation will be used for high-quality and correct planning of future operations on the building.

This comprehensive approach to data collection enables the client to monitor the building over time, even during the reconstruction, construction, and maintenance process.

Potential dangers can be predicted and remedied in time, and the client can react promptly to any changes or events under the sea.

Creating a Comprehensive Digital Twin of Biograd Port

The digital 3D asset model, also known as a digital twin, can be re-recorded using the same methods to highlight all the changes that have occurred in the time between each recording.

All stakeholders involved in the project can easily access the model and exchange information within the system.

The Biograd port project is an excellent example of the effective use of photogrammetric imaging in shallow water environments, providing valuable insight into the real situation on the ground.

The resulting digital twin can help plan for future interventions, monitor the building over time, and prevent potential dangers.

If you have any questions or would like to learn more about the Biograd port project and photogrammetric imaging for 3D asset model creation, please do not hesitate to contact us.

We are here to help and provide you with the information you need.