Measuring objects underwater has always been far more complex, time-consuming, and expensive than performing the same onshore measurements. Achieving high accuracy in these measurements demands advanced tools and highly skilled personnel.
We have developed systems based on the photogrammetry method to make it easier to perform underwater measurements. These systems are perfect when high accuracy and a high degree of detail are needed. And for a visual representation of the surveyed object. Distances, angles, surface area, or volume can be extracted from the measurements.
Close Range Photogrammetry
Close Range Photogrammetry (CRP) is an innovative technique that extracts spatial data, such as the size and position of objects, from two-dimensional images. This method is highly versatile and can be applied in various activities, including:
- Inspection of Offshore Structures: Ensuring the integrity and safety of underwater infrastructure.
- Mapping Shipwrecks: Documenting and studying historical underwater sites.
- Studying Marine Ecosystems: Monitoring and analysing underwater habitats and their inhabitants.
- Aquaculture: Monitoring and analysing the condition of fish and cages
Advantages of CRP
CRP is particularly advantageous for difficult-to-access areas, such as underwater environments. It offers remarkable accuracy, delivering results within ± 1 millimetre over a distance of 20 meters and is effective for distances over 100 meters.
Imaging Systems
Images for CRP can be acquired using different types of camera systems, each with its specific benefits:
- Single Camera Systems:
– Suitable for high-detail, static measurements.
– Ideal for capturing detailed visual representations of surveyed objects. - Stereo Camera Systems:
– Capable of obtaining 3D models of moving objects.
– Provide depth perception by capturing two images from slightly different angles.
– Useful for dynamic environments where objects are in motion. - Multi Camera Systems:
– Offer the highest accuracy and detail.
– Can cover larger areas and complex scenes more effectively.
– Superior for creating comprehensive 3D models of moving objects.
– Provide redundancy and robustness in data collection.
Benefits of CRP
- Cost-Effective: Reduces the expenses associated with underwater measurements.
- Increased Productivity: Speeds up the measurement process.
- High Accuracy and Detail: More precise and detailed than traditional methods.
For further information on the advantages of our camera systems and how they can be applied to your specific needs, visit our website: Aqualens.no
With over 20 years of experience in underwater photogrammetry, we have identified key factors crucial for obtaining reliable and precise results. These factors encompass the camera system, lighting, and image processing, among others. Learn more on our website.
We provide you with the guide to the most important factors for obtaining good results at https://www.aqualens.no/how-to-create-3d-model-using-images/
