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AI for seabed mapping project shortlisted for Knowledge Transfer Partnership award

Geoacoustics logo in blue and grey - lines representing sonar waves are above the word GeoAcoustics

Great Yarmouth, UK: GeoAcoustics Ltd in partnership with the University of East Anglia’s School of Computing Sciences has been named as a finalist in the category of Technical Excellence at the national Knowledge Transfer Partnership awards, following the collaborative development of an innovative AI solution to improve the speed and ease of seabed mapping in real-time.

Seabed mapping is used to produce a bathymetric (or water depth) profile of a given area of seabed using sonar technology. Sonar works by sending sound pulses into the water and measuring the echoes reflected from the seabed and any underwater structures that may be present. However, many unwanted data points are also generated and these need to be filtered out after the survey to produce a true representation of the seabed profile which can be a resource-intensive, expensive and time-consuming task.

GeoAcoustics Ltd, based in Great Yarmouth and a manufacturer of high-quality sonar equipment for seabed mapping, approached UEA’s School of Computing Sciences. A feasibility study was first undertaken to see if AI technology could automatically remove unwanted noise from sonar data. This was carried out by two MSc Computing Science students, supervised by Dr. Wenjia Wang and Dr. Ben Milner, and a team from GeoAcoustics.

Following encouraging results, further research and development grants were awarded; an Enabling Innovation: Research To Application (EIRA) award, and an Innovate UK Knowledge Transfer Partnership (KTP). These enabled an AI module to be developed which was then evaluated using various benchmark data sets and sea trials.

This established that the AI was able to produce accurate and consistent results comparable to that of an experienced surveyor, without needing any human intervention and operating at a fraction of the time. The AI module was integrated into the company’s existing software and is capable of processing survey data in real-time, saving days or weeks of post-processing by trained human users.

Dr. Danny Websdale, the Knowledge Transfer Partnership Senior Research Associate at University of East Anglia for the duration of the AI development project and now an AI/ML Research Scientist at GeoAcoustics Ltd said: “Designing an AI system that can process and quality control sonar data was a challenging process over the course of two and a half years, but together with the project team we were able to meet the intended goals and even exceed them by developing a system that provides real-time data on board the survey vessel, which is a unique capability that improves data quality while saving GeoAcoustics’ customers time and money.”

The new system has since been released by GeoAcoustics Ltd to their customers and has put the company into a world-leading position in their industry. Dr. Richard Dowdeswell, Chief Operating Officer at GeoAcoustics Ltd said: “The AI system was integrated in our flagship seabed mapping product GeoSwath 4 and provided to customers as a free update. Feedback has been wholly positive, and we’re delighted with how the KTP, and the excellent collaboration with Danny and the UEA School of Computing Sciences, turned out.”

Dr. Wenjia Wang, Associate Professor of Artificial Intelligence and Course Director of MSc Computing Science at UEA, said: “This successful project represents an acknowledgment not only of the cutting-edge knowledge and skills of staff and students within UEA’s School of Computing Sciences, but also the ways in which we can further develop relationships with businesses to produce innovative real-world solutions that are recognised nationally and internationally as sector leading.”

The AI project, which was graded ‘Outstanding’ by Innovate UK, has been named as one of three finalists in the Technical Excellence category at the national KTP Awards, with winners announced on Thursday 18 October.



Saul Trewern

Oceanspace Communications

Tel: 07312 105130

About GeoAcoustics Ltd

GeoAcoustics Ltd delivers innovative, field-proven technologies for customers working in the inland waterway and marine hydrographic surveying, dredging and marine-research fields. Headquartered in Great Yarmouth, UK, with a global presence through a network of channel partners, the company specialises in the design, development, manufacture, and commissioning of advanced side scan, bathymetry, and sub-bottom profiling sonar-systems.

GeoAcoustics Ltd has been a partner for the offshore energy, subsea, and marine survey sectors since 1978 and has had two different corporate owners in this time. The company returned to independent ownership in December 2019, and continues to develop innovative products, like sonar technology that is capable of outperforming multibeam echo sounders and AI systems that unlock IHO S-44 standard marine data in real time.

A multi-coloured relief map of the sea floor showing sand dunes in green blue and pink
This image details sandwaves in the Lowestoft Stanford Channel (UK) using data acquired by the AI-powered GeoSwath 4 bathymetric sonar.

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Sept 2023 - Press Release - KTP Awards
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Sept 2023 - Press Release - KTP Awards
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