BenthiCat: An opti-acoustic dataset for advancing benthic classification and habitat mapping

Fuente: arXiv
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Auteurs principaux: Rajani, Hayat, Franchi, Valerio, Valles, Borja Martinez-Clavel, Ramos, Raimon, Garcia, Rafael, Gracias, Nuno
Format: Preprint
Publié: 2025
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author Rajani, Hayat
Franchi, Valerio
Valles, Borja Martinez-Clavel
Ramos, Raimon
Garcia, Rafael
Gracias, Nuno
author_facet Rajani, Hayat
Franchi, Valerio
Valles, Borja Martinez-Clavel
Ramos, Raimon
Garcia, Rafael
Gracias, Nuno
contents Benthic habitat mapping is fundamental for understanding marine ecosystems, guiding conservation efforts, and supporting sustainable resource management. Yet, the scarcity of large, annotated datasets limits the development and benchmarking of machine learning models in this domain. This paper introduces a thorough multi-modal dataset, comprising about a million side-scan sonar (SSS) tiles collected along the coast of Catalonia (Spain), complemented by bathymetric maps and a set of co-registered optical images from targeted surveys using an autonomous underwater vehicle (AUV). Approximately \num{36000} of the SSS tiles have been manually annotated with segmentation masks to enable supervised fine-tuning of classification models. All the raw sensor data, together with mosaics, are also released to support further exploration and algorithm development. To address challenges in multi-sensor data fusion for AUVs, we spatially associate optical images with corresponding SSS tiles, facilitating self-supervised, cross-modal representation learning. Accompanying open-source preprocessing and annotation tools are provided to enhance accessibility and encourage research. This resource aims to establish a standardized benchmark for underwater habitat mapping, promoting advancements in autonomous seafloor classification and multi-sensor integration.
format Preprint
id arxiv_https___arxiv_org_abs_2510_04876
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle BenthiCat: An opti-acoustic dataset for advancing benthic classification and habitat mapping
Rajani, Hayat
Franchi, Valerio
Valles, Borja Martinez-Clavel
Ramos, Raimon
Garcia, Rafael
Gracias, Nuno
Computer Vision and Pattern Recognition
Machine Learning
I.2.6; I.4.6; I.5.1; I.5.4
Benthic habitat mapping is fundamental for understanding marine ecosystems, guiding conservation efforts, and supporting sustainable resource management. Yet, the scarcity of large, annotated datasets limits the development and benchmarking of machine learning models in this domain. This paper introduces a thorough multi-modal dataset, comprising about a million side-scan sonar (SSS) tiles collected along the coast of Catalonia (Spain), complemented by bathymetric maps and a set of co-registered optical images from targeted surveys using an autonomous underwater vehicle (AUV). Approximately \num{36000} of the SSS tiles have been manually annotated with segmentation masks to enable supervised fine-tuning of classification models. All the raw sensor data, together with mosaics, are also released to support further exploration and algorithm development. To address challenges in multi-sensor data fusion for AUVs, we spatially associate optical images with corresponding SSS tiles, facilitating self-supervised, cross-modal representation learning. Accompanying open-source preprocessing and annotation tools are provided to enhance accessibility and encourage research. This resource aims to establish a standardized benchmark for underwater habitat mapping, promoting advancements in autonomous seafloor classification and multi-sensor integration.
title BenthiCat: An opti-acoustic dataset for advancing benthic classification and habitat mapping
topic Computer Vision and Pattern Recognition
Machine Learning
I.2.6; I.4.6; I.5.1; I.5.4
url https://arxiv.org/abs/2510.04876