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Alejandro Fontán

6 accepted papers

2025

Image-Based Relocalization and Alignment for Long-Term Monitoring of Dynamic Underwater Environments

IROS 2025

Effective monitoring of underwater ecosystems is crucial for tracking environmental changes, guiding conservation efforts, and ensuring long-term ecosystem health. However, automating underwater ecosystem management with robotic platforms remains challenging due to the complexities of underwater ima

Cited by 3SourcecodeScholar
2025

VSLAM-LAB: A Comprehensive Framework for Visual SLAM Methods and Datasets

IROS 2025

Visual Simultaneous Localization and Mapping (VSLAM) research faces significant challenges due to fragmented toolchains, complex system configurations, and inconsistent evaluation methodologies. To address these issues, we present VSLAM-LAB, a unified framework designed to streamline the development

Cited by 4SourcecodeScholar
2024

Forward Prediction of Target Localization Failure Through Pose Estimation Artifact Modelling

RA-L 2024

For safety critical applications the ability of localization systems to self-assess their own performance and know when they are failing is as important as absolute accuracy. Previous methods have self-assessed current system performance, identifying failure after it occurs. We propose to instead pr

Cited by 0SourceScholar
2023

SID-SLAM: Semi-Direct Information-Driven RGB-D SLAM

RA-L 2023

This work presents SID-SLAM, a complete SLAM framework for RGB-D cameras. Our main contribution is a semi-direct approach that, for the first time, combines tightly and indistinctly photometric and feature-based image measurements. Additionally, SID-SLAM uses information metrics to reduce the state

Cited by 16SourceScholar
2022

Model for Multi-View Residual Covariances Based on Perspective Deformation

RA-L 2022

In this work, we derive a model for the covariance of the visual residuals in multi-view SfM, odometry and SLAM setups. The core of our approach is the formulation of the residual covariances as a combination of geometric and photometric noise sources. And our key novel contribution is the derivatio

Cited by 9SourceScholar
2021

DOT: Dynamic Object Tracking for Visual SLAM

ICRA 2021poster

In this paper we present DOT (Dynamic Object Tracking), a front-end that added to existing SLAM systems can significantly improve their robustness and accuracy in highly dynamic environments. DOT combines instance segmentation and multi-view geometry to generate masks for dynamic objects in order to…

Cited by 91SourceScholar