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Alberto Elfes

10 accepted papers

2018

Elastic LiDAR Fusion: Dense Map-Centric Continuous-Time SLAM

ICRA 2018poster

The concept of continuous-time trajectory representation has brought increased accuracy and efficiency to multi-modal sensor fusion in modern SLAM. However, regardless of these advantages, its offline property caused by the requirement of global batch optimization is critically hindering its relevan…

Cited by 120SourceScholar
2018

Magneto: A Versatile Multi-Limbed Inspection Robot

IROS 2018poster

In this paper we present the design and control strategies of a novel quadruped climbing robot (named Magneto) with three degrees of freedom (3-DOF) actuated limbs and a 3-DOF compliant magnetic foot. By exploiting its high degrees of freedom, Magneto is able to deform its body shape to squeeze thro…

Cited by 77SourceScholar
2017

Real-time autonomous ground vehicle navigation in heterogeneous environments using a 3D LiDAR

IROS 2017poster

The ability to drive autonomously in heterogeneous environments without GPS, pattern identification (e.g. road following), or artificial landmarks is key to field robotics. To address this challenge, we present a complete waypoint navigation framework for unmanned ground vehicles. A Velodyne PUCK VL…

Cited by 103SourceScholar
2017

The Multilegged Autonomous eXplorer (MAX)

ICRA 2017poster

To address the goal of locomotion in very complex and difficult terrains, the authors are developing a new class of Ultralight Legged Robots. This paper presents the Multilegged Autonomous eXplorer (MAX), an ultralight, six-legged robot for traversal and exploration of challenging indoor and outdoor…

Cited by 28SourceScholar
2016

Differential jumping: A novel mode for micro-robot navigation

ICRA 2016

Jumping is an effective navigation mode for micro-robots. Recent research has addressed significant challenges that exist in developing reliable, energy efficient, light weight micro actuation mechanisms, mostly focused on a single jump. However, there has been limited exploration of planning strate

Cited by 7SourceScholar
2016

Real-time monocular obstacle avoidance using Underwater Dark Channel Prior

IROS 2016poster

In this paper we propose a new vision-based obstacle avoidance strategy using the Underwater Dark Channel Prior (UDCP) that can be applied to any Unmanned Underwater Vehicle (UUV) equipped with a simple monocular camera and minimal on-board processing capabilities. For each incoming image, our metho…

Cited by 29SourceScholar
2015

Automatic restoration of underwater monocular sequences of images

IROS 2015poster

Underwater environments present a considerable challenge for computer vision, since water is a scattering medium with substantial light absorption characteristics which is made even more severe by turbidity. This poses significant problems for visual underwater navigation, object detection, tracking…

Cited by 31SourceScholar
2015

Energetics-informed hexapod gait transitions across terrains

ICRA 2015poster

Legged robots offer the potential of locomotion across various types of terrains. Different terrains require different gait patterns to enable greater traversal efficiency. Consequently, as a legged robot transitions from one type of terrain to another, the gait pattern should be adapted so as to ma…

Cited by 72SourceScholar