underwater Tag

Laser 3D Sense Technology towards the market

The Laser 3D scanner technology developed and patented by the University of Girona is one step beyond the state of the art of underwater 3D perception. It is the result of a PhD thesis in Underwater Robotics and 3D Perception done by Albert Palomer and tutored by Pere Ridao, Josep Forest and David Ribas that will be soon defended.   L3S, as an easy to integrate system, will allow the end user to gather online 3D information of a target scene from a moving vehicle at a resolution where the objects can clearly be identified. Moreover, it will also allow…

Construint robots submarins al CIRS

Al llarg d’aquesta setmana té lloc el campus PRESUB on joves de tota la província venen a conèixer de primera mà com és un robot submarí i, és més, fins i tot en construeixen un! La iniciativa del departament d’Arquitectura i Tecnologia de Computadors de la UdG ja ha arribat a la tercera edició i està éssent tot un èxit.   L’objectiu bàsic d’aquests tallers és la realització d’activitats científico-tecnològiques de caire lúdic que resultin interessants i atractives que permetin incrementar el interès de la societat, i més concretament dels estudiants de secundària, per la tecnologia i que fomentin els…

Tali Hurtós defends her PhD thesis: “Forward-Looking Sonar Mosaicing for Underwater Environments”

Vehicle operations in underwater environments are frequently compromised by poor visibility conditions. The perception range of optical devices is heavily constrained in turbid waters, thus often complicating navigation and mapping tasks in environments such as harbors, bays, or rivers. A new generation of high-frequency forward-looking sonars that provide acoustic imagery at near-video frame rates have recently emerged as a promising alternative for working under these challenging conditions. In this thesis, we propose an end-to-end mosaicing framework tailored to the characteristics of forward-looking sonar imagery in order to build consistent overviews of planar underwater areas regardless of water visibility. Our solution...