Results 41 to 50 of about 6,077 (166)

Standalone and embedded stereo visual odometry based navigation solution [PDF]

, 2015
© Cranfield University, 2014This thesis investigates techniques and designs an autonomous visual stereo based navigation sensor to improve stereo visual odometry for purpose of navigation in unknown environments. In particular, autonomous navigation in a
Chermak, Lounis
core  

Virtual Elastic Tether: A New Approach for Multi‐Agent Navigation in Confined Aquatic Environments

Journal of Field Robotics, EarlyView.
ABSTRACT Underwater navigation is a challenging area in the field of mobile robotics due to inherent constraints in self‐localization and communication in underwater environments. Some of these challenges can be mitigated by using collaborative multi‐agent teams.
Kanzhong Yao, Xueliang Cheng, Keir Groves, Barry Lennox, Ognjen Marjanovic, Simon Watson   +5 more
wiley   +1 more source

Visual 3-D SLAM from UAVs

, 2009
The aim of the paper is to present, test and discuss the implementation of Visual SLAM techniques to images taken from Unmanned Aerial Vehicles (UAVs) outdoors, in partially structured environments.
Campoy Cervera, Pascual, Martínez Luna, Carol Viviana, Mondragon, Ivan F., Olivares Méndez, Miguel Ángel, Sebastian y Zuñiga, Jose Maria, Artieda, Jorge, Artieda Trigueros, Jorge, Correa Caicedo, Juan Fernando, Sebastian, Jose M., Correa, Juan F., Mondragon Bernal, Ivan Fernando, Correoa, Juan F., Martinez, Carol, Olivares Méndez, Miguel A., Campoy, Pascual   +14 more
core   +1 more source

Control System for the Navigation of the Agricultural Robots: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía, Hugo Rafacho Fernandes, Daniel Albiero, Angel Pontin Garcia   +3 more
wiley   +1 more source

Online Refractive Camera Model Calibration in Visual Inertial Odometry [PDF]

This paper presents a general refractive camera model and online co-estimation of odometry and the refractive index of unknown media. This enables operation in diverse and varying refractive fluids, given only the camera calibration in air.
Mohit Singh, Mohit Singh, Alexis, Konstantinos   +1 more
core   +3 more sources

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

Visual Inertial Odometry with Sparse Deep Learning

, 2022
In the field of indoor navigation, visual and inertial sensors are essential to localizing a robot. Visual Inertial Odometry (VIO) systems try to figure out the position and orientation of a robot by analyzing data from cameras and inertial sensors.
Saat, Berke
core  

Bare-Metal Visual-Inertial Odometry [PDF]

, 2023
The utilisation of cameras as guiding sensors for state estimation has become increasingly prevalent during the last two decades with methods such as visual odometry (VO), visual-inertial odometry (VIO) and simultaneous localisation and mapping (SLAM ...
Gangstad, Simen
core  

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, EarlyView.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

ESVIO: Event-based Stereo Visual Inertial Odometry

, 2023
Event cameras that asynchronously output low-latency event streams provide great opportunities for state estimation under challenging situations. Despite event-based visual odometry having been extensively studied in recent years, most of them are based ...
Guan, Weipeng, Chen, Peiyu, Lu, Peng
core   +2 more sources