Article
Biology
Joe Wynn, Bo Leberecht, Miriam Liedvogel, Lars Burnus, Raisa Chetverikova, Sara Doege, Thiemo Karwinkel, Dmitry Kobylkov, Jingjing Xu, Henrik Mouritsen
Summary: The role of inherited orientation programmes in determining migratory routes of birds is well understood, but not much is known about the influence of inherited information on return migration. This study shows that juvenile Eurasian blackcaps, which have never left northwest Europe, exhibit significant spring orientation in a direction similar to that expected based on ringing recoveries. It suggests that birds may inherit an orientation programme for both spring and autumn migration, and that inherited spring migratory trajectories could be accurate enough for targeting breeding sites.
Article
Biology
Francisco J. Diego-Rasilla, John B. Phillips
Summary: This study reveals that newts rely on light and the ambient magnetic field during evening twilight to determine their home direction, as the temporal variation in the magnetic field is minimal during this period. Additionally, it shows that newts use a light-dependent magnetic compass to align a 'map detector' relative to the magnetic field and obtain map information for orientation.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Computer Science, Artificial Intelligence
Adam Niewola
Summary: This article presents an improved method for mobile robot localization in GPS-denied scenarios. By using Gaussian mixture models and point-by-point extended Kalman filter, high-precision localization can be achieved in rough terrain and outdoor nonurbanized environment.
IEEE INTELLIGENT SYSTEMS
(2022)
Article
Biology
Richard Massy, Karl R. Wotton
Summary: Daytime migrants use the position of the sun to navigate, compensating for its changing position throughout the day. Even with 80% accuracy, a high degree of efficiency in migration can be achieved. The effectiveness of different modes of time compensation varies with latitude.
Article
Engineering, Electrical & Electronic
Peng Xu, Jianhua Liu, Xiangyu Liu, Xinyu Wang, Jiaxi Zheng, Siyuan Wang, Tianyu Chen, Hao Wang, Chuan Wang, Xianping Fu, Guangming Xie, Jin Tao, Minyi Xu
Summary: A self-powered triboelectric palm-like tactile sensor is designed to mimic the structure and texture of sea otters' palms, enabling real-time detection of external loads underwater and high-frequency contact stability, making it a promising tool for underwater tasks.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Biology
Richard Massy, Will L. S. Hawkes, Toby Doyle, Jolyon Troscianko, Myles H. M. Menz, Nicholas W. Roberts, Jason W. Chapman, Karl R. Wotton
Summary: The study found that hoverflies use a time-compensated sun compass as their primary navigational mechanism during migration, and they tend to fly south and adjust their orientation under clear and sunny conditions.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Peng Xu, Jiaxi Zheng, Jianhua Liu, Xiangyu Liu, Xinyu Wang, Siyuan Wang, Tangzhen Guan, Xianping Fu, Minyi Xu, Guangming Xie, Zhong Lin Wang
Summary: The growth of underwater robotic applications has created a need for effective tactile sensing. The underwater 3D tactile tensegrity (U3DTT) proposed here uses soft self-powered triboelectric nanogenerators and deep learning to measure and distinguish perturbations in real time. It can provide collision protection and has advantages of multiple degrees of freedom and fast response times when integrated with underwater vehicles. The developed U3DTT shows promising technology in vehicles with tactile feedback.
Article
Computer Science, Artificial Intelligence
G. C. H. E. de Croon, C. De Wagter, T. Seidl
Summary: Researchers have proposed a new method for robots to estimate distances between objects by their visual appearance, which has been successfully implemented on a small flying robot. This approach results in improved performance in tasks such as landing and obstacle avoidance.
NATURE MACHINE INTELLIGENCE
(2021)
Article
Multidisciplinary Sciences
M. Jerome Beetz, Christian Kraus, Basil el Jundi
Summary: The study identified goal-direction neurons in the butterfly brain that specifically encode the insect's desired flight direction during spatial orientation.
NATURE COMMUNICATIONS
(2023)
Article
Robotics
Tiziano Guadagnino, Xieyuanli Chen, Matteo Sodano, Jens Behley, Giorgio Grisetti, Cyrill Stachniss
Summary: This paper proposes a novel approach that utilizes the intensity channel of 3D LiDAR scans to accurately estimate ego-motion at a high frequency. The method extracts sparse salient points from intensity images using data-driven feature extraction architectures, originally designed for RGB images, and computes the relative pose between successive scans. Experimental evaluation demonstrates that the proposed approach provides reliable ego-motion estimation at a much higher frequency than the sensor frame rate, while improving estimation accuracy online.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Article
Robotics
Jiawei Mo, Md Jahidul Islam, Junaed Sattar
Summary: This paper proposes a fast and accurate stereo visual SLAM approach that does not rely on feature detection and matching. By extending monocular Direct Sparse Odometry (DSO) to a stereo system and optimizing scale, a computationally efficient and robust method is achieved. Furthermore, the approach improves SLAM accuracy by incorporating loop closure and LiDAR scan simulation techniques.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Article
Robotics
Ming Xu, Niko Snderhauf, Michael Milford
Summary: Research has focused on improving pose refinement step, but work on coarse localization stage has mainly centered on increasing invariance to appearance change rather than improving loose error tolerances. This study proposes two methods to enhance localization accuracy of the coarse localization stage significantly, while maintaining state-of-the-art performance under severe appearance change.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2021)
Article
Robotics
Yinlong Liu, Guang Chen, Alois Knoll
Summary: This research focuses on estimating camera orientation from a set of 2D/3D line correspondences, a major part of the Perspective-n-Line (PnL) problem. By investigating globally optimal camera orientation estimation algorithms, the study aims to achieve certifiably optimal solutions from outlier-contaminated data.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2021)
Article
Robotics
Ming Xu, Tobias Fischer, Niko Sunderhauf, Michael Milford
Summary: Probabilistic state-estimation approaches provide a principled foundation for localization systems, and the new probabilistic topometric localization system effectively addresses the shortcomings of existing systems, achieving superior performance in the presence of appearance change and route deviations.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2021)
Article
Robotics
Zheng Huai, Guoquan Huang
Summary: This paper proposes a novel information-based estimator, R-VIO2, to improve efficiency and robustness in Robocentric visual-inertial odometry (R-VIO). By using square-root expression and incremental QR-based update combined with back substitution, the numerical stability and computational efficiency are significantly boosted. Additionally, the spatial transformation and time offset between visual and inertial sensors are calibrated online to enhance the robustness of the estimator.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Article
Biology
John D. Kirwan, Michael J. Bok, Jochen Smolka, James J. Foster, Jose Carlos Hernandez, Dan-Eric Nilsson
JOURNAL OF EXPERIMENTAL BIOLOGY
(2018)
Article
Biology
David Wilby, Samuel Riches, Ilse M. Daly, Andrew Bird, Matthew Wheelwright, James J. Foster
JOURNAL OF EXPERIMENTAL BIOLOGY
(2018)
Review
Multidisciplinary Sciences
James J. Foster, Shelby E. Temple, Martin J. How, Ilse M. Daly, Camilla R. Sharkey, David Wilby, Nicholas W. Roberts
Article
Biology
James J. Foster, John D. Kirwan, Basil el Jundi, Jochen Smolka, Lana Khaldy, Emily Baird, Marcus J. Byrne, Dan-Eric Nilsson, Sonke Johnsen, Marie Dacke
JOURNAL OF EXPERIMENTAL BIOLOGY
(2019)
Article
Multidisciplinary Sciences
Marie Dacke, Adrian T. A. Bell, James J. Foster, Emily J. Baird, Martin F. Strube-Bloss, Marcus J. Byrne, Basil el Jundi
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2019)
Article
Biology
Myriam Franzke, Christian Kraus, David Dreyer, Keram Pfeiffer, M. Jerome Beetz, Anna L. Stockl, James J. Foster, Eric J. Warrant, Basil el Jundi
JOURNAL OF EXPERIMENTAL BIOLOGY
(2020)
Article
Biology
Peter Olsson, Robin D. Johnsson, James J. Foster, John D. Kirwan, Olle Lind, Almut Kelber
JOURNAL OF EXPERIMENTAL BIOLOGY
(2020)
Article
Biochemistry & Molecular Biology
James J. Foster, Claudia Tocco, Jochen Smolka, Lana Khaldy, Emily Baird, Marcus J. Byrne, Dan-Eric Nilsson, Marie Dacke
Summary: Increasing global light pollution poses a threat to the night-time darkness crucial for many animal species' behavior and navigation. Animals relying on celestial cues are disrupted by light pollution, forcing them to rely on artificial lights for orientation, leading to increased competition and reduced dispersal efficiency. This could significantly hinder vital night-time journeys for various species relying on the night sky for orientation and migration.
Article
Biodiversity Conservation
Claudia Tocco, James Foster, Nic Venter, Blair Cowie, Danica Marlin, Marcus Byrne
Summary: This study found that elevated atmospheric CO2 levels negatively impacted the growth and survival of tunnelling dung beetles, resulting in longer developmental times, increased mortality, reduced adult size and mass, likely due to increased competition for oxygen and nutrients between soil microbiota and subterranean insects caused by elevated CO2 levels.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biology
Lana Khaldy, James J. Foster, Ayse Yilmaz, Gregor Belusic, Yakir Gagnon, Claudia Tocco, Marcus J. Byrne, Marie Dacke
Summary: This study investigates the weighting relationship of directional information in the heading direction network of the dung beetle Kheper lamarcki by manipulating the intensity and degree of the sun and polarisation pattern cues. The results suggest that the dung beetle likely relies on Bayesian reasoning, assigning the highest weight to directional information with the highest certainty at a given moment.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Neurosciences
Anna Lisa Stoeckl, James Jonathan Foster
Summary: This article explores the impact of light pollution from electric lighting on nocturnal animal behavior and proposes an animal-centered analysis method based on environmental imaging, which predicts the ability of nocturnal animals to extract information under different levels of light pollution by considering light adaptation and visual system parameters.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2022)
Article
Behavioral Sciences
Ayse Yilmaz, Yakir Gagnon, Marcus J. Byrne, James J. Foster, Emily Baird, Marie Dacke
Summary: Many insects rely on path integration for navigating back to their nests, but in familiar terrain, landmarks can be used to compensate for navigational errors and guide the insects back to their nests with precision.
FRONTIERS IN INTEGRATIVE NEUROSCIENCE
(2022)
Meeting Abstract
Ophthalmology
James J. Foster, Keram Pfeiffer
Meeting Abstract
Zoology
J. J. Foster, A. N. Radford, S. E. Temple, D. Wilby, N. W. Roberts
INTEGRATIVE AND COMPARATIVE BIOLOGY
(2018)
Meeting Abstract
Psychology, Experimental
James J. Foster, Claudia Tocco, Jochen Smolka, Lana Khaldy, Emily Baird, Marcus J. Byrne, Dan-Eric Nilsson, Marie Dacke