Article
Automation & Control Systems
Byeongjin Kim, Hangil Joe, Son-Cheol Yu
Summary: This study presents a method for generating a high-precision 3D map using sonar images from an autonomous underwater vehicle. By analyzing a sequence of 2D sonar images, a 3D point cloud can be generated to overcome the lack of height information.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2021)
Article
Engineering, Civil
Adeel Ahmed, Moeez Ashfaque, Muhammad Uzair Ulhaq, Senthan Mathavan, Khurram Kamal, Mujib Rahman
Summary: Machine vision based evaluation systems for automated quality inspection of roads are gaining attention. A novel approach using Structure from Motion 3D reconstruction algorithm and laser triangulation to generate 3D point clouds of potholes, as well as a low-cost system, has been proposed. Scale ambiguity is solved using the principle of triangulation with a laser pointer.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Abderrahim Halimi, Aurora Maccarone, Robert A. Lamb, Gerald S. Buller, Stephen McLaughlin
Summary: This paper introduces a hierarchical Bayesian algorithm for the robust reconstruction of multispectral single-photon Lidar data in challenging environments, providing robust depth and reflectivity estimates using multi-scale information to assist decision making. The weight-based strategy allows the utilization of guide information obtained by state-of-the-art learning based algorithms, with validation showing competitive results in terms of quality of inferences and computational complexity compared to existing algorithms.
IEEE TRANSACTIONS ON COMPUTATIONAL IMAGING
(2021)
Article
Optics
Kashif Usmani, Timothy O'Connor, Pranav Wani, Bahram Javidi
Summary: This paper addresses the problem of object recognition in degraded environments and compares the performance of different imaging systems. It is found that the three-dimensional integral imaging system with a visible range camera can provide better image reconstruction and improve the detection accuracy of the network.
Article
Optics
Liangliang Xie, Xu Zhang, Dawei Tu
Summary: This paper presents a binocular vision imaging system based on fisheye lens for 3D imaging of large underwater scenes. It re-describes the imaging process of underwater fisheye camera through the parametric representation of four-dimensional light field and establishes a multi-layer refraction imaging model of underwater binocular stereo vision based on fisheye camera. The experimental results show the effectiveness of the proposed calibration method, and indicate that the developed underwater binocular fisheye camera imaging system is capable of 3D imaging and observations of large underwater scenes.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Aurora Maccarone, Kristofer Rummond, Aongus Mccarthy, Ulrich K. S. Teinlehner, Julian Achella, Diego A. Guirre G. Arcia, Agata Pawlikowska, Robert A. Lamb, Robert K. Henderson, Stephen Mclaughlin, Yoann Altmann, Gerald S. Buller
Summary: We developed a fully submerged underwater LiDAR transceiver system using single-photon detection technologies. The system utilized a silicon single-photon avalanche diode (SPAD) detector array and picosecond resolution time-correlated single-photon counting for photon time-of-flight measurement. Real-time three-dimensional imaging was achieved through a joint surface detection and distance estimation algorithm. The system demonstrated high-resolution imaging of stationary and moving targets at depths of 1.8 meters and stand-off distances of up to 5.5 attenuation lengths.
Article
Geosciences, Multidisciplinary
Francisco J. Chavez-Garcia, Thulasiraman Natarajan, Martin Cardenas-Soto, Kusala Rajendran
Summary: Intense monsoon rains in 2018 triggered landslides in the Western Ghats region of India, causing significant damage. A case study on two landslides used seismic prospecting to characterize them, showing similar results with different analyses and correlations between shear-wave velocity distribution and seismic noise characteristics. The study suggests that soil thickness played a major role in the landslides' triggering.
Article
Engineering, Multidisciplinary
Jing Yan, Zeqian Zhang, Xian Yang, Xiaoyuan Luo, Xinping Guan
Summary: This article focuses on the issue of non-cooperative target detection in underwater sensor networks by fusing active and passive measurements. The authors propose a Chi-square test based local decision rule and a Bayesian fusion algorithm to integrate detection decisions from different sensor nodes, improving accuracy and reducing communication load.
IEEE TRANSACTIONS ON NETWORK SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Christian Braeuer-Burchardt, Christoph Munkelt, Michael Bleier, Matthias Heinze, Ingo Gebhart, Peter Kuehmstedt, Gunther Notni
Summary: This study introduces a novel 3D scanning system based on structured illumination for cultural heritage documentation and measurement tasks in underwater environments. The system consists of cameras, a projection unit, flashlights, an IMU, and an electronic control box. The measurement principles and comparisons with other 3D recording methods are discussed, and operational scenarios and results are provided. The new 3D scanning system demonstrates its potential for underwater site documentation and generating detailed true-scale 3D models with texture and color information.
Article
Automation & Control Systems
Miguel Castillon, Josep Forest, Pere Ridao
Summary: This article presents a novel underwater 3D laser scanner that compensates for refraction-related distortions using a 2-axis mirror to project curved lines as straight lines. The goal of this research is to prove the practical application of this method in underwater robotics and introduce a simple calibration algorithm.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2022)
Article
Engineering, Marine
Kai Hu, Tianyan Wang, Chaowen Shen, Chenghang Weng, Fenghua Zhou, Min Xia, Liguo Weng
Summary: Currently, 3D reconstruction technology is being applied to underwater scenes and is an important research direction for human ocean exploration and development. Optical image 3D reconstruction has become the mainstream method due to the rapid development of computer vision. This paper focuses on optical image 3D reconstruction methods in the underwater environment, as well as underwater 3D reconstruction based on acoustic image and optical-acoustic image fusion methods.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Optics
Zhuang Sufeng, Tu Dawei, Liu Jianye
Summary: This research establishes the underwater binocular stereo vision dynamic imaging technology based on active speckle projection, analyzes the influence of active speckle pattern projection on the matching accuracy of corresponding points of underwater binocular stereo vision, and establishes the experimental device of underwater binocular vision dynamic 3D imaging system based on active speckle projection. The experimental results indicate that the underwater binocular stereo vision technology with active speckle projection has a sound dynamic 3D imaging effect, and the dynamic measurement error is within the static error determined by the structure and system parameters of the binocular stereo vision experimental device.
ACTA OPTICA SINICA
(2023)
Article
Engineering, Electrical & Electronic
Yuqi Ding, Zhang Chen, Yu Ji, Jingyi Yu, Jinwei Ye
Summary: This paper presents a light field-based approach for high-quality 3D reconstruction of underwater scenes from a single viewpoint. The method utilizes angular resampling of light field images and employs a fast approximation algorithm to handle non-linear refraction. Experimental results demonstrate that the proposed method achieves state-of-the-art reconstruction on both synthetic and real data.
IEEE TRANSACTIONS ON COMPUTATIONAL IMAGING
(2023)
Article
Optics
Sufeng Zhuang, Dawei Tu, Xu Zhang, Chuzhuang Liu
Summary: Due to refraction, absorption, and scattering, underwater stereo vision encounters more challenges than in air. These phenomena result in blurred details, reduced contrast and brightness in underwater images, which affect the accuracy and reliability of stereo matching and increase the difficulty. The method based on active speckle pattern enhances the surface texture of underwater objects, providing robust and accurate results for matching corresponding points. This research problem is more important in water. The experiment demonstrates that the speckle pattern significantly affects the accuracy of underwater 3D imaging and higher-quality patterns with lower row entropy should be preferred. This work can guide the selection of projection speckle patterns in underwater stereo vision and improve the accuracy of underwater 3D measurement.
OPTICS COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
Xianghao Hou, Jianbo Zhou, Yixin Yang, Long Yang, Gang Qiao
Summary: This paper presents a solution for the 3D passive underwater uncooperative target tracking problem in a time-varying non-Gaussian environment, using a distributed passive underwater buoys observing system and an adaptive particle filter to overcome the low observability drawback and achieve good results.
Article
Engineering, Biomedical
Gianfranco Bianco, Luigi Bruno, Christopher A. Girkin, Massimo A. Fazio
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2020)
Article
Green & Sustainable Science & Technology
Michela Ricca, George Alexandrakis, Alessandra Bonazza, Fabio Bruno, Barbara Davidde Petriaggi, Dolores Elkin, Antonio Lagudi, Stephane Nicolas, Michal Novak, George Papatheodorou, Javier Prieto, Marco Ricci, Antonio Vasilijevic, Mauro Francesco La Russa
Article
Chemistry, Analytical
Filip Skola, Selma Rizvic, Marco Cozza, Loris Barbieri, Fabio Bruno, Dimitrios Skarlatos, Fotis Liarokapis
Editorial Material
Environmental Sciences
Dimitrios Skarlatos, Fabio Bruno, Fabio Menna, Erica Nocerino
Article
Chemistry, Multidisciplinary
Emanuele Marino, Fabio Bruno, Fotis Liarokapis
Summary: Color schemes are crucial in blending virtual objects with real environments, and good schemes improve user perception and are essential for AR. Novel methods based on color harmonization are proposed, including strategies like harmonic, disharmonic, and balance to meet various needs in different settings.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Marine
Emiliano Scalercio, Francesco Sangiovanni, Alessandro Gallo, Loris Barbieri
Summary: The in situ protection and conservation of underwater cultural heritage is considered a primary choice by the scientific community to preserve the true value of artifacts intact for future generations, requiring modern technological equipment to support the work of underwater restorers and archaeologists.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Loris Barbieri, Maurizio Muzzupappa
Summary: The emergence of Additive Manufacturing has revealed the limitations of current CAD systems and emphasized the untapped potential of Topology Optimization and Generative Design tools. The introduction of these tools in the product development process has shifted towards simulation-driven design approaches and altered the role of designers. This paper provides a comparison of two different design methods for Additive Manufacturing, based on the adoption of Topology Optimization and Generative Design tools, aiming to reflect on the evolution of the traditional approach and highlight the potential and limitations of these optimization tools when integrated with CAD systems. The comparative study, using the design study of a prototype for a Formula Student race car's rocker arm and brake pedal, demonstrates that both Topology Optimization and Generative Design tools can effectively be used early in the design process to redesign components for lighter and stronger results.
APPLIED SCIENCES-BASEL
(2022)
Article
Archaeology
Loris Barbieri, Fabrizio Fuoco, Fabio Bruno, Maurizio Muzzupappa
Summary: In the Cultural Heritage field, the choice of materials and exhibit structures is crucial for properly housing and supporting artifacts. This paper presents a design approach that combines optimization and manufacturing techniques to develop customized support structures, aiming to meet exhibition needs and preserve the artifacts.
JOURNAL OF CULTURAL HERITAGE
(2022)
Article
Environmental Sciences
Sante Francesco Rende, Alessandro Bosman, Fabio Menna, Antonio Lagudi, Fabio Bruno, Umberto Severino, Monica Montefalcone, Andrew D. Irving, Vincenzo Raimondi, Sebastiano Calvo, Gerard Pergent, Christine Pergent-Martini, Agostino Tomasello
Summary: Underwater photogrammetry provides high-resolution 3D models for monitoring ecological recovery actions, such as seagrass restoration. The study showed that using high-resolution multibeam bathymetry soundings and a 3D trilateration technique can improve the accuracy of the models and orthomosaics.
Article
Chemistry, Analytical
Emanuele Marino, Fabio Bruno, Loris Barbieri, Antonio Lagudi
Summary: This paper presents a benchmark evaluation of the tracking performances of popular AR handheld devices, highlighting the importance of accurate registration between real and computer-generated objects.
Article
Geography
Andrea Giulia Varzi, Luca Fallati, Alessandra Savini, Valentina Alice Bracchi, Pietro Bazzicalupo, Antonietta Rosso, Rossana Sanfilippo, Marco Bertolino, Maurizio Muzzupappa, Daniela Basso
Summary: Peculiar columnar-shaped coralligenous (C) outcrops were documented offshore Marzamemi village (SE Sicily, Ionian Sea), and the extent and distribution of these outcrops were assessed using a new high-resolution bathymetric map. The C bioconstructions are mainly distributed along two depth ranges, 36-42 m and 86-102 m water depth.
Editorial Material
Engineering, Marine
Javier Prieto, Fabio Bruno, Antonio Lagudi, Michela Ricca, Mauro Francesco La Russa, George Papatheodorou, Nikola Miskovic
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Proceedings Paper
Engineering, Multidisciplinary
Umberto Severino, Fabrizio Fuoco, Felix Manfredi, Loris Barbieri, Maurizio Muzzupappa
Summary: This paper presents a feasibility study of a low-cost solution for autonomously conducting fast 3D scanning and reconstruction of small and medium-sized objects using a commercial depth camera integrated into an easy to unfold frame design. The system features a rotating two-dimensional light detection and ranging system and integrates an Inertial Measurement Unit sensor for automatic pre-alignment and registration of scan data. Experimental results show that this system can be a cost-effective solution for fast 3D scanning when high levels of accuracy are not required.
DESIGN TOOLS AND METHODS IN INDUSTRIAL ENGINEERING II, ADM 2021
(2022)
Article
Humanities, Multidisciplinary
Marco Cozza, Salvatore Isabella, Paola Di Cuia, Alessandro Cozza, Raffaele Peluso, Vincenzo Cosentino, Loris Barbieri, Maurizio Muzzupappa, Fabio Bruno
Summary: In recent decades, the popularity of video games has been on the rise due to their unique ability to engage audiences and create empathy. Serious games, which serve purposes beyond entertainment, have been successfully applied in various fields. This paper describes a new serious game aimed at increasing awareness and promoting the Underwater Cultural Heritage (UCH), focusing on engaging users in interactive exploration of underwater archaeological sites.
Article
Engineering, Manufacturing
Fabio Bruno, Loris Barbieri, Maurizio Muzzupappa
INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM
(2020)