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Developing Generative Adversarial Nets to Extend Training Sets and Optimize Discrete Actions

Ruolan Zhang, Masao Furusho
2019 TransNav: International Journal on Marine Navigation and Safety of Sea Transportation  
This study proposes the use of generative adversarial networks (GANs) to solve two crucial problems in the unmanned ship navigation: insufficient training data for neural networks and convergence of optimal  ...  The experimental results showed that the generated target ship image set can be used as the training set of decision neural networks.  ...  Such a trained generator can have many uses; one of them being environmental generation in automatic navigation. The specific process to obtain various target ships is shown in Figure 1 .  ... 
doi:10.12716/1001.13.04.22 fatcat:x5auxhoqmvd2vggqnhuzgaqlxa

Pose-graph visual SLAM with geometric model selection for autonomous underwater ship hull inspection

Ayoung Kim, R. Eustice
2009 2009 IEEE/RSJ International Conference on Intelligent Robots and Systems  
The post-processed result validates the algorithm's potential to provide in-situ navigation in the underwater environment for trajectory control, while generating a texture-mapped 3D model of the ship  ...  The goal of this work is to automatically map and navigate the underwater surface area of a ship hull for foreign object detection and maintenance inspection tasks.  ...  The post-processed result validates the algorithm's potential to provide in-situ navigation in the underwater environment for trajectory control, while generating a texture-mapped 3D model of the ship  ... 
doi:10.1109/iros.2009.5354132 dblp:conf/iros/KimE09 fatcat:dliiabc5wzccdjoyn2leckxyi4

Sea Ice Warning Visualization and Path Planning for Ice Navigation Based on Radar Image Recognition

Tsung-Hsuan Hsieh, Shengzheng Wang, Huijia Gong, Wei Liu, Ning Xu
2021 Journal of Marine Science and Technology  
This study uses marine radar imaging to reconstruct the ice navigation scene, and establishes a visualization function of sea ice warning on the radar image.  ...  After a number of path planning schemes are quickly generated, the path risk index proposed in this study can be used to evaluate and choose a relatively optimal path planning scheme with lower risk, as  ...  At first, we used image recognition technology to recognize the own-ship position, short-term target position and unknown obstacle areas from the radar image, and to reconstruct the ice navigation scene  ... 
doi:10.51400/2709-6998.1433 fatcat:ndlkal25rnbsfaue6tgatcelq4

Sociotechnical Model of Ship Organization Effectiveness

Toni Bielić, Robert Mohović, Renato Ivče
2011 Promet (Zagreb)  
This article investigates the possibility of optimizing the organization of a ship as a highly complex technical system.  ...  Based on research conducted on the navigation simulator, socio-technical components that affect the safety of navigation have been observed.  ...  towards automation of technological processes applied to the ship´s control.  ... 
doi:10.7307/ptt.v23i1.148 fatcat:hnxdmio2grfvzkaoeg4mrj2x7u

A Fast Binocular Localisation Method for AUV Docking

Lijia Zhong, Dejun Li, Mingwei Lin, Ri Lin, Canjun Yang
2019 Sensors  
The mass centre of each lamp on the binary image is used as matching feature for binocular vision.  ...  A simulation experiment using a ship model has been conducted in a laboratory pool to evaluate the feasibility of the algorithm.  ...  Figure 4 shows the raw image and the image acquired after processing using the median filter.  ... 
doi:10.3390/s19071735 fatcat:2hzxrre32jhsdir46zshn5ra3a

Towards a Heterogeneous Navigation Team of Aerial-Ground Robots Based on Fuzzy Image Processing

Rami Al-Jarrah, Bashra Kadhim, Aamir Shahzad, Hubert Roth
2015 International Journal of Materials Science and Engineering  
The proposed robotic system shows good results in simultaneous navigation and mapping applications.   ...  Then, the global optimal path with avoiding obstacles is generated by enhanced genetic algorithm by modified the search A*.  ...  FUZZY IMAGE PROCESSING As it was already mentioned, the features extracted with the camera shipped on the blimp were obtained by applying computer vision techniques.  ... 
doi:10.12720/ijmse.3.1.60-65 fatcat:hhrdkw6airhgzpmdtsgjgsnr3a

Ship's Trajectory Planning Based on Improved Multiobjective Algorithm for Collision Avoidance

Jinxin Li, Hongbo Wang, Wei Zhao, Yuanyuan Xue
2019 Journal of Advanced Transportation  
The simulation results show that the proposed method can optimize the ship collision avoidance strategy and provide a reasonable scheme for ship navigation.  ...  By balancing the safety and economy of ship collision avoidance, the avoidance angle and the time to the action point are used as the variables encoded by the algorithm, and the fuzzy ship domain is used  ...  the time between the turn towards collision avoidance and the turn towards navigational restoration, the duration of the collision avoidance navigation should not be less than ; otherwise, there is a  ... 
doi:10.1155/2019/4068783 fatcat:ijrunmxghneglicocqn2bqn2um

Conversion Timing of Seafarer's Decision-making for Unmanned Ship Navigation

Ruolan Zhang, Masao Furusho
2017 TransNav: International Journal on Marine Navigation and Safety of Sea Transportation  
The aim of this study is to construct an unmanned ship swarms monitoring model to improve autonomous decision-making efficiency and safety performance of unmanned ship navigation.  ...  A framework is proposed to determine the relationship between on-board decision-making and shore side monitoring, the process of ship data detection, tracking, analysis and loss, and the application of  ...  according to the ship navigation.  ... 
doi:10.12716/1001.11.03.11 fatcat:jrjbvyty3fasfj7heeamwon6jm

Path Planning of Coastal Ships Based on Optimized DQN Reward Function

Siyu Guo, Xiuguo Zhang, Yiquan Du, Yisong Zheng, Zhiying Cao
2021 Journal of Marine Science and Engineering  
In order to better realize the ship path planning in the process of navigation, this paper proposes a coastal ship path planning model based on the optimized deep Q network (DQN) algorithm.  ...  It can plan the optimal path in line with the actual navigation rules, and improve the safety, economy and autonomous decision-making ability of ship navigation.  ...  Execution Process of Coastal Ship Path Planning Model In this paper, the real marine environment is abstracted, and the optimized DQN algorithm is used to plan the path that meets the navigation specification  ... 
doi:10.3390/jmse9020210 fatcat:zo2lheaikzgvjeljlmpp5ryoye

AUV Navigation and Localization: A Review

Liam Paull, Sajad Saeedi, Mae Seto, Howard Li
2014 IEEE Journal of Oceanic Engineering  
This paper presents a review of the state of the art of underwater autonomous vehicle navigation and localization, as well as a description of some of the more commonly used methods.  ...  While these methods are useful, their performance is fundamentally limited.  ...  SIFT and Harris extraction points are used to match images. The VAN method has also been applied to ship-hull inspection for the US Navy [124] .  ... 
doi:10.1109/joe.2013.2278891 fatcat:t5hdclztqjgcpjrsdmglei5g2m

Design Methodology for Small Passenger Ships On the Example of the Ferryboat Motława 2 Driven by Hybrid Propulsion System

Paweł Gełesz, Artur Karczewski, Janusz Kozak, Wojciech Litwin, Łukasz Piątek
2017 Polish Maritime Research  
Clients, i.e. ship owners and passengers of ships paid more and more attention to image of floating units.  ...  As the ferry has to navigate in "the heart of the town", then, apart from strictly marine and engineering aspects, an important factor of its designing is its expected image - a set of significant meanings  ...  As the ferry has to navigate in "the heart of the town", then, apart from strictly marine and engineering aspects, an important factor of its designing is its expected image -a set of significant meanings  ... 
doi:10.1515/pomr-2017-0023 fatcat:gp4fknwexnczzkk5jfcz6omoku

Heading Homing Simulation System Based on Image Intelligent Recognition

Zhao Ke, Ziba Eslami
2016 TELKOMNIKA (Telecommunication Computing Electronics and Control)  
as being complicated, slow and short of robustness, the Thesis provides a new and rapid channel line recognition algorithm which firstly obtains outline pixel of channel line through analysis on the images  ...  Given the processing feature of the embedded platform, the following optimizing procedures are conducted in transplanting the algorithm: (1) Use fixed-point number as the calculation form.  ...  (such as ship-load navigation equipment, e-book reader and smart phone etc.), and 512MB SDRAM.  ... 
doi:10.12928/telkomnika.v14i2a.4346 fatcat:7zvswsu5zjcm5mf3nyhbwpuq6i

Visual Recognition Based on Deep Learning for Navigation Mark Classification

Mingyang Pan, Yisai Liu, Jiayi Cao, Yu Li, Chao Li, Chi-Hua Chen
2020 IEEE Access  
Recognizing objects from camera images is an important field for researching smart ships and intelligent navigation.  ...  Experimental results on a dataset with 10260 navigation mark images showed that the RMA has an accuracy about 96% to classify 42 types of navigation marks, and the RMA is better than ResNet-50 model with  ...  Jiang presented a novel method for ship classification that uses synthetic-apertureradar images to distinguish ships based on superstructure scattering features [14] . JW.  ... 
doi:10.1109/access.2020.2973856 fatcat:x3kzhbnndzgefha5ixqwv5nkte

Possibilities of Using Inland Navigation to Improve Efficiency of Urban and Interurban Freight Transport with the Use of the River Information Services (RIS) System—Case Study

Piotr Durajczyk, Natalia Drop
2021 Energies  
Inland navigation is hardly ever used to transport cargo in cities.  ...  The paper can be used as a road map to proceed with new approach to planning urban and inter-urban logistics, with the use of inland navigation supported by the RIS system.  ...  an electronic navigation map and/or satellite images, • enriching the current traffic image with additional data to facilitate the analysis of the situation, • comprehensive image analysis of traffic  ... 
doi:10.3390/en14217086 fatcat:xwxeg7detfapho3ptgkftn3w3i

Hornbill: A Self-evaluating Hydro-blasting Reconfigurable Robot for Ship Hull Maintenance

Prabakaran Veerajagadheswar, Anh Vu Le, Phone Thiha Kyaw, Mohan Rajesh Elara, Kandasamy Prathap, Nguyen Nhat Tan, Madhu Kumar
2020 IEEE Access  
The aids of optimization in the path planning proved useful in finding the optimal navigation strategies for mobile robot [23] , Although numerous studies in the literature demonstrate the advantage of  ...  The proposed robotic system can adapt to navigate on any curved surfaces in a ship hull.  ...  He is also the Director of Brightsun Electricals, an established company whose principal activity is building and repairing of ships, tankers and other ocean-going vessels (including conversion of ships  ... 
doi:10.1109/access.2020.3033290 fatcat:qnlmh2bpbrbsjfuqnwwx3sn5ja
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