Shin, Il-Sik
(ICT Convergence Technology Team. Research Institute of Medium & Small Shipbuilding)
,
Beirami, Mohammadamin
(Department of Control & Instrumentation Engineering, Graduate School of Korea Maritime and Ocean University)
,
Cho, Seok-Je
(Division of Information Technology Engineering, Korea Marine and Ocean University)
,
Yu, Yung-Ho
(Division of Information Technology Engineering, Korea Maritime and Ocean University)
3D visualization of navigation simulation is to visualize the environment conditions (e.g. nearby ships, dynamic characteristics, environment, terrain, etc) for any users on ships at sea. Realistic 3D visualization enables the users to be immersed to it and guarantees the reliability of the simulati...
3D visualization of navigation simulation is to visualize the environment conditions (e.g. nearby ships, dynamic characteristics, environment, terrain, etc) for any users on ships at sea. Realistic 3D visualization enables the users to be immersed to it and guarantees the reliability of the simulation. In particular, terrain visualization contains many virtual objects, so it is time and cost-intensive for object modelling. This paper proposes a 3D terrain visualization method that can be realized in a short time and with low cost by using the Unity 3D development tool. The 3D terrain visualization system requires bathymetric and elevation terrains, and Aids to Navigations (AtoNs) to be realized. It also needs to include 3D visualization objects including bridges, buildings and port facilities for more accurate simulation. Bathymetric and AtoN elements are acquired from ENC, and the elevation element is acquired from SRTM v4.1 digital elevation chart database developed by NASA. Then, the bathymetric and elevation terrains are generated, and the satellite images are superposed by using this terrain information. The longitudinal and latitudinal information of the AtoNs are converted to the 3-axis information to position the AtoN locations. The 3D objects such as bridges, buildings and port facilities are generated and the terrain visualization is completed. The proposed method realizes more realistic 3D terrain visualization of Busan Port.
3D visualization of navigation simulation is to visualize the environment conditions (e.g. nearby ships, dynamic characteristics, environment, terrain, etc) for any users on ships at sea. Realistic 3D visualization enables the users to be immersed to it and guarantees the reliability of the simulation. In particular, terrain visualization contains many virtual objects, so it is time and cost-intensive for object modelling. This paper proposes a 3D terrain visualization method that can be realized in a short time and with low cost by using the Unity 3D development tool. The 3D terrain visualization system requires bathymetric and elevation terrains, and Aids to Navigations (AtoNs) to be realized. It also needs to include 3D visualization objects including bridges, buildings and port facilities for more accurate simulation. Bathymetric and AtoN elements are acquired from ENC, and the elevation element is acquired from SRTM v4.1 digital elevation chart database developed by NASA. Then, the bathymetric and elevation terrains are generated, and the satellite images are superposed by using this terrain information. The longitudinal and latitudinal information of the AtoNs are converted to the 3-axis information to position the AtoN locations. The 3D objects such as bridges, buildings and port facilities are generated and the terrain visualization is completed. The proposed method realizes more realistic 3D terrain visualization of Busan Port.
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문제 정의
The further study is required to apply the realized terrain visualization system to the navigation system that can be used to evaluate and verify the some of 16 MSPs items suggested by International Maritime Organization. This further research is to develop the effective MSP IT systems and services intuitively for mariner by using this system and to evaluate the usability of the services based on IMO guidelines on Human Centred Design(HCD) for e-navigation systems.
This paper discussed the 3D topology visualization system for development of the navigation simulation system. For this purpose, the authors generated and merged the elevation and bathymetric terrains, superposed the satellite images, located the 3D objects, and thereby realized a realistic terrain visualization system.
제안 방법
This paper discussed the 3D topology visualization system for development of the navigation simulation system. For this purpose, the authors generated and merged the elevation and bathymetric terrains, superposed the satellite images, located the 3D objects, and thereby realized a realistic terrain visualization system. The developed is a visualization system based on Unity 3D, and can be used for PC environment.
For the end users, the simulation tool needs to represent real environmental conditions such as nearby ship information, dynamics, environment, and terrains, wherein the ship navigates worldwide. The simulation program also considers navigation tools such as radar, ECDIS and AIS, and essential visualization elements that the mates needs for the navigation. These elements can be divided into weather, ocean, ships and terrains [4].
In particular, terrain visualization contains many objects including the port and narrow channel terrains, bathymetry, AtoNs and port facilities, so it is time and cost-intensive in object modeling, and induces deterioration of the simulation performance. Therefore, this study analyzes an open source development tool that can be used for navigation simulation, and proposes a navigation simulation terrain visualization system to be realized in a short time with low cost by using a Unity 3D tool [2]. By using the Unity 3D engine for the 3D visualization system, a navigation simulation is possible in the 3D environment without any limitations in cost, time and space.
The development tool needs to be used for the purposes of navigation simulation, applied for system extension and even for other systems, and accessible to any users for easy editing and supplementary tasks. This study analyzes several visualization development tools such as Ship Simulator, Unity 3D, which are based on Lumion 3D, UC Win/Road or Google Earth, so that we can effectively design the visualization objects of navigation simulation [5].
대상 데이터
Figure 1 shows the overall flow chart of the entire system to realize the 3D terrain visualization system. The terrain examples in this paper is the case of Busan Port. The proposed method herein can be applied to accurate 3D visualization for any location worldwide.
이론/모형
This research suggests a 3D terrain visualization system of navigation simulation using an open source tool, Unity 3D. The proposed system is connected to conventional navigation simulation based on Unity 3D, and experimentally verified.
To generate a city, the building objects are placed by using TerraCity Asset development tool. This Asset cannot place the building with respect to the exact latitudinal and longitudinal locations, but it can edit the textures by using Photoshop.
후속연구
The further study is required to apply the realized terrain visualization system to the navigation system that can be used to evaluate and verify the some of 16 MSPs items suggested by International Maritime Organization. This further research is to develop the effective MSP IT systems and services intuitively for mariner by using this system and to evaluate the usability of the services based on IMO guidelines on Human Centred Design(HCD) for e-navigation systems.
참고문헌 (7)
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H. G. Hwang, J. S. Lee, I. S. Shin, and Y. H. Yu, "A modeling and simulation approach method for effectiveness evaluation of MSP (Maritime Service Portfolio)s," International Symposium on Marine Engineering & Technology, 2013.
H. S. Kang, I. S. Shin, and Y. H. Yu, "The design of 3D visualization system of ship navigation using unity 3D," Proceedings of the 38th KOSME Spring Conference, p. 22, 2014 (in Korean).
S. S. Kim, User-interface development research using Unity 3D in practice, M.S. Thesis, Department of Game Engineering, Pai Chai University, Korea, 2014 (in Korean).
H. J. Hwang and D. H. Mun, "A study on improving graphic rendering engine for visualization of ship handling simulation," Journal of Navigation and Port Research, vol. 34, no. 3, pp. 153-160, 2010 (in Korean).
M. Beirami, I. S. Shin, and Y. H. Yu, "A method for 3D simulation of elevation, bathymetric, AtoN Data for Maritime simulator," Proceedings of the 38th KOSME Spring Conference, p. 219, 2014.
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