The construction of underground laboratories is a key step in the deep geological disposal of high-level radioactive waste. due to the complex construction structure of underground laboratory engineering and the diffi...
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The construction of underground laboratories is a key step in the deep geological disposal of high-level radioactive waste. due to the complex construction structure of underground laboratory engineering and the difficulty of project implementation, how to effectively plan, design and evaluate underground laboratory construction projects is an important issue in the construction of underground laboratories. Based on geometric structure, topological relationship and geological semantics, this paper integrates multi-source data from underground laboratories and constructs a 3ddigital model of underground laboratory. The 3d data visualization system of underground laboratory of immersed high-level waste geological disposal was constructed by using terrain automatic generation algorithm, perspective and section in 3d model visualization, and immersive interactive means of viewpoint positioning. The experimental results show that the system can provide an intuitive interactive means for the comprehensive analysis of underground laboratory data, and provide reference for the demonstration of underground laboratory engineering construction planning anddesign.
Three-dimensional visualizations employing traditional input and output technologies have well-known limitations. Immersive technologies, natural interaction techniques, and recent developments in data physicalization...
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ISBN:
(纸本)9781450346917
Three-dimensional visualizations employing traditional input and output technologies have well-known limitations. Immersive technologies, natural interaction techniques, and recent developments in data physicalization may help to overcome these issues. In this context, we are specifically interested in the usage of spatial interaction with mobile devices for improved3dvisualizations. To contribute to a better understanding of this interaction style, we implemented example visualizations on a spatially-tracked tablet and investigated their usage and potential. In this paper, we report on a qualitative study comparing spatial interaction with in-place 3dvisualizations to classic touch interaction regarding typical visualization tasks: navigation of unknown datasets, comparison of individual data objects, and the understanding and memorization of structures in the data. We identify several distinct usage patterns andderive recommendations for using spatial interaction in 3d data visualization.
Effective 3d patient datavisualization for brain MRI is required in surgical planning and in-situ guidance during brain tumor resection. Traditional 2ddisplays do not possess depth perception and are poor in underst...
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ISBN:
(纸本)9798350351439;9798350351422
Effective 3d patient datavisualization for brain MRI is required in surgical planning and in-situ guidance during brain tumor resection. Traditional 2ddisplays do not possess depth perception and are poor in understanding complex anatomical structures being displayed in 3d. In this work, an interactive visualization system based on augmented reality is presented, which provides an intuitive and truly immersive way to visualize and interact with 3d brain MRI data as preoperative planning and in-situ guidance by a surgeon during tumor resection procedures of the brain. In this work, we propose a system where AR devices can render patient-specific 3d brain models, reconstructed from MRI data, in a spatially registered way to the surgical field. These 3d virtual models can be interacted by the surgeon, through the natural use of controls, to study the spatial relationship of critical structures such as tumors, ventricles, and functional brain regions. Advanced volume rendering and multi-modal data fusions are used in creating photorealistic 3dvisualizations with high anatomical detail.
The present paper concerns the results of the analysis of the possibilities of integration and expansion of existing software for visualization and analysis of scientific data. The expediency of use of the VTK framewo...
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ISBN:
(纸本)9789663354125
The present paper concerns the results of the analysis of the possibilities of integration and expansion of existing software for visualization and analysis of scientific data. The expediency of use of the VTK framework that implements the methods of datadisplay, and provides for their implementation in hardware-software systems, intended for reception and processing of spatial information.
Target selection is one of essential operation made available by interaction techniques in virtual reality (VR) environments. However, effectively positioning or selecting occluded objects is under-investigated in VR,...
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Target selection is one of essential operation made available by interaction techniques in virtual reality (VR) environments. However, effectively positioning or selecting occluded objects is under-investigated in VR, especially in the context of high-density or a high-dimensional datavisualization with VR. In this paper, we propose ClockRay, an occluded-object selection technique that can maximize the intrinsic human wrist rotation skills through the integration of emerging ray selection techniques in VR environments. We describe the design space of the ClockRay technique and then evaluate its performance in a series of user studies. drawing on the experimental results, we discuss the benefits of ClockRay compared to two popular ray selection techniques - RayCursor and RayCasting. Our findings can inform the design of VR-based interactive visualization systems for high-density data.
Virtual classroom simulations are an exciting avenue to give teachers a way to reflect on their teaching behavior, in particular, nonverbal behavior. In two within-participants studies, we explore how visualizing part...
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ISBN:
(纸本)9798400703317
Virtual classroom simulations are an exciting avenue to give teachers a way to reflect on their teaching behavior, in particular, nonverbal behavior. In two within-participants studies, we explore how visualizing participants' gaze, using four different datavisualizations, affected participants' behaviors and self-reflection in an immersive virtual reality classroom simulation. We compared a Control condition with no datavisualization, an updating Bar Graph over each "student" agent head, and two Fade-In/Fade-Out conditions where the opacity of "students" changed based on whether they were in the field of view of the participant. We found that participants preferred the Bar Graph visualizations, and this condition changed participants' behavior the most compared to the Control condition. We discuss design implications for virtual classroom simulations as a self-reflection tool for teachers.
Augmented Reality (AR) is a technology that has attracted a lot of attention in recent times, especially, after PokemonGo and quite recently with the gaining popularity of metaverse. AR is not a new technology but its...
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ISBN:
(数字)9781665427920
ISBN:
(纸本)9781665427920
Augmented Reality (AR) is a technology that has attracted a lot of attention in recent times, especially, after PokemonGo and quite recently with the gaining popularity of metaverse. AR is not a new technology but its development to maturity has always been dependent on many other technologies like computer vision, mobile processing, optics, etc. We are at that stage in the development cycle of AR where all other technologies not only support but can benefit from its use. This research presents one such innovation in the domain of education - for school children or enthusiasts about geospatial technologies such as remote sensing. In this paper, we have discussed the idea, methodology, anddemonstration of one such application which establishes a future trend for use of AR in the education of Geospatial Technology. different types of remote sensing data, their acquisition method, satellite technology, and applications area are explained using AR for a more interactive experience. Learning about geospatial technology will be helpful as the new frontier of Geo-information is enhancing everyone's day-to-day life and will help in boosting interest in this field.
Blind zones in light detection and ranging (LidAR) sensors arise from their limited physical field of view and obstructions caused by static infrastructure or moving objects. Although originally intended for vehicle-b...
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Blind zones in light detection and ranging (LidAR) sensors arise from their limited physical field of view and obstructions caused by static infrastructure or moving objects. Although originally intended for vehicle-based applications, LidAR sensors are now increasingly deployed in roadside infrastructure for traffic monitoring and connected and automated vehicle safety and mobility applications. However, there is a dearth of robust tools for analyzing their detection range, resolution, and other characteristics in such settings. This study introduces a three-dimensional (3d) blind zone simulation model for analyzing the detection characteristics of roadside LidAR sensor deployment. The model replicates the impact of static infrastructure conditions anddynamic blind zones during live traffic. Initially, a real-worlddigital surface model (dSM) captures 3ddata of road surfaces and obstructing infrastructure objects. Optical geometry models then assess blind zone severity across various roadway areas. Subsequent 3d vehicle shape anddynamic simulations evaluate blind zone distributions under typical traffic conditions. The model's effectiveness is validated using field3d point clouddata and vehicle detection data collected from a roadside LidAR site on Route 18 in New Brunswick, NJ. Evaluation results demonstrate the model's capability in analyzing complex static anddynamic blind zone distributions, offering insights for optimizing LidAR sensor location, height, tilting angle, and manufacturer configuration parameters to minimize sensing blind zones. For code availability, see https://***/rutgerstslab/LidAR-Coverage-Analysis.
Web 3d was initially realized by installing plug-ins on the browser, and WebGL can render interactive 3d graphics on web pages without using plug-ins. *** is the open-source framework of WebGL, a small amount of JavaS...
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ISBN:
(纸本)9781665418430
Web 3d was initially realized by installing plug-ins on the browser, and WebGL can render interactive 3d graphics on web pages without using plug-ins. *** is the open-source framework of WebGL, a small amount of JavaScript code can create complex 3d scenes. This article uses *** to realize 3d data visualization, including 3d histograms, pie charts, maps, earth, and force-oriented graphs, and uses them for a visualizeddisplay of film data.
Road safety is crucial in the design of autonomous vehicles, so safety and performance tests must be carried out regularly. visualization applications of data acquired in these tests are critical to helping the contin...
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ISBN:
(纸本)9781665431989
Road safety is crucial in the design of autonomous vehicles, so safety and performance tests must be carried out regularly. visualization applications of data acquired in these tests are critical to helping the continuous progress of autonomous driving. Currently, there is an application that helps in visualizing these data through a web platform, called Kratos visualization. This application was developed using the WebGL library, to help companies that carry out experiments with autonomous vehicles to visualize and validate the data that they collect. These data represent different sequences of autonomous driving experiences and can contain a lot of information about the vehicle and objects in the environment around it. The work that led to this paper aims to explore the visualization of these data with the help of virtual reality. To strengthen the visualization of autonomous driving data, an application was created named Kratos VR. designed with the A-Frame framework to work in any browser, this application contains the same functionalities of Kratos visualization and new virtual reality features. Performance tests were carried out to evaluate the application. These tests allowed us to conclude that virtual reality can be successfully used to effectively visualize Advanceddriving Assist Systems (AdAS) and Autonomous driving (Ad) data and that the developed application provides a solid basis for future virtual reality applications in this field.
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