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Head-mounted display-based intuitive virtual reality training system for the mining industry 被引量:9
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作者 Zhang Hui 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2017年第4期717-722,共6页
Virtual reality(VR) training technology in the mining industry is a new field of research and utilization.The successful application of VR training system is critical to mine safety and production. Through the statist... Virtual reality(VR) training technology in the mining industry is a new field of research and utilization.The successful application of VR training system is critical to mine safety and production. Through the statistics of the current research and applications of VR training systems in mining industry, all the input/output devices are classified. Based on the classifications of the input/output devices that are used in the VR system, the current VR training systems for the mining industry could be divided into three types: screen-based general type, projector-based customized type, and head-mounted display(HMD)-based intuitive type. By employing a VR headset, a smartphone and a leap motion device, an HMDbased intuitive type VR training system prototype for drilling in underground mines has been developed.Ten trainees tried both the HMD-based intuitive system and the screen-based general control system to compare the experiences and training effects. The results show that the HMD-based system can give a much better user experience and is easy to use. Three of the five components of a VR training system,namely, the user, the tasks, and software and database should be given more attention in future research.With more available technologies of input and output devices, VR engines, and system software, the VR training system will eventually yield much better training results, and will play a more important role in as a training tool for mine safety. 展开更多
关键词 Virtual reality TRAINING head-mounted display High immersive Intuitive Mining industry
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VLSI design of 3D display processing chip for binocular stereo displays
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作者 Ge Chenyang Zheng Nanning 《High Technology Letters》 EI CAS 2010年第3期288-292,共5页
In order to develop the core chip supporting binocular stereo displays for head mounted display (HMD) and glasses-TV, a very large scale integrated (VISI) design scheme is proposed by using a pipeline architecture... In order to develop the core chip supporting binocular stereo displays for head mounted display (HMD) and glasses-TV, a very large scale integrated (VISI) design scheme is proposed by using a pipeline architecture for 3D display processing chip (HMD100). Some key techniques including stereo display processing and high precision video scaling based bicubic interpolation, and their hardware implementations which improve the image quality are presented. The proposed HMD100 chip is verified by the field-programmable gate array (FPGA). As one of innovative and high integration SoC chips, HMD100 is designed by a digital and analog mixed circuit. It can support binocular stereo display, has better scaling effect and integration. Hence it is applicable in virtual reality (VR), 3D games and other microdisplay domains. 展开更多
关键词 3D display head mounted display hmd very large scale integrated (VLSI) video scaling SoC
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Light field head-mounted display with correct focus cue using micro structure array 被引量:4
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作者 宋维涛 王涌天 +1 位作者 程德文 刘越 《Chinese Optics Letters》 SCIE EI CAS CSCD 2014年第6期39-42,共4页
A new type of light fiehl display is proposed using a head-mounted display (HMD) and a micro structure array (MSA, lens array or pinhole array). Each rendering point emits abundant rays from different directions i... A new type of light fiehl display is proposed using a head-mounted display (HMD) and a micro structure array (MSA, lens array or pinhole array). Each rendering point emits abundant rays from different directions into the viewer's pupil, and at one time the dense light field is generated inside the exit pupil of the HMD through the eyepiece. Therefore, the proposed method not only solves the problem of accommodation and convergence conflict in a traditional HMD, but also drastically reduces the huge data in real three-dimensional (3D) display. To demonstrate the proposed method, a prototype is developed, which is capable of giving the observer a real perception of depth. 展开更多
关键词 hmd Light field head-mounted display with correct focus cue using micro structure array MSA head
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Efficiency balance of a light guide plate with microstructures for a see-through head-mounted display
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作者 趙凱緯 潘瑞文 《Chinese Optics Letters》 SCIE EI CAS CSCD 2016年第2期73-77,共5页
The efficiency balance phenomenon for see-through head-mounted displays with different microstructure con- ditions can be found both theoretically and using optical simulation software. A simple mathematical calculati... The efficiency balance phenomenon for see-through head-mounted displays with different microstructure con- ditions can be found both theoretically and using optical simulation software. A simple mathematical calculation is used to determine the relationship between the real image (see-through function) energy and the virtual image energy. The simulation is based on factors taken from previous research studies. It is found that the balance value of the optical efficiency remains almost constant (66.63% to 67.38%) under different microstructure conditions. In addition, suitable conditions for the microstructures in see-through head-mounted displays for daily applications can be predicted. 展开更多
关键词 Efficiency balance of a light guide plate with microstructures for a see-through head-mounted display HEAD
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Monochrome HUD’s Imaging Projector Based on Laser-DMD System 被引量:1
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作者 Sayed Sajjad Mousavi Fard Masood Kavosh Tehrani Mehrdad Mehrani 《Journal of Modern Physics》 2016年第10期1138-1149,共12页
Design and tolerance of a new head up display’s projector system is reported. It is based on laser-micro display modules. We designed optical diffraction limited modules and some of our novelties were compactness, us... Design and tolerance of a new head up display’s projector system is reported. It is based on laser-micro display modules. We designed optical diffraction limited modules and some of our novelties were compactness, using common material and spherical lenses in optical design, easy and economical manufacturing process, uniform intensity and minimum aberrations of final image, economical and repairable designed system. Projector magnification is 10.0X and diagonal of image plane is 76.2 mm. ZEMAX software is employed for optical design and tolerance. 展开更多
关键词 Head-Up display (HUD) Head Mounted display (hmd) Deformable Micro Mirror displays (DMD) Polarizer Beam Splitter (PBS)
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Design of Learning Media in Mixed Reality for Lao Education
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作者 Kalaphath Kounlaxay Soo Kyun Kim 《Computers, Materials & Continua》 SCIE EI 2020年第7期161-180,共20页
To improve and develop education systems,the communication between instructors and learners in a class during the learning process is of utmost importance.Currently the presentations of 3D models using mixed reality(M... To improve and develop education systems,the communication between instructors and learners in a class during the learning process is of utmost importance.Currently the presentations of 3D models using mixed reality(MR)technology can be used to avoid misinterpretations of oral and 2D model presentations.As an independent concept and MR applications,MR combines the excellent of each virtual reality(VR)and augmented reality(AR).This work aims to present the descriptions of MR systems,which include its devices,applications,and literature reviews and proposes computer vision tracking using the AR Toolkit Tracking Library.The focus of this work will be on creating 3D models and implementing in Unity 3D using the Vuforia SDK platform to develop VR and AR applications for architectural presentations. 展开更多
关键词 Mixed reality virtual reality augmented reality Vuforia head-mounted displays.
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Spatially resolved transcriptomics in immersive environments
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作者 Denis Bienroth Hieu TNim +4 位作者 Dimitar Garkov Karsten Klein Sabrina Jaeger-Honz Mirana Ramialison Falk Schreiber 《Visual Computing for Industry,Biomedicine,and Art》 EI 2022年第1期12-24,共13页
Spatially resolved transcriptomics is an emerging class of high-throughput technologies that enable biologists to systematically investigate the expression of genes along with spatial information.Upon data acquisition... Spatially resolved transcriptomics is an emerging class of high-throughput technologies that enable biologists to systematically investigate the expression of genes along with spatial information.Upon data acquisition,one major hurdle is the subsequent interpretation and visualization of the datasets acquired.To address this challenge,VR-Cardiomics is presented,which is a novel data visualization system with interactive functionalities designed to help biologists interpret spatially resolved transcriptomic datasets.By implementing the system in two separate immersive environments,fish tank virtual reality(FTVR)and head-mounted display virtual reality(HMD-VR),biologists can interact with the data in novel ways not previously possible,such as visually exploring the gene expression patterns of an organ,and comparing genes based on their 3D expression profiles.Further,a biologist-driven use-case is presented,in which immersive environments facilitate biologists to explore and compare the heart expression profiles of different genes. 展开更多
关键词 Spatially-resolved transcriptomics Spatial transcriptomics Virtual reality Fish tank virtual reality head-mounted display Immersive analytics Immersive environment
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把大屏幕电视戴在头上?!
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《微型计算机》 北大核心 2008年第5期21-21,共1页
头戴显示器(Head Mounted Display,缩写为HMD)早就不是什么新鲜玩意了,就算你不知道Eye-Trek视频眼镜(奥林巴斯十年前推出的民用HMD),在描写未来的科幻电影中也肯定见过近眼显示器一类令人神往的装备。顾名思义,HMD就是安置于... 头戴显示器(Head Mounted Display,缩写为HMD)早就不是什么新鲜玩意了,就算你不知道Eye-Trek视频眼镜(奥林巴斯十年前推出的民用HMD),在描写未来的科幻电影中也肯定见过近眼显示器一类令人神往的装备。顾名思义,HMD就是安置于头盔或同罩内,接近使用者的眼睛,提供大于显示屏物理尺寸虚像的特殊显示设备。 展开更多
关键词 大屏幕电视 display 头戴显示器 奥林巴斯 科幻电影 显示设备 hmd 使用者
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