Presence-Teleoperators and Virtual Environments最新文献_第7页

Diamond Park and Spline:Social Virtual Reality with 3D Animation, Spoken Interaction, and Runtime Extendability 钻石公园和样条:社会虚拟现实与3D动画，口头互动，和运行时的可扩展性

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-08-01 DOI: 10.1162/pres.1997.6.4.461

R. Waters, David B. Anderson, J. Barrus, David C. Brogan, M. Casey, Stephan G. McKeown, Tohei Nitta, Ilene B. Sterns, W. Yerazunis

引用次数: 92

A Survey of Augmented Reality 增强现实研究综述

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-08-01 DOI: 10.1162/pres.1997.6.4.355

Ronald T. Azuma

引用次数: 8719

NaviCam:A Magnifying Glass Approach to Augmented Reality NaviCam:增强现实的放大镜方法

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-08-01 DOI: 10.1162/pres.1997.6.4.399

J. Rekimoto

{"title":"NaviCam:A Magnifying Glass Approach to Augmented Reality","authors":"J. Rekimoto","doi":"10.1162/pres.1997.6.4.399","DOIUrl":"https://doi.org/10.1162/pres.1997.6.4.399","url":null,"abstract":"Current augmented reality (AR) systems are not designed to be used in our daily lives. Head-mounted see-through displays are too cumbersome and look too unusual for everyday life. The limited scalability of position-tracking devices limits the use of AR to very restricted environments. This paper proposes a different way to realize AR that can be used in an open environment by introducing the concept of ID awareness and a hand-held video see-through display. Unlike other AR systems that use head-mounted or head-up displays, our approach employs the combination of a palmtop-sized display and a small video camera. A user sees the real world through the display device, with added computer-augmented information. We call this configuration the magnifying glass approach. It has several advantages over traditional head-up or head-mounted configurations. The main advantage is that the user is not required to wear any cumbersome headgear. The user can easily move the display device around like a magnifying glass and compare real and augmented images. The video camera also obtains information related to real-world situations. The system recognizes real-world objects using the video images by reading identification (ID) tags. Based on the recognized ID tag, the system retrieves and displays information about the real-world object to the user. The prototype hand-held device based on our proposed concept is called NaviCam. We describe several potential applications. Our experiments with NaviCam show the great potential of our video see-through palmtop display. It was significantly faster than a head-up configuration, and its subjective score from testers was also higher.","PeriodicalId":54588,"journal":{"name":"Presence-Teleoperators and Virtual Environments","volume":"1 1","pages":"399-412"},"PeriodicalIF":1.1,"publicationDate":"1997-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74602002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 113

Computer Vision-Based Augmented Reality for Guiding Manual Assembly 基于计算机视觉的增强现实指导手册装配

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.292

Rajeev Sharma, J. Molineros

{"title":"Computer Vision-Based Augmented Reality for Guiding Manual Assembly","authors":"Rajeev Sharma, J. Molineros","doi":"10.1162/pres.1997.6.3.292","DOIUrl":"https://doi.org/10.1162/pres.1997.6.3.292","url":null,"abstract":"Augmented reality (AR) has the goal of enhancing a person's perception of the surrounding world, unlike virtual reality (VR) that aims at replacing the perception of the world with an artificial one. An important issue in AR is making the virtual world sensitive to the current state of the surrounding real world as the user interacts with it. For providing the appropriate augmentation stimulus at the right position and time, the system needs some sensor to interpret the surrounding scene. Computer vision holds great potential in providing the necessary interpretation of the scene. While a computer vision-based general interpretation of a scene is extremely difficult, the constraints from the assembly domain and specific marker-based coding scheme are used to develop an efficient and practical solution. We consider the problem of scene augmentation in the context of a human engaged in assembling a mechanical object from its components. Concepts from robot assembly planning are used to develop a systematic framework for presenting augmentation stimuli for this assembly domain. An experimental prototype system, VEGAS (Visual Enhancement for Guiding Assembly Sequences), is described, that implements some of the AR concepts for guiding assembly using computer vision.","PeriodicalId":54588,"journal":{"name":"Presence-Teleoperators and Virtual Environments","volume":"9 1","pages":"292-317"},"PeriodicalIF":1.1,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90005528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 59

Online Telecontrol Techniques Based on Object Parameter Adjusting 基于对象参数调整的在线遥控技术

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.255

L. Slutski

引用次数: 4

The Zircus Concept Sketch for a Learning Environment and Online Community 学习环境和在线社区的Zircus概念草图

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.339

C. Strohecker

引用次数: 6

Effects of Image Quality, Number of Selectable Viewpoints, and Way to Select the Viewpoint in X-Ray Luggage Inspection x射线行李检查中图像质量的影响、可选择视点的数量及视点选择方法

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.268

W. Pasman, G. Smets, P. Stappers

引用次数: 4

The Potential of Teleoperation for Entertainment and Education 远程操作在娱乐和教育中的潜力

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.350

N. Durlach

引用次数: 5

EMG-Based Interface for Position Tracking and Control in VR Environments and Teleoperation 基于肌电图的虚拟现实环境和远程操作位置跟踪控制接口

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.282

S. Suryanarayanan, N. P. Reddy

{"title":"EMG-Based Interface for Position Tracking and Control in VR Environments and Teleoperation","authors":"S. Suryanarayanan, N. P. Reddy","doi":"10.1162/pres.1997.6.3.282","DOIUrl":"https://doi.org/10.1162/pres.1997.6.3.282","url":null,"abstract":"Position tracking and control using bioelectric signals are emerging as promising techniques. Surface electromyographic (EMG) signals are being researched for tracking human movements, direct proportional control of teleoperators, and object manipulation in VR environments. This study investigates the use of surface EMG to track elbow joint angle during flexion-extension of the arm applied to control of a virtual environment or an anthropomorphic telemanipulator. An intelligent system based on neural networks and fuzzy logic has been developed to use the processed surface EMG signal and predict the joint angle. The intelligent system has been tested on normal subjects performing flexion-extension of the arm of various angles and at several speeds. The joint angles predicted by the intelligent system were input to a computer-simulated model of an elbow manipulator. Preliminary results show the average root mean squared (RMS) error between the actual elbow joint angle measured with a goniometer and the joint angle reproduced by the robot model to be less than 20%. The technique of using EMG as an interface for tracking and direct biocontrol has great potential in VR and telemanipulation.","PeriodicalId":54588,"journal":{"name":"Presence-Teleoperators and Virtual Environments","volume":"18 1","pages":"282-291"},"PeriodicalIF":1.1,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84497893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Experiments Using Multimodal Virtual Environments in Design for Assembly Analysis 多模态虚拟环境在装配分析设计中的实验研究

IF 1.1 4区计算机科学

Presence-Teleoperators and Virtual Environments Pub Date : 1997-06-01 DOI: 10.1162/pres.1997.6.3.318

Rakesh Gupta, T. Sheridan, D. Whitney

{"title":"Experiments Using Multimodal Virtual Environments in Design for Assembly Analysis","authors":"Rakesh Gupta, T. Sheridan, D. Whitney","doi":"10.1162/pres.1997.6.3.318","DOIUrl":"https://doi.org/10.1162/pres.1997.6.3.318","url":null,"abstract":"The goal of this work is to investigate whether estimates of ease of part handling and part insertion can be provided by multimodal simulation using virtual environment (VE) technology. The long-term goal is to use this data to extend computer-aided design (CAD) systems in order to evaluate and compare alternate designs using design for assembly analysis. A unified, physically-based model has been developed for modeling dynamic interactions and has been built into a multimodal VE system called the Virtual Environment for Design for Assembly (VEDA). The designer sees a visual representation of objects, hears collision sounds when objects hit each other, and can feel and manipulate the objects through haptic interface devices with force feedback. Currently these models are 2D in order to preserve interactive update rates. Experiments were conducted with human subjects using a two-dimensional peg-in-hole apparatus and a VEDA simulation of the same apparatus. The simulation duplicated as well as possible the weight, shape, size, peg-hole clearance, and fictional characteristics of the physical apparatus. The experiments showed that the multimodal VE is able to replicate experimental results in which increased task completion times correlated with increasing task difficulty (measured as increased friction, increased handling distance, and decreased peg-hole clearance). However, the multimodal VE task completion times are approximately twice those of the physical apparatus completion process. A number of possible factors have been identified, but the effect of these factors has not been quantified.","PeriodicalId":54588,"journal":{"name":"Presence-Teleoperators and Virtual Environments","volume":"97 1","pages":"318-338"},"PeriodicalIF":1.1,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85844920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 72