Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99)最新文献

Enveloping users and computers in a collaborative 3D augmented reality 将用户和计算机包裹在协同的3D增强现实中

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803804

A. Butz, Tobias Höllerer, Steven K. Feiner, B. MacIntyre, Clifford Beshers

{"title":"Enveloping users and computers in a collaborative 3D augmented reality","authors":"A. Butz, Tobias Höllerer, Steven K. Feiner, B. MacIntyre, Clifford Beshers","doi":"10.1109/IWAR.1999.803804","DOIUrl":"https://doi.org/10.1109/IWAR.1999.803804","url":null,"abstract":"We present EMMIE (Environment Management for Multiuser Information Environments), a prototype experimental user interface to a collaborative augmented environment. Users share a 3D virtual space and manipulate virtual objects that represent information to be discussed. We refer to EMMIE as a hybrid user interface because it combines a variety of different technologies and techniques, including virtual elements such as 3D widgets, and physical objects such as tracked displays and input devices. See-through head-worn displays overlay the virtual environment on the physical environment, visualizing the pervasive \"virtual ether\" within which all interaction occurs. Our prototype includes additional 2D and 3D displays, ranging from palm-sized to wall-sized, allowing the most appropriate one to be used for any task. Objects can be moved among displays (including across dimensionalities) through drag-and-drop. In analogy to 2D window managers, we describe a prototype implementation of a shared 3D environment manager that is distributed across displays, machines, and operating systems. We also discuss two methods we are exploring for handling information privacy in such an environment.","PeriodicalId":435326,"journal":{"name":"Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116754010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 165

Merging visible and invisible: two Camera-Augmented Mobile C-arm (CAMC) applications 合并可见和不可见:两个相机增强移动c臂(CAMC)应用程序

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803814

N. Navab, A. Bani-Kashemi, Matthias Mitschke

{"title":"Merging visible and invisible: two Camera-Augmented Mobile C-arm (CAMC) applications","authors":"N. Navab, A. Bani-Kashemi, Matthias Mitschke","doi":"10.1109/IWAR.1999.803814","DOIUrl":"https://doi.org/10.1109/IWAR.1999.803814","url":null,"abstract":"This paper presents the basic concept of CAMC and some of its applications. A CCD camera is attached to a mobile C-arm fluoroscopy X-ray system. Both optical and X-ray imaging systems are calibrated in the same coordinate system in an off-line process. The new system is able to provide X-ray and optical images simultaneously. The CAMC framework has great potential for medical augmented reality. We briefly introduce two new CAMC applications to the augmented reality research community. The first application aims at merging video images with a pre-computed tomographic reconstruction of the 3D volume of interest. This is a logical continuation of our work on 3D reconstruction using a CAMC (1999). The second approach is a totally new CAMC design where using a double mirror system and an appropriate calibration procedure the X-ray and optical images are merged in real-time. This new system enables the user to see an optical image, an X-ray image, or an augmented image where both visible and invisible are combined in real-time. The paper is organized in two independent sections describing each of the above. Experimental results are provided at the same time as the methods and apparatus are described for each section.","PeriodicalId":435326,"journal":{"name":"Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130837947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 89

Integrating virtual and augmented realities in an outdoor application 在户外应用中集成虚拟现实和增强现实

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803805

W. Piekarski, B. Gunther, B. Thomas

{"title":"Integrating virtual and augmented realities in an outdoor application","authors":"W. Piekarski, B. Gunther, B. Thomas","doi":"10.1109/IWAR.1999.803805","DOIUrl":"https://doi.org/10.1109/IWAR.1999.803805","url":null,"abstract":"This paper explores interconnecting outdoor AR systems with a VR system to achieve collaboration in both domains simultaneously. We envisage multiple mobile users of wearable AR systems interacting with a stationary VR facility via a wireless network. An application in simulated combat training is described, where the AR users are soldiers with wearable computers, and the VR system is located at a command and control centre. For soldiers, AR provides enhanced information about the battlefield environment, which may include the positions and attributes of simulated entities for the purpose of training outdoors at low cost. At the same time a complete picture of the battlefield, including real and simulated troops and vehicles, is available via the VR system. As soldiers move about, their GPS and digital compass hardware provide the remote VR user and other AR users with the means to track their position in real-time. We describe a working system based on our modular Tinmith-II wearable computer, which interacts with a combat simulator to create a synthetic battle environment for safe training and monitoring.","PeriodicalId":435326,"journal":{"name":"Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115843033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 104

Building a hybrid tracking system: integration of optical and magnetic tracking 构建混合跟踪系统:光磁跟踪的集成

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803802

T. Auer, A. Pinz

引用次数: 32

Marker tracking and HMD calibration for a video-based augmented reality conferencing system 基于视频的增强现实会议系统的标记跟踪和头显校准

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803809

H. Kato, M. Billinghurst

引用次数: 2547

A feasible low-power augmented-reality terminal 一种可行的低功耗增强现实终端

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803806

J. Pouwelse, K. Langendoen, H. Sips

引用次数: 10

The importance of being mobile: some social consequences of wearable augmented reality systems 移动的重要性:可穿戴增强现实系统的一些社会后果

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803815

Steven K. Feiner

引用次数: 42

Vision-based pose computation: robust and accurate augmented reality tracking 基于视觉的姿态计算:鲁棒和准确的增强现实跟踪

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803801

Jun Park, Bolan Jiang, U. Neumann

引用次数: 72

Photometric image-based rendering for virtual lighting image synthesis 基于光度图像的虚拟照明图像合成渲染

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803812

Y. Mukaigawa, Sadahiko Mihashi, Takeshi Shakunaga

{"title":"Photometric image-based rendering for virtual lighting image synthesis","authors":"Y. Mukaigawa, Sadahiko Mihashi, Takeshi Shakunaga","doi":"10.1109/IWAR.1999.803812","DOIUrl":"https://doi.org/10.1109/IWAR.1999.803812","url":null,"abstract":"A concept named Photometric Image-Based Rendering (PIBR) is introduced for a seamless augmented reality. The PIBR is defined as image-based rendering which covers appearance changes caused by the lighting condition changes, while Geometric Image-Based Rendering (GIBR) is defined as image-based rendering which covers appearance changes caused by the view point changes. PIBR can be applied to image synthesis to keep photometric consistency between virtual objects and real scenes in arbitrary lighting conditions. We analyze conventional IBR algorithms, and formalize PIBR within the whole IBR framework. A specific algorithm is also presented for realizing PIBR. The photometric linearization makes a controllable framework for PIBR, which consists of four processes: (1) separation of environmental illumination effects, (2) estimation of lighting directions, (3) separation of specular reflections and cast-shadows, and (4) linearization of self-shadows. After the-photometric linearization of input images, we can synthesize any realistic images which include not-only diffuse reflections but also self-shadows, cast-shadows and specular reflections. Experimental results show that realistic images can be successfully synthesized while keeping photometric consistency.","PeriodicalId":435326,"journal":{"name":"Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130142797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

An adaptive estimator for registration in augmented reality 增强现实中自适应配准估计

Proceedings 2nd IEEE and ACM International Workshop on Augmented Reality (IWAR'99) Pub Date : 1999-10-20 DOI: 10.1109/IWAR.1999.803803

Lin Chai, Khoi Nguyen, Bill Hoff, T. Vincent

引用次数: 40