Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062)最新文献_第5页

Digital 3D imaging system for rapid response on remote sites 用于远程站点快速响应的数字3D成像系统

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805332

J. Beraldin, F. Blais, L. Cournoyer, M. Rioux, S. El-Hakim, R. Rodella, F. Bernier, Nathalie Harrison

引用次数: 43

PALM: portable sensor-augmented vision system for large-scene modeling PALM:用于大场景建模的便携式传感器增强视觉系统

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805379

Teck Khim Ng, T. Kanade

引用次数: 5

Experimental analysis of Harmonic Shape Images 谐波形状图像的实验分析

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805351

D. Zhang, M. Hebert

引用次数: 9

Virtual environments for critical intervention support: modeling, design and implementation issues 关键干预支持的虚拟环境:建模、设计和实现问题

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805342

D. Poussart, François Bernier, M. Simoneau

{"title":"Virtual environments for critical intervention support: modeling, design and implementation issues","authors":"D. Poussart, François Bernier, M. Simoneau","doi":"10.1109/IM.1999.805342","DOIUrl":"https://doi.org/10.1109/IM.1999.805342","url":null,"abstract":"Computer vision, with its ability to efficiently generate geometric or photometric models of \"things\", has become a key resource in the process of virtualizing actual scenes or artefacts. Because of the key role of vision as a sensory modality, we often associate Virtual Reality with visualization, an association which has progressively been enriched by additional modalities such as hap tics or touch, as well as by the inclusion of (usually) simple behaviors necessary to provide a certain sense of \"presence\". \u0000 \u0000In this presentation, we discuss a class of Virtual Environments which target support for critical interventions - applicative areas where operational mistakes may have severe human / economic consequences and must be avoided. The level of strategic and tactical support - ranging from scenario optimization to direct supervisory control which is required in such cases implies much more than an a believable sensory experience, but rather an infrastructure where detailed, accurate (within specified bounds), coherent and robust physical representations and behaviors are maintained. While interactive visualization remains a key component of such a system, it needs to shifted away from its core and be integrated as a satellite to a simulation engine capable of high performance computation consistent with hard real-time requirements. This is especially true during the intervention phase, in an Augmented Reality mode, when actual tools operate upon actual objects. This raises a number of design and implementation challenges which we will consider in the context of industrial and medical applications which are currently being pursued in our Laboratory.","PeriodicalId":110347,"journal":{"name":"Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062)","volume":"87 22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126301166","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: 0

Self-calibration of a light striping system by matching multiple 3-D profile maps 通过匹配多个三维轮廓图实现光条系统的自校准

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805348

O. Jokinen

{"title":"Self-calibration of a light striping system by matching multiple 3-D profile maps","authors":"O. Jokinen","doi":"10.1109/IM.1999.805348","DOIUrl":"https://doi.org/10.1109/IM.1999.805348","url":null,"abstract":"A novel method is proposed for refining the calibration of a light striping system including a projective transformation between the image plane of the camera and the plane of the laser sheet, and also the direction of the scanning with respect to the plane of the laser sheet. The refinement is obtained through weighted least squares matching of multiple profile maps acquired from different viewpoints and registered previously using an approximate calibration. Testing with synthetically generated profile maps shows that if the geometry of the object is appropriate and the registration parameters and the intrinsic parameters of the system are known exactly, then a calibration accuracy of 0.003...0.00003% relative to the scene dimensions can be achieved as the average noise level in the maps used for the calibration decreases from 0.3 down to zero pixels. It is also possible to adjust several calibrations at the same time. The registration and calibration parameters can be refined simultaneously, but a close initial estimate and rather complex object geometry are needed for an accuracy of 0.03% when the average noise level is 0.03 pixels. Determining the corresponding points by interpolation on the parametric domains of the maps yields higher accuracy than perpendicular projection to the tangent planes at the closest points in 3D in both registration and calibration tasks. The highest accuracy is achieved when the interpolation errors are as equal as possible within the overlapping areas.","PeriodicalId":110347,"journal":{"name":"Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132708669","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: 53

Bayesian estimation of distance and surface normal with a time-of-flight laser rangefinder 用飞行时间激光测距仪进行距离和表面法线的贝叶斯估计

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805340

J. Lang, D. Pai

引用次数: 5

OSCAR: object segmentation using correspondence and relaxation OSCAR:使用对应和松弛的对象分割

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805357

B. Galvin, B. McCane, K. Novins

引用次数: 1

Robust surface matching for registration 鲁棒表面匹配配准

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805347

E. Guest, Steven Kelly, E. Berry, M. Fidrich

引用次数: 5

Hand posture estimation from 2D monocular image 基于二维单眼图像的手部姿态估计

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805373

Haiying Guan, C. Chua, Yeong-Khing Ho

引用次数: 8

CAD-based range sensor placement for optimum 3D data acquisition 基于cad的距离传感器放置，以获得最佳的3D数据采集

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI: 10.1109/IM.1999.805343

F. Prieto, T. Redarce, P. Boulanger, R. Lepage

引用次数: 36