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桌面环境下拼贴显示的自动对准(英文) 被引量：4

Automatic Alignment of Tiled Displays for a Desktop Environment
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摘要 通过拼贴一组投影仪来构建高分辨率显示系统已成为现在一个较实际的办法.但是,这样的高分辨率显示系统用途有限,因为它们需要在定制的并行机或个人计算机集群上运行一些专门开发的并行形象化程序才能实现.针对个人计算机桌面环境下的任意拼贴显示给出了一种自动对准机制,使得桌面用户可以在其上运行普通的桌面应用软件.该系统包括3个步骤:检测投影仪对齐失准,计算出纠正所需之变换,对桌面环境进行实时的变形.这样就允许用户在运行任何2D,3D或视频程序时无须作任何修改,也无须使用专门的硬件支持.实验结果表明,系统能够获得亚像素级的精度,并且能在系统性能衰减最小的情况下达到实时变形. Tiling an array of projectors has become a practical way to construct a high resolution display system. Unfortunately, such high-resolution display systems have limited use because they require specially developed parallel visualization programs that run on a custom-designed parallel machine or a PC cluster. This paper presents an automatic alignment mechanism for arbitrarily tiled displays running a desktop environment so that users can run ordinary applications developed for desktop PCs. The system consists of three primary procedures: detecting projector misalignment, calculating corrective transformations, and real-time warping for the desktop environment. This allows users to run any 2D, 3D or video applications without modi?cations or special hardware support. Our experiments indicate that the system is able to achieve sub-pixel accuracy and achieve real-time warping with minimum system performance degradation.
作者 GrantWallace HanChen KaiLi
机构地区 DepartmentofComputerScience IBMTJWatsonResearchCenter
出处 《软件学报》 EI CSCD 北大核心 2004年第12期1776-1786,共11页 Journal of Software
基金 The Princeton Scalable Display Wall Project is supported in part by Department of Energy Grant DEFC0201ER25456,by NSF Infrastructure Grant No.EIA0101247 by NCSA Grant No.ACI9619019 (through NSF) by Intel Research Council and by Intel Technolog
关键词 自动对准 拼贴显示 高分辨率显示 桌面环境 实时变换 automatic alignment tiled display high-resolution display desktop environment real-time warping
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献15

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同被引文献18

  • 1汪洋,贺怀清,杨国庆.三维机场模型中纹理处理方法研究[J].计算机工程,2005,31(B07):214-215. 被引量：3
  • 2赵庆展,周可法,张清.一种快速地形纹理生成和虚拟漫游方法[J].干旱区地理,2006,29(4):563-569. 被引量：4
  • 3邓常兴,芦利斌,王翔,何元磊.海量数据纹理三维视景仿真方法研究[J].航空兵器,2007,14(2):33-36. 被引量：2
  • 4Brown M, Majumder A, Yang R. Camera-based calibration techniques for seamless multi-projector displays [ J ]. IEEE Transactions on Visualization and Computer Graphics, 2005, 11(2) :193-206.
  • 5Raij A, Gill G, Majumder A, et al. PixelFlex2: comprehensive, automatic, casually-aligned multi-projector display [ C ]// Proceeding IEEE International Workshop Projector-Camera System. Washington DC, USA: IEEE Computer Society, 2003 : 1-8.
  • 6Ramesh R, van Jeroen B, Paul B. iLamps: geometrically aware and self-configuring projectors [ C ] // SIGGRAPH Proceedings. New York, USA: ACM Press,2003, 809-818.
  • 7Ramesh R, van Jeroen B, Thomas W. Quadric transfer for immersive curved display [ C - // Proceedings of EUROGRAPHICS. Washington DC, USA: IEEE Computer Society, 2004, 23 (3) : 451-460.
  • 8Philippe T J, Sebastien R, Martin T. Multi-projectors for Arbitrary Surfaces without Explicit Calibration nor Reconstruction [ C ]//Fourth International Conference on 3 D Digital Imaging and Modeling. Washington DC, USA: IEEE Computer Society, 2003 : 217-224.
  • 9Harville M, Culbertson B, Sobel I, et al. Practical methods for geometric and photometric correction of tiled projector displays on curved Surfaces[ C ] // Proceedings of the 2006 Conference on Computer Vision and Pattern Recognition Workshop. Washington DC, USA: IEEE Computer Society, 2006: 51-58.
  • 10Bhasker E, Juang R, Majumder A. Registration techniques for using imperfect and partially calibrated devices in planar multi- projector displays [ J]. IEEE Transactions on Visualization and Computer Graphics, 2007, 13 (6) : 1352-1359.

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软件学报
2004年 第12期

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