Using real shadows to create virtual ones

被引:0
|
作者
Madsen, CB [1 ]
机构
[1] Aalborg Univ, Lab Comp Vis & Image Anal, DK-9220 Aalborg, Denmark
来源
IMAGE ANALYSIS, PROCEEDINGS | 2003年 / 2749卷
关键词
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In Augmented Reality (AR) real imagery is superimposed by computer graphics renderings of virtual objects. This paper addresses the problem of creating the illusion that the virtual objects cast credible shadows in the real scenario. A step towards this is to be able to detect shadow regions in images of natural scenes, and this paper describes an approach to such shadow detection. The shadow detection can distinguish between directly fit areas, penumbra (half-shadow) areas, and umbra (full shadow) areas. Furthermore, it is demonstrated how virtual shadows can-be created which appear very similar to the real shadows.
引用
收藏
页码:820 / 827
页数:8
相关论文
共 50 条
  • [31] Ultra computer will create 'virtual earth'
    不详
    SCIENTIFIC AMERICAN, 1998, 279 (01) : 6 - 6
  • [32] Using X3D to create Virtual Reality collaborative learning
    Huang, Hsiu-Mei
    Peng, Min-Cong
    Liao, Ying-Chang
    PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON INFORMATION AND MANAGEMENT SCIENCES, 2009, 8 : 368 - 372
  • [33] Using virtual interviewing to create a more accessible hybrid academic job market
    Termini, Christina M.
    Rutaganira, Florentine U. N.
    Palavicino-Maggio, Caroline B.
    Spriggs, Chelsey C.
    Evans, Chantell S.
    McReynolds, Melanie R.
    CELL, 2021, 184 (26) : 6217 - 6221
  • [34] Using Virtual Agents and Interactive Media to Create an ElectronixTutor for the Office of Naval Research
    Baer, Whitney O.
    Cheng, Qinyu
    McGlown, Cadarrius
    Gong, Yan
    Cai, Zhiqiang
    Graesser, Arthur C.
    INTELLIGENT VIRTUAL AGENTS, IVA 2016, 2016, 10011 : 513 - 515
  • [35] Using photogrammetry to create virtual permanent plots in rare and threatened plant communities
    Tirrell, Andrea J. J.
    Putnam, Aaron E. E.
    Cianchette, Michael I. J.
    Gill, Jacquelyn L. L.
    APPLICATIONS IN PLANT SCIENCES, 2023, 11 (05):
  • [36] Using Rules & Pathway Databases to Create Quantitative Mechanistic Models in Virtual Cell
    Blinov, Michael L.
    Vasilescu, Dan
    Schaff, James C.
    Moraru, Ion I.
    Loew, Leslie M.
    BIOPHYSICAL JOURNAL, 2015, 108 (02) : 473A - 473A
  • [37] Dynamic radiosity shadows for interactive virtual environments
    Schoffel, F
    FUTURE GENERATION COMPUTER SYSTEMS, 1998, 14 (3-4) : 223 - 229
  • [38] Ultrasound Waves Create Virtual Objects
    不详
    ELECTRONICS WORLD, 2009, 115 (1874): : 6 - 6
  • [39] Using the Semantic Web technologies in virtual engineering tools to create extensible interfaces
    McCorkle D.S.
    Bryden K.M.
    Virtual Reality, 2007, 11 (4) : 253 - 260
  • [40] Using real objects to communicate with virtual characters
    Gebhard, P
    Klesen, M
    INTELLIGENT VIRTUAL AGENTS, PROCEEDINGS, 2005, 3661 : 99 - 110