CFP last date
20 January 2025
Reseach Article

Improved Variance Cut Algorithm for Light Source Estimation in Augmented Reality

by Divya Kamboj, Wankui Liu
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 85 - Number 19
Year of Publication: 2014
Authors: Divya Kamboj, Wankui Liu
10.5120/15096-3426

Divya Kamboj, Wankui Liu . Improved Variance Cut Algorithm for Light Source Estimation in Augmented Reality. International Journal of Computer Applications. 85, 19 ( January 2014), 24-27. DOI=10.5120/15096-3426

@article{ 10.5120/15096-3426,
author = { Divya Kamboj, Wankui Liu },
title = { Improved Variance Cut Algorithm for Light Source Estimation in Augmented Reality },
journal = { International Journal of Computer Applications },
issue_date = { January 2014 },
volume = { 85 },
number = { 19 },
month = { January },
year = { 2014 },
issn = { 0975-8887 },
pages = { 24-27 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume85/number19/15096-3426/ },
doi = { 10.5120/15096-3426 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:02:54.295812+05:30
%A Divya Kamboj
%A Wankui Liu
%T Improved Variance Cut Algorithm for Light Source Estimation in Augmented Reality
%J International Journal of Computer Applications
%@ 0975-8887
%V 85
%N 19
%P 24-27
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Consistent illumination plays very important role in efficient integration of virtual objects into real world scene. Real time photometric registration requires efficient detection and segmentation of the brighter regions in an image to provide better light source detection and thus efficient illumination of virtual objects is possible. The paper presents a technique for light source sampling of images taken through a fish-eye Camera. These images taken through this Camera are sampled using improved variance-cut algorithm. The technique helps to detect the brighter region efficiently. With deferred rendering, some experimental results demonstrate that the proposed method produces plausible AR visualization

References
  1. K. Jacobs and C. LoscosClassification of Illumination Methods for Mixed Reality. In Proceedings Computer Graphics Forum, 2006
  2. K. Hara, K. Nishino, and K. Ikeuchi, "Determining reflectance and light position from a single image without distant illumination assumption," inProc. IEEE Int. Conf. Comput. Vis. , 2003, vol. 1, pp. 560–567
  3. Yang Wang and DimitrisSamaras ,"Estimation of Multiple Illuminants from a Single Image of Arbitrary Known Geometry". In ECCV '02 Proceedings of the 7th European Conference on Computer Vision-Part III, Springer-Verlag 2002
  4. Alexandros Panagopoulos, Chaohui Wang, Dimitris Samaras and Nikos Paragios," Illumination Estimation and Cast Shadow Detection through a Higher-order Graphical Model". In Computer Vision and Pattern Recognition (CVPR), 2011 IEEE
  5. KusumaAgusanto, Li Li, Zhu Chuangui, Ng Wan Sing, "Photorealistic rendering for augmented reality using environment illumination ". In Proceedings of the Second IEEE and ACM International Symposium on Mixed and Augmented Reality (ISMAR '03)
  6. Jonas Unger, Andreas Wenger, Tim Hawkins, Andrew Gardner, and Paul Debevec,"Capturing and rendering with incident light" . In Eurographics Symposium on Rendering: 14th Eurographics Workshop on Rendering. , pages 141. 149, June 2003
  7. Gibson S. , Cook, J. , Howard, T. , and Hubbold, R. , 2003,"Rapid shadow generation in real-world lighting Environments". In Proceedings: EuroGraphics Symposium on Rendering
  8. Taeone Kim, Ki-Sang Hong . "A Practical Approach for Estimating Illumination Distribution from Shadows Using a Single Image". In Wiley Periodicals, 2005
  9. Yang Wang and DimitrisSamaras . "Estimation of multiple directional light sources for synthesis of augmented reality images". In Elsevier Science , 2003.
  10. Matthias Korn, MaikStange, Andreas von Arb,Lisa Blum, Michael Kreil, Kathrin-Jennifer Kunze. "Interactive Augmentation of Live Images using a HDR Stereo Camera" In Journal of Virtual Reality and Broadcasting, Volume 4, 2007
  11. SeokjunLee ; Soon Ki Jung ,"Estimation of illuminants for plausible lighting in augmented reality". InUbiquitous Virtual Reality (ISUVR), 2011
  12. Jae Doug Yoo and Kwan H. Lee, "Real Time Light Source Estimation Using a Fish-Eye Lens with ND Filters". In International Symposium on Ubiquitous Virtual Reality, © 2008 IEEE,ISUVR. 2008.
  13. P. Debevec, " A median cut algorithm for lightprobes sampling", In poster of SIGGRAPH 2005,ACM, Los Angeles.
Index Terms

Computer Science
Information Sciences

Keywords

AR(augmented reality) illumination median-cut algorithm