research-article

Occlusion-free camera control for multiple targets

Authors:

M. Christie,

J.-M. Normand,

P. OlivierAuthors Info & Claims

SCA '12: Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation

Pages 59 - 64

Published: 29 July 2012 Publication History

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Abstract

Maintaining the visibility of target objects is a fundamental problem in automatic camera control for 3D graphics applications. Practical real-time camera control algorithms generally only incorporate mechanisms for the evaluation of the visibility of target objects from a single viewpoint, and idealize the geometric complexity of target objects. Drawing on work in soft shadow generation, we perform low resolution projections, from target objects to rapidly compute their visibility for a sample of locations around the current camera position. This computation is extended to aggregate visibility in a temporal window to improve camera stability in the face of partial and sudden onset occlusion. To capture the full spatial extent of target objects we use a stochastic approximation of their surface area. Our implementation is the first practical occlusion-free real-time camera control framework for multiple target objects. The result is a robust component that can be integrated to any virtual camera control system that requires the precise computation of visibility for multiple targets.

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References

[1]

{ARHM00} Agrawala M., Ramamoorthi R., Heirich A., Moll L.: Efficient image-based methods for rendering soft shadows. In SIGGRAPH '00: Proceedings of the 27th annual conference on Computer graphics and interactive techniques (New York, NY, USA, 2000), ACM Press/Addison-Wesley Publishing Co., pp. 375--384. 2

Digital Library

Google Scholar

[2]

{BL99} Bares W. H., Lester J. C.: Intelligent multi-shot visualization interfaces for dynamic 3D worlds. In Proceedings of the 4th international conference on Intelligent user interfaces (IUI 99) (New York, NY, USA, 1999), ACM Press, pp. 119--126. 2

Digital Library

Google Scholar

[3]

{COCSD00} Cohen-Or D., Chrysanthou Y. L., Silva C. T., Durand F.: A survey of visibility for walkthrough applications. IEEE Transactions on Visualization and Computer Graphics 9, 3 (2000), 412Ð431. 2

Digital Library

Google Scholar

[4]

{CON08} Christie M., Oliver P., Normand J.-M.: Camera control in computer graphics. Computer Graphics Forum 27, 8 (2008), 2197--2218. 2

Crossref

Google Scholar

[5]

{Dur99} Durand F.: 3D Visibility: Analytical Study and Application. PhD thesis, Université Joseph Fourier, Grenoble, Grenoble, France, July 1999. 2

Google Scholar

[6]

{Dur00} Durand F.: ACM SIGGRAPH Course Notes: Visibility, Problems, Techniques, and Applications. ACM Press, New York, NY, 2000, ch. A multidisciplinary survey of visibility. 2

Google Scholar

[7]

{DZ95} Drucker S. M., Zeltzer D.: Camdroid: A System for Implementing Intelligent Camera Control. In Symposium on Interactive 3D Graphics (1995), pp. 139--144. URL: citeseer.ist.psu.edu/drucker95camdroid.html. 2

Digital Library

Google Scholar

[8]

{Gio04} Giors J.: The full spectrum warrior camera system. In GDC '04: Game Developers Conference 2004 (2004). 2

Google Scholar

[9]

{HHS01} Halper N., Helbing R., Strothotte T.: A camera engine for computer games: Managing the trade-off between constraint satisfaction and frame coherence. In Proceedings of the Eurographics Conference (EG 2001) (2001), vol. 20, Computer Graphics Forum, pp. 174--183. 2

Crossref

Google Scholar

[10]

{HO00} Halper N., Olivier P.: CAMPLAN: A Camera Planning Agent. In Smart Graphics 2000 AAAI Spring Symposium (March 2000), pp. 92--100. 2

Google Scholar

[11]

{PBG92} Phillips C. B., Badler N. I., Granieri J.: Automatic viewing control for 3d direct manipulation. In Proceedings of the 1992 symposium on Interactive 3D graphics (1992), ACM Press New York, NY, USA, pp. 71--74. 2

Digital Library

Google Scholar

Cited By

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Chiu PHuang JKitamura Y(2021)Enabling Robot-assisted Motion Capture with Human Scale Tracking OptimizationProceedings of the 27th ACM Symposium on Virtual Reality Software and Technology10.1145/3489849.3489881(1-6)Online publication date: 8-Dec-2021
https://dl.acm.org/doi/10.1145/3489849.3489881

Index Terms

Occlusion-free camera control for multiple targets
1. Computing methodologies
  1. Computer graphics
    1. Animation

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Information

Published In

SCA '12: Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation

July 2012

325 pages

ISBN:9783905674378

Conference Chairs:
Ronan Boulic
Ecole Polytechnique Fédérale de Lausanne
,
Taku Komura
University of Edinburgh

Publisher

Eurographics Association

Goslar, Germany

Publication History

Published: 29 July 2012

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Research-article

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SCA '12

Sponsor:

SIGGRAPH
EUROGRAPHICS

SCA '12: The ACM SIGGRAPH / Eurographics Symposium on Computer Animation

July 29 - 31, 2012

Lausanne, Switzerland

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SCA '12 Paper Acceptance Rate 27 of 80 submissions, 34%;

Overall Acceptance Rate 183 of 487 submissions, 38%

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Cited By

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Chiu PHuang JKitamura Y(2021)Enabling Robot-assisted Motion Capture with Human Scale Tracking OptimizationProceedings of the 27th ACM Symposium on Virtual Reality Software and Technology10.1145/3489849.3489881(1-6)Online publication date: 8-Dec-2021
https://dl.acm.org/doi/10.1145/3489849.3489881

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