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A Fast Silhouette Detection Algorithm for Shadow Volumes in Augmented Reality

Kolivand, H and Kolivand, M and Sunar, MS and Arsad, M (2016) A Fast Silhouette Detection Algorithm for Shadow Volumes in Augmented Reality. International Journal of Computer, Electrical, Automation, Control and Information Engineering, 10 (4).

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Abstract

Real-time shadow generation in virtual environments and Augmented Reality (AR) was always a hot topic in the last three decades. Lots of calculation for shadow generation among AR needs a fast algorithm to overcome this issue and to be capable of implementing in any real-time rendering. In this paper, a silhouette detection algorithm is presented to generate shadows for AR systems. Δ+algorithm is presented based on extending edges of occluders to recognize which edges are silhouettes in the case of real-time rendering. An accurate comparison between the proposed algorithm and current algorithms in silhouette detection is done to show the reduction calculation by presented algorithm. The algorithm is tested in both virtual environments and AR systems. We think that this algorithm has the potential to be a fundamental algorithm for shadow generation in all complex environments.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QA Mathematics > QA76 Computer software
Divisions: Computer Science
Publisher: WASET World Academy of Science, Engineering and Technology
Date Deposited: 27 Feb 2017 11:02
Last Modified: 10 Sep 2017 10:08
DOI or Identification number: 3
URI: http://researchonline.ljmu.ac.uk/id/eprint/5711

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