A Novel Approach to On-Site Camera Calibration and Tracking for MR Pre-visualization Procedure

Authors:
Wataru Toishita;Yutaka Momoda;Ryuhei Tenmoku;Fumihisa Shibata;Hideyuki Tamura;Takafumi Taketomi;Tomokazu Sato;Naokazu Yokoya
Affiliations:
Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan;Nara Institute of Science and Technology, Ritsumeikan University, Japan
Venue:
VMR '09 Proceedings of the 3rd International Conference on Virtual and Mixed Reality: Held as Part of HCI International 2009
Year:
2009

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Abstract

This paper presents camera calibration and tracking method for mixed reality based pre-visualization system for filmmaking. The proposed calibration method collects environmental information required for tracking efficiently since the rough camera path and target environment are known before actual shooting. Previous camera tracking methods using natural feature are suitable for outdoor environment. However, it takes large human cost to construct the database. Our proposed method reduces the cost of calibration process by using fiducial markers. Fiducial markers are used as reference points and feature landmark database is constructed automatically. In shooting phase, moreover, the speed and robustness of tracking are improved by using SIFT descriptor.