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Real-time geometric registration using feature landmark database for augmented reality applications

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dc.contributor.author Taketomi, Takafumi en
dc.contributor.author Sato, Tomokazu en
dc.contributor.author Yokoya, Naokazu en
dc.date.accessioned 2016-12-26T06:41:23Z en
dc.date.available 2016-12-26T06:41:23Z en
dc.date.issued 2009 en
dc.identifier.uri http://hdl.handle.net/10061/11228 en
dc.description The Engineering Reality of Virtual Reality 2009 , Jan 18-22, 2009 , San Jose, CA, USA en
dc.description.abstract In the field of augmented reality, it is important to solve a geometric registration problem between real and virtual worlds. To solve this problem, many kinds of image based online camera parameter estimation methods have been proposed. As one of these methods, we have been proposed a feature landmark based camera parameter estimation method. In this method, extrinsic camera parameters are estimated from corresponding landmarks and image features. Although the method can work in large and complex environments, our previous method cannot work in real-time due to high computational cost in matching process. Additionally, initial camera parameters for the first frame must be given manually. In this study, we realize real-time and manual-initialization free camera parameter estimation based on feature landmark database. To reduce the computational cost of the matching process, the number of matching candidates is reduced by using priorities of landmarks that are determined from previously captured video sequences. Initial camera parameter for the first frame is determined by a voting scheme for the target space using matching candidates. To demonstrate the effectiveness of the proposed method, applications of landmark based real-time camera parameter estimation are demonstrated in outdoor environments. en
dc.language.iso en en
dc.publisher SPIE en
dc.rights Copyright c 2009 SPIE en
dc.subject landmark database en
dc.subject natural feature en
dc.subject augmented reality en
dc.subject camera parameter estimation en
dc.title Real-time geometric registration using feature landmark database for augmented reality applications en
dc.type.nii Conference Paper en
dc.textversion Author en
dc.identifier.volume 7238 en
dc.relation.doi 10.1117/12.805748 en
dc.identifier.NAIST-ID 73296261 en
dc.identifier.NAIST-ID 73292633 en
dc.identifier.NAIST-ID 73292286 en


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