Hybrid Tracking for Outdoor Augmented Reality Applications
IEEE Computer Graphics and Applications
Interactive augmented reality techniques for construction at a distance of 3D geometry
EGVE '03 Proceedings of the workshop on Virtual environments 2003
A Motion-Stabilized Outdoor Augmented Reality System
VR '99 Proceedings of the IEEE Virtual Reality
Hybrid Inertial and Vision Tracking for Augmented Reality Registration
VR '99 Proceedings of the IEEE Virtual Reality
ISWC '97 Proceedings of the 1st IEEE International Symposium on Wearable Computers
A Wearable Computer System with Augmented Reality to Support Terrestrial Navigation
ISWC '98 Proceedings of the 2nd IEEE International Symposium on Wearable Computers
Autocalibration of an Electronic Compass for Augmented Reality
ISMAR '05 Proceedings of the 4th IEEE/ACM International Symposium on Mixed and Augmented Reality
Going out: robust model-based tracking for outdoor augmented reality
ISMAR '06 Proceedings of the 5th IEEE and ACM International Symposium on Mixed and Augmented Reality
Using aerial photographs for improved mobile AR annotation
ISMAR '06 Proceedings of the 5th IEEE and ACM International Symposium on Mixed and Augmented Reality
Initialisation for Visual Tracking in Urban Environments
ISMAR '07 Proceedings of the 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality
Semi-automatic Annotations in Unknown Environments
ISMAR '07 Proceedings of the 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality
Fast annotation and modeling with a single-point laser range finder
ISMAR '08 Proceedings of the 7th IEEE/ACM International Symposium on Mixed and Augmented Reality
Pose tracking from natural features on mobile phones
ISMAR '08 Proceedings of the 7th IEEE/ACM International Symposium on Mixed and Augmented Reality
Global pose estimation using multi-sensor fusion for outdoor Augmented Reality
ISMAR '09 Proceedings of the 2009 8th IEEE International Symposium on Mixed and Augmented Reality
Wide area localization on mobile phones
ISMAR '09 Proceedings of the 2009 8th IEEE International Symposium on Mixed and Augmented Reality
Parallel Tracking and Mapping on a camera phone
ISMAR '09 Proceedings of the 2009 8th IEEE International Symposium on Mixed and Augmented Reality
The Frankencamera: an experimental platform for computational photography
ACM SIGGRAPH 2010 papers
Real-time panoramic mapping and tracking on mobile phones
VR '10 Proceedings of the 2010 IEEE Virtual Reality Conference
Online Creation of Panoramic Augmented Reality Annotations on Mobile Phones
IEEE Pervasive Computing
Editorial: Special Section on Mobile Augmented Reality
Computers and Graphics
Smart-phone augmented reality for public participation in urban planning
Proceedings of the 23rd Australian Computer-Human Interaction Conference
Audio stickies: visually-guided spatial audio annotations on a mobile augmented reality platform
Proceedings of the 25th Australian Computer-Human Interaction Conference: Augmentation, Application, Innovation, Collaboration
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A common goal of outdoor augmented reality (AR) is the presentation of annotations that are registered to anchor points in the real world. We present an enhanced approach for registering and tracking such anchor points, which is suitable for current generation mobile phones and can also successfully deal with the wide variety of viewing conditions encountered in real life outdoor use. The approach is based on on-the-fly generation of panoramic images by sweeping the camera over the scene. The panoramas are then used for stable orientation tracking, while the user is performing only rotational movements. This basic approach is improved by several new techniques for the re-detection and tracking of anchor points. For the re-detection, specifically after temporal variations, we first compute a panoramic image with extended dynamic range, which can better represent varying illumination conditions. The panorama is then searched for known anchor points, while orientation tracking continues uninterrupted. We then use information from an internal orientation sensor to prime an active search scheme for the anchor points, which improves matching results. Finally, global consistency is enhanced by statistical estimation of a global rotation that minimizes the overall position error of anchor points when transforming them from the source panorama in which they were created, to the current view represented by a new panorama. Once the anchor points are redetected, we track the user's movement using a novel 3-degree-of-freedom orientation tracking approach that combines vision tracking with the absolute orientation from inertial and magnetic sensors. We tested our system using an AR campus guide as an example application and provide detailed results for our approach using an off-the-shelf smartphone. Results show that the re-detection rate is improved by a factor of 2 compared to previous work and reaches almost 90% for a wide variety of test cases while still keeping the ability to run at interactive frame rates.