Handling Occlusions for Robust Augmented Reality Systems

Maïdi, Madjid; Ababsa, Fakhreddine; Mallem, Malik

doi:10.1155/2010/146123

Cited by 7 publications

(7 citation statements)

References 2 publications

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“…Although sensor‐based methods are fast and simple to process, they do not have the high precision required for visualizing underground infrastructures (Karimi, Sadeghi Niaraki, & Hosseini Naveh, 2019). Although, noise elimination using a low pass filter or Kalman filter increases the precision, they do not provide very high precision (Maidi et al., 2010).…”

Section: Related Workmentioning

confidence: 99%

“…Augmented reality (AR) technology can enhance the visualization and representation of a 3D real‐world object, such as underground infrastructure using mobile phones (Gupta & Lohani, 2014; Schall et al., 2009). Therefore, civil engineers can prevent drilling mistakes in the field (Maidi, Ababsa, & Mallem, 2010). One of the significant requirements for AR is identifying and locating real‐world objects concerning a person's head or a camera (Hoff, Nguyen, & Lyon, 1996).…”

Section: Introductionmentioning

confidence: 99%

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A new method for automatic and accurate coded target recognition in oblique images to improve augmented reality precision

Karimi

Zakariyaeinejad

Sadeghi‐Niaraki

et al. 2022

Transactions in GIS

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new method for automatic and accurate coded target recognition in oblique images to improve augmented reality precision

Karimi

Zakariyaeinejad

Sadeghi‐Niaraki

et al. 2022

Transactions in GIS

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“…MR research has identified several solutions (Maidi, Ababsa, and Mallem 2010;Tian, Guan, and Wang 2010) to this issue; however, many rely upon controlled environments, fiducial markers, or detailed knowledge of the environment's geometry. This is not always possible to achieve for MR applications set in large-scale and uncontrolled environments.…”

Section: Visualization Limitationsmentioning

confidence: 99%

Flexible Mixed Reality and Situated Simulation as Emerging Forms of Geovisualization

Lonergan¹,

Hedley²

2014

Cartographica

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This article reports on the applied research behind a geospatial mobile augmented reality system that can run in situ simulations of dynamic spatial phenomena. The authors summarize previous work that has led to a critical convergence of enabling technologies and identify new forms of geovisualization facilitated by these technologies. The article introduces situated simulation as a new form of augmented situated geovisual analysis, using two versions of a prototype system called A Touch of Rain. This system allows users to run augmented precipitation simulations in real space, in which virtual rain falls on and interacts with real landscapes and buildings, and thus to perform augmented geovisual analysis. This method opens up new opportunities to link geospatial data, models, and everyday spaces. The authors conclude by discussing implications and opportunities for GIScience. RÉSUMÉCet article traite de la recherche appliquée derrière un système géospatial mobile augmenté de réalité et capable de produire des simulations in situ simulations de phénomènes spatiaux dynamiques. Les auteurs résument le travail antérieur qui a mené à une convergence critique de technologies-clés et définissent de nouvelles formes de géovisualisation engendrées par ces technologies. L'article présente la simulation localisée comme une nouvelle forme d'analyse visuelle localisée augmentée en utilisant deux versions d'un système prototype baptisé A Touch of Rain. Ce système permet aux utilisateurs d'exécuter des simulations de précipitations augmentées dans un espace réel, dans lesquelles la pluie virtuelle tombe et interagit avec des paysages et des édifices réels, et ainsi d'effectuer des analyses géovisuelles augmentées. Cette méthode offre de nouvelles possibilités de relier des données géospatiales, des modèles et des espaces réguliers. Les auteurs concluent par une discussion des implications et des débouchés de la SIG.

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“…In, an incremental feature tracking is also applied. In these cases, features inside the marker are detected and tracked.…”

Section: Related Workmentioning

confidence: 99%

“…Compared with the solution in, our solution only uses a single marker, so it minimizes environment adaptation. Furthermore, in contrast to the methods in, our proposal combines an incremental tracking with a tracking based on appearance to offer a robust tracking and avoid drift. Additionally, our design is based on customizable textures that are placed in the frame of the marker, which generates, by default, a uniform distribution of features, that is, it is not scene dependent.…”

Section: Related Workmentioning

confidence: 99%

A new marker design for a robust marker tracking system against occlusions

Álvarez

Leizea

Borro

2012

Computer Animation & Virtual

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Marker systems are a widely used optical tracking method that does not support occlusions. Thus, this paper proposes a new marker design to overcome the problem of marker occlusions. It is highly adaptable, because it can be used by any marker tracking system that uses its central area to codify the digital identification. Our proposal takes advantage of an untapped frame to place some textures that will be tracked during marker occlusion. In addition, these textures are customizable, which lets users make their own designs. Two tracking methods are combined to offer a robust tracking, updating the six degrees of freedom of the camera in real time. The first one is a fast technique based on temporal coherence, whereas the second one is a robust technique based on appearance, which is used as a recovery mode. Copyright © 2012 John Wiley & Sons, Ltd.

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Handling Occlusions for Robust Augmented Reality Systems

Cited by 7 publications

References 2 publications

A new method for automatic and accurate coded target recognition in oblique images to improve augmented reality precision

A new method for automatic and accurate coded target recognition in oblique images to improve augmented reality precision

Flexible Mixed Reality and Situated Simulation as Emerging Forms of Geovisualization

A new marker design for a robust marker tracking system against occlusions

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