Augmented Reality is increasingly used for visualizing underground networks. However, standard visual cues for depth perception have never been thoroughly evaluated via user experiments in a context involving physical occlusions (e.g., ground) of virtual objects (e.g., elements of a buried network). We therefore evaluate the benefits and drawbacks of two techniques based on combinations of two well-known depth cues: grid and shadow anchors. More specifically, we explore how each combination contributes to positioning and depth perception. We demonstrate that when using shadow anchors alone or shadow anchors combined with a grid, users generate 2.7 times fewer errors and have a 2.5 times lower perceived workload than when only a grid or no visual cues are used. Our investigation shows that these two techniques are effective for visualizing underground objects. We also recommend the use of one technique or another depending on the situation.< Réduire

Mots clés en anglais

Projection techniques

Depth cues

Visualization

Underground objects

Augmented reality

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https://oskar-bordeaux.fr/handle/20.500.12278/172886

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http://dx.doi.org/10.1007/978-3-030-85623-6_35

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Projection Grid Cues: An Efficient Way to Perceive the Depths of Underground Objects in Augmented Reality

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Projection Grid Cues: An Efficient Way to Perceive the Depths of Underground Objects in Augmented Reality

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Résumé en anglais

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URI

DOI

Unités de recherche