Evaluation of X-ray visualization techniques for vertical depth judgments in underground exploration

Eren, Mustafa Tolga; Balcısoy, Selim

doi:10.1007/s00371-016-1346-5

Cited by 20 publications

(6 citation statements)

References 28 publications

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“…Virtual shadow seems to be the most natural way to implicitly inform the collision, but it is not practical in the enclosed environment [30]. See-through (translucent) visualization is also thought to be an intuitive solution for displaying information in the occluded spaces [31]. Ariza et al [32] suggested that the binary proximity-based feedback outperform the continuous feedback in terms of faster movement speed and overall higher throughput in 3D selection task.…”

Section: Visual Feedback For Collisionmentioning

confidence: 99%

Using visual feedback to improve hand movement accuracy in confined-occluded spaces in virtual reality

Wang

Yao

et al. 2022

Vis Comput

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Accurate and informative hand-object collision feedback is of vital importance for hand manipulation in virtual reality (VR). However, to our best knowledge, the hand movement performance in fully-occluded and confined VR spaces under visual collision feedback is still under investigation. In this paper, we firstly studied the effects of several popular visual feedback of hand-object collision on hand movement performance. To test the effects, we conducted a within-subject user study (n=18) using a target-reaching task in a confined box. Results indicated that users had the best task performance with see-through visualization, and the most accurate movement with the hybrid of proximity-based gradation and deformation. By further analysis, we concluded that the integration of see-through visualization and proximity-based visual cue could be the best compromise between the speed and accuracy for hand movement in the enclosed VR space. On the basis, we designed a visual collision feedback based on projector decal,which incorporates the advantages of see-through and color gradation. In the end, we present demos of potential usage of the proposed visual cue.

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Section: Visual Feedback For Collisionmentioning

confidence: 99%

Using visual feedback to improve hand movement accuracy in confined-occluded spaces in virtual reality

Wang

Yao

et al. 2022

Vis Comput

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“…Some more recent works in this continuity also investigated perceptual issues using contemporary AR technology. A recent study evaluated the vertical depth judgement performance on different X-Ray visualisation techniques [10], revealing that users perform better in estimating depth of pipes when using a cut-away technique compared to a simple overlay and edge-based ghosting technique. A similar survey on virtual environments confirmed that cut-away performed best for understanding the spatial placement of underground infrastructure [40].…”

Section: Civil Engineering Applicationsmentioning

confidence: 99%

Augmented Reality for Subsurface Utility Engineering, Revisited

Hansen

Fleck

Stranner

et al. 2021

IEEE Trans. Visual. Comput. Graphics

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“…Changing the opacity of the virtual objects in a stereo display can improve the depth perception of two enclosed 3D objects 5 . X‐ray visualization techniques created a semitransparent object overlaid on the ground plane 7,8 and helped with the spatial understanding. Users were more accurate with decreasing opacity in interpreting three layers of occluded objects because the decreasing opacity setting made the difference between the layers more salient 45 .…”

Section: Related Workmentioning

confidence: 99%

“…Occlusion only gives information about the order of the objects but cannot give more information about the depth. X‐ray visualization techniques 7–10 and color blending rendering method 5 are wildly used to create a transparency layout for spatial understanding in AR. If the virtual objects are transparent, users can see not only the virtual objects but also the real environment.…”

Section: Introductionmentioning

confidence: 99%

Effects of shading model and opacity on depth perception in optical see‐through augmented reality

et al. 2020

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Augmented reality (AR) technologies create an immersive environment by augmenting the real world with rendered virtual objects. One of the key requirements of an AR system is to understand how users perceive the depth of an AR object. Perceived distances to AR objects can be based on various depth cues such as rendering method used for the virtual object. The existing researches on the shading model and opacity mainly focus on the shape perception or the position relationship of several virtual objects in the virtual environment. We predicted that shading models and opacity would impact a user's estimation of a virtual object's depth in AR. We conducted two experiments to investigate the impact of color, size (Experiment 1), shading model, and opacity (Experiment 2) on the depth perception in an optical see‐through head‐mounted display (HMD). We found that the virtual object's color and size impact estimation efficacy. An interaction effect between color and size was also found. The results showed that shading models with specular highlights could help to improve depth perception in AR. Additionally, users had the lowest matching error when the opacity of a virtual object was 0.8.

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Evaluation of X-ray visualization techniques for vertical depth judgments in underground exploration

Cited by 20 publications

References 28 publications

Using visual feedback to improve hand movement accuracy in confined-occluded spaces in virtual reality

Using visual feedback to improve hand movement accuracy in confined-occluded spaces in virtual reality

Augmented Reality for Subsurface Utility Engineering, Revisited

Effects of shading model and opacity on depth perception in optical see‐through augmented reality

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