Interaction Driven Enhancement of Depth Perception in Angiographic Volumes

Drouin, Simon; Giovanni, Daniel A. Di; Kersten-Oertel, Marta; Collins, D. Louis

doi:10.1109/tvcg.2018.2884940

Cited by 7 publications

(15 citation statements)

References 40 publications

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“…Despite some of the drawbacks of gamification, using this paradigm allowed this study to collect more data samples than many similar studies [1,4,6,7,10]. Furthermore, it showed that our results were more similar to those of studies with more data samples and participants (2380 for Kersten-Oertel et al [1] and 2850 for Kreiser et al [10]) than those of studies with fewer samples (700 for Ropinski et al [4] and 600 for Abhari et al [6]).…”

Section: Discussionsupporting

confidence: 49%

“…To improve the depth perception and spatial understanding of vascular volumes, numerous perceptually driven vessel visualization methods have been developed [3,4,[7][8][9][10]. An overview of the most related studies and their results is presented in Table 1.…”

Section: Motivationmentioning

confidence: 99%

“…Blinn-Phong shading [22] is a photorealistic illumination model that describes how a surface reflects light when illuminated by one or multiple light sources. Similar to Drouin et al [7], we used it as the baseline visualization technique. In our implementation, a single-directional light source was used whose direction was parallel to the view direction (Figure 1A).…”

Section: Implemented Visualizationsmentioning

confidence: 99%

See 2 more Smart Citations

Connect Brain, a Mobile App for Studying Depth Perception in Angiography Visualization: Gamification Study

Titov,

Drouin,

Kersten-Oertel

2023

JMIR Neurotech

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Background One of the bottlenecks of visualization research is the lack of volunteers for studies that evaluate new methods and paradigms. The increased availability of web-based marketplaces, combined with the possibility of implementing volume rendering, a computationally expensive method, on mobile devices, has opened the door for using gamification in the context of medical image visualization studies. Objective We aimed to describe a gamified study that we conducted with the goal of comparing several cerebrovascular visualization techniques and to evaluate whether gamification is a valid paradigm for conducting user studies in the domain of medical imaging. Methods The study was implemented in the form of a mobile game, Connect Brain, which was developed and distributed on both Android (Google LLC) and iOS (Apple Inc) platforms. Connect Brain features 2 minigames: one asks the player to make decisions about the depth of different vessels, and the other asks the player to determine whether 2 vessels are connected. Results The gamification paradigm, which allowed us to collect many data samples (5267 and 1810 for the depth comparison and vessel connectivity tasks, respectively) from many participants (N=111), yielded similar results regarding the effectiveness of visualization techniques to those of smaller in-laboratory studies. Conclusions The results of our study suggest that the gamification paradigm not only is a viable alternative to traditional in-laboratory user studies but could also present some advantages.

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Section: Discussionsupporting

confidence: 49%

Section: Motivationmentioning

confidence: 99%

Section: Implemented Visualizationsmentioning

confidence: 99%

See 1 more Smart Citation

Connect Brain, a Mobile App for Studying Depth Perception in Angiography Visualization: Gamification Study

Titov,

Drouin,

Kersten-Oertel

2023

JMIR Neurotech

Self Cite

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“…For example, there is a certain degree of depth perception distortion when using our MR‐based hoisting operation system. Depth perception in MR may be affected by various factors (e.g., the display devices, 6 the rendering technology, 7 and the depth cues). Contemporary research has mostly sought to correct depth perception errors by adding various depth cues 8 .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of depth cues on depth perception in interactive mixed reality simulation systems

Wang

et al. 2021

J Soc Info Display

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Implementing an interactive mixed reality simulation system is an economical and risk‐free method for skill training. However, research to enhance the accuracy of mixed reality simulation has always been a challenge. One of the key indicators of a simulation's accuracy is the user's depth perception. Adding depth cues to the simulation scene can effectively increase the accuracy of depth perception. Therefore, in this study, we designed five depth cues to find the one most beneficial for depth perception: (1) depth bar, (2) location ball, (3) fixed window, (4) 3D wireframe, and (5) movable silhouettes. These depth cues were tested using an experimental system with two sets of experimental settings. The first experiment compared the five depth cues at five different viewing distances and showed that the movable silhouettes benefited depth perception accuracy the most. The second experiment compared depth perception accuracies among three different horizontal tilt settings, showing that depth perception accuracy is dependent on the horizontal tilt. Furthermore, different depth perception accuracies were obtained with and without depth cues, proving that the effects from the horizontal tilts were independent of depth cues. The results of these studies provide references for designing interactive mixed reality simulation systems.

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“…In particular, we aim at determining whether the effectiveness of the selected depth cues is affected by the increased expressivity provided by VR devices. Building on the work of Drouin et al (2020) we aimed to determine the impact of dynamic and interactive depth cues within a VR context. Thus, this work addresses the need for a better understanding of the interplay between interactive perceptual rendering and the impact it has on spatial understanding of volume rendered medical data within VR contexts.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Interactive Cues on the Perception of Angiographic Volumes in Virtual Reality

Titov

Kersten-Oertel

Drouin

2021

Computer Methods in Biomechanics and Biomedical Engineering: Im

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In this paper, we evaluate the effect of depth cues on the perception of threedimensional cerebral angiographic data in a virtual reality (VR) environment. Specifically, a user study was conducted to evaluate the effectiveness of shading, pseudochromadepth and aerial perspective, both with and without a dynamic component, where the volume rendering parameters are modified based on the motion of the VR controllers. The results of the study showed that the type of cue that is used has little impact on decision time or relative depth perception, contrary to what has been previously observed in related works using 2D displays. However, shading resulted in better spatial understanding of local vascular structures. In terms of the effect of the dynamic cues, although they resulted in worse depth perception, they also resulted in less head movement which may provide a more ergonomic and intuitive solution for data exploration. This work is a first step towards gaining a better understanding of the interplay between interactive perceptual rendering and the impact it has on spatial understanding of volume rendered medical data within VR contexts.

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Interaction Driven Enhancement of Depth Perception in Angiographic Volumes

Cited by 7 publications

References 40 publications

Connect Brain, a Mobile App for Studying Depth Perception in Angiography Visualization: Gamification Study

Connect Brain, a Mobile App for Studying Depth Perception in Angiography Visualization: Gamification Study

Design and analysis of depth cues on depth perception in interactive mixed reality simulation systems

The Effect of Interactive Cues on the Perception of Angiographic Volumes in Virtual Reality

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