Smooth assembled mappings for large-scale real walking

Dong, Zhi-Chao; Fu, Xiao‐Ming; Zhang, Chi; Wu, Kang; Liu, Ligang

doi:10.1145/3130800.3130893

Cited by 60 publications

(40 citation statements)

References 24 publications

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“…Software-based techniques have also been proposed for achieving the same effect by solely manipulating the VE. These can be divided into two groups: (a) techniques that use the user's head rotations and translations for scaling the VE dynamically based on the scenario as in [1,36,38], and (b) techniques that partially or fully warp the virtual environment [10,51]. Due to the dominance of the visual sense over the other human senses, these techniques focus mainly on reducing the effect of subtle visual distractions resulting from repeated redirection.…”

Section: Redirection and Vrmentioning

confidence: 99%

Inattentional Blindness for Redirected Walking Using Dynamic Foveated Rendering

Joshi

Poullis

2020

IEEE Access

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Figure 1: Left: Orientation-based redirection using dynamic-foveated rendering which leverages the effect of inattentional blindness induced by a cognitive task. The blending (e.g. parallax of green alien) in the transition zone between the rotated virtual environment (VE) (non-foveal) and the non-rotated VE (foveal) is imperceptible by the users due to inattentional blindness. Right: The path walked in physical tracked space (PTS) up to that point is shown in orange color. The corresponding path in the VE is shown in blue color. The cyan-colored box indicates the 4 × 4m 2 available PTS and the camera icon inside the box indicates the location of the user w.r.t. the PTS. Even with room-scale PTS such as the one used, the users were able to walk distances in the virtual environment (VE) which are up to almost 18× orders of magnitude higher than the longest distance in the PTS; maximum recorded in experiments was 103.9m. Angular gain for the frame shown is at its maximum i.e. 13.5 • . ABSTRACTRedirected walking is a Virtual Reality(VR) locomotion technique which enables users to navigate virtual environments (VEs) that are spatially larger than the available physical tracked space.In this work we present a novel technique for redirected walking in VR based on the psychological phenomenon of inattentional blindness. Based on the user's visual fixation points we divide the user's view into zones. Spatially-varying rotations are applied according to the zone's importance and are rendered using foveated rendering. Our technique is real-time and applicable to small and large physical spaces. Furthermore, the proposed technique does not require the use of stimulated saccades but rather takes advantage of naturally occurring saccades and blinks for a complete refresh of the framebuffer. We performed extensive testing and present the analysis of the results of three user studies conducted for the evaluation.

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Section: Redirection and Vrmentioning

confidence: 99%

Inattentional Blindness for Redirected Walking Using Dynamic Foveated Rendering

Joshi

Poullis

2020

IEEE Access

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“…In relation to motion platforms, studies are also being conducted to realistically represent user behavior in a dynamic virtual space. Research has focused on representing a virtual character's behavior in a restricted space by detecting the user's walking motion using walking in place [8,21], or on allowing users to walk indefinitely inside a restricted space by computing the walking motion by applying distortions to a projected video [4]. When structuring immersive VRs with multiple users, interactions between the users must also be taken into consideration, in addition to adapting preceding studies on user interface, haptic systems, and motion platforms for multiple users.…”

Section: Immersive Virtual Realitymentioning

confidence: 99%

“…), which provide realistic spatial and temporal experiences, by stimulating the user's various senses inside a VR, as well as research on hardware technology (motion platforms, haptic systems, etc.) [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Related research topics include a study on producing audio effects by combining sound source clustering and hybrid audio rendering technologies [5], based on display devices that transfers three-dimensional visual information, which enhances the immersion inside a virtual space; studies conducted on enhancing immersion through user interfaces that enable the user to interact more directly and realistically with virtual environments through gaze and hand gestures [6,7]; and technological research conducted to offer an improved presence by combing haptic systems, which provide physical reactions as feedback. Moreover, studies are being conducted on portable walking simulators using walking in place [8] or algorithms [4,9], without the use of expensive equipment such as treadmills or motion capture devices, to realistically represent the experience of walking inside a vast and dynamic virtual space.…”

Section: Introductionmentioning

confidence: 99%

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A Study on the Presence of Immersive User Interface in Collaborative Virtual Environments Application

et al. 2019

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This study proposes a collaboration-based interaction as a new method for providing an improved presence and a satisfying experience to various head-mounted display (HMD) users utilized in immersive virtual reality (IVR), and analyzes the experiences (improved presence, satisfying enjoyment, and social interaction) of applying collaboration to user interfaces. The key objective of the proposed interaction is to provide an environment where HMD users are able to collaborate with each other, based on their differentiated roles and behaviors. To this end, a collaboration-based interaction structured in three parts was designed, including a synchronization procedure and a communication interface that enable users to swiftly execute common goals with precision, based on immersive interactions that allow users to directly exchange information and provide feedback with their hands and feet. Moreover, experimental VR applications were built to systematically analyze the improved presence, enjoyment, and social interaction experienced by users through collaboration. Finally, by conducting a survey on the participants of the experiment, this study confirmed that the proposed interface indeed provided users with an improved presence and a satisfying experience, based on collaboration.

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“…In addition, to express infinite walking in a limited indoor space, studies were carried out on smooth assembled mapping [11] and a walk-in-place detection-based simulator [12]. Moreover, at present, methods have been developed to express the natural walking of multiple users in the same space [13].…”

Section: Immersive Vrmentioning

confidence: 99%

Maze Terrain Authoring System in Immersive Virtual Reality for New Visual Realism

Kim

2019

Symmetry

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This paper proposes a maze terrain authoring system with which a user can automatically calculate various and complex maze patterns to compose maze terrains in an easier and more intuitive structure. Using the maze terrain information calculated by using the proposed authoring system, a 3D maze terrain is generated quickly and effectively, and through this, the user’s visual realism in an immersive virtual reality is increased to provide a new presence. The proposed maze terrain authoring system consists of three core functions: a function that automatically generates a grid maze of various sizes and patterns based on a maze generation algorithm; a function that calculates a circular maze in an intuitive structure; and a function that transforms a sketch-based maze by using an image-processing algorithm. Through the authoring system consisting of these functions, various maze terrains from uniform mazes to irregular mazes can be generated effectively. This study produces maze terrains of various concepts directly by using maze information calculated through the authoring system. In addition, through experiments, this study analyzes the efficiency in an immersive virtual reality and the presence through visual realism. In this process, the suitability of the authoring system is also analyzed in combination with a survey.

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Smooth assembled mappings for large-scale real walking

Cited by 60 publications

References 24 publications

Inattentional Blindness for Redirected Walking Using Dynamic Foveated Rendering

Inattentional Blindness for Redirected Walking Using Dynamic Foveated Rendering

A Study on the Presence of Immersive User Interface in Collaborative Virtual Environments Application

Maze Terrain Authoring System in Immersive Virtual Reality for New Visual Realism

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