Evaluation framework for BIM-based VR applications in design phase

Kim, Jung In; Li, Sining; Chen, Xingbin; Keung, Calvin C. W.; Suh, Minjae; Kim, Tae Wan

doi:10.1093/jcde/qwab022

Cited by 24 publications

(24 citation statements)

References 42 publications

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“…In the delta-blendshape approach, the facial shape is given by a combination of the delta-blendshapes as defined in (1).…”

Section: Selective Expression Manipulationmentioning

confidence: 99%

“…3 D human characters, in particular, 3D faces, are essential elements in virtual and augmented realities [1], [2]. Blendshape, a linear facial expression model, has been widely used in various applications to generate realistic 3D human faces such as face recognition [3], [4], face tracking [5]- [7], performance-based facial capture [8], [9], human reconstruction [10]- [13], and facial retargeting [14], [15] thanks to its simplicity and expressiveness.…”

Section: Introductionmentioning

confidence: 99%

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A Selective Expression Manipulation With Parametric 3D Facial Model

et al. 2023

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This paper proposes a novel method to represent expressive 3D facial shapes called the Selective Expression Manipulation (SEM) by fitting the expression coefficients of delta-blendshapes, which is the standard parametric facial model widely used in industries. SEM focuses on preserving blendshape semantics to characterize the facial shapes since the facial shape obtained by minimizing the distance to sparse facial landmarks might fail to signify a facial expression from a human being's perspective. Assuming each delta-blendshape corresponds to a facial movement with semantic meaning, SEM finds a series of facial motions required to compose the target facial expression. In addition, SEM sequentially determines a sufficient number of expressions and coefficients closely resembling the target facial movements by introducing similarities to quantify the directional correlation of facial motions between a target and a blendshape, excluding redundant expressions in terms of motions from the neutral shape. As a result, far fewer inter-correlated expressions that significantly increase the target correlation can be obtained. Furthermore, SEM exhibits substantial improvement in accuracy, correlation, semantics, and stability in experiments over previous facial fitting schemes and state-of-the-art methods. It is demonstrated that SEM enables accurate and realistic 3D facial shape generation by semantically manipulating expression deltablendshapes.

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“…In the delta-blendshape approach, the facial shape is given by a combination of the delta-blendshapes as defined in (1).…”

Section: Selective Expression Manipulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Selective Expression Manipulation With Parametric 3D Facial Model

et al. 2023

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“…In recent years, BIM and VR technologies have been gradually popularized. For example, Lin et al (2018) propose BIM combined with VR for hospital building design; Kim et al (2021) propose BIM combined with VR for the design and process evaluation of educational buildings; Scorpio et al (2022) propose BIM combined with VR for interior lighting design of office space. The current research results focus on design, communication, and process evaluation.…”

Section: 20 Characteristics Of Complex Commercial Building Projectsmentioning

confidence: 99%

“…With the assistance of VR the BIM model is able to update real-time information and achieve a more intuitive and convenient real-time interaction through information visualization. This can then effectively reduce the gap in spatial cognition, improve project understandings and help in the design communication efficiency (Alizadehsalehi et al, 2020;Carrasco & Chen, 2021;Heaton et al, 2019;Kim et al, 2021;Sidani et al, 2021;Spaeth & Khali, 2018;Xu et al, 2021).…”

Section: 10 Introductionmentioning

confidence: 99%

How Much Can VR Improve Spatial Experience? - A Case Study with a Commercial Building Project

Juan

Chi²,

Zhang³

2022

INTREST

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With the development of Industry 4.0 and the impact of the COVID-19 epidemic, the global construction industry has undergone a rapid digital transformation, pushing the development of building information modeling (BIM), virtual reality (VR), augmented reality (AR) and mixed reality (MR) technologies towards greater maturity. However, from the perspective of building developers and end users, does VR technology have any benefit for complex building projects? What are users' acceptance and evaluation on VR emerging technology? After constructing a VR simulation navigation system for an actual commercial building project, this study investigated and compared the differences between using the VR system and the traditional navigation system in the four dimensions of the technology acceptance model. The results showed that the subjects generally believed that the VR system has significant benefits in terms of usefulness, users’ attitude, and users’ intention, however, there is still room for improvement in the perceived ease of use. Moreover, feedback from developers supported the benefits of the VR technology validated the system effectiveness. Hence, VR and BIM technologies are recommended to be effectively integrated, in order to enhance the integrity of industrial applications and establish a new design communication and collaboration model for the architecture, engineering, construction, and facility management industry.

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“…[6][7][8]. It can also help the construction industry improve safety planning, on-site communication, constructability, and design review meetings [9][10][11]. Furthermore, VR technology has emerged recently and revolutionized multiple sectors.…”

Section: Introductionmentioning

confidence: 99%

Impact of Virtual Reality-Based Design Review System on User’s Performance and Cognitive Behavior for Building Design Review Tasks

et al. 2022

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Virtual reality (VR) can potentially enhance various design and construction assessment intensive tasks, such as construction design and review. However, it may lead to cognitive overload, adversely affecting the participants’ performance. It is critical to understand the effects of VR cognitive behavior for implementing VR technology in the construction industry. The principal objective of this study was to investigate the participants’ cognitive load (CL), task performance (TP), and situational awareness (SA) in the VR environment for the evaluation of building design review tasks. Participants were asked to review the design task based on their memory knowledge and understanding in one of the three environments: paper-based, monitor-based, and immersive virtual environment. Participants’ CL was measured using the National Aeronautics and Space Administration Task Load Index (NASA TLX), TP was evaluated on completion time and the number of errors correctly detected, and situational awareness (SA) was assessed using the Situational Awareness and Review Technique (SART). The statistical results show a high CL and better performance in the immersive virtual environment. These findings can contribute to a better understanding of cognitive process characteristics and capabilities for design review activities in the VR environment.

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Evaluation framework for BIM-based VR applications in design phase

Cited by 24 publications

References 42 publications

A Selective Expression Manipulation With Parametric 3D Facial Model

A Selective Expression Manipulation With Parametric 3D Facial Model

How Much Can VR Improve Spatial Experience? - A Case Study with a Commercial Building Project

Impact of Virtual Reality-Based Design Review System on User’s Performance and Cognitive Behavior for Building Design Review Tasks

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