Multiple perspectives integration for virtual reality-aided assemblability assessment in narrow assembly spaces

Abstract

Virtual reality (VR) has been proved as a promising tool for industrial design, but the traditional VR interface of first-person perspective (1PP) is not efficient to support assemblability assessment in narrow assembly spaces. In this paper, we proposed the multi-perspectives interface (MPI) which integrates the 1PP and the third-person perspective (3PP) using the handheld world-in-miniature (WIM). The MPI allows users to simulate the assembly operations in a natural manner similar to 1PP, while providing users with an overview of the assembly status through the WIM to assess the assemblability with superior spatial awareness. Two studies were conducted to test the performance of the proposed MPI. The first study tested user’s interaction performance in MPI using a common interaction task, which reveals stronger spatial awareness in MPI than in 1PP without the cost of losing natural interaction. Based on the results of the first study, the second study tested the performance, usability, and workload of MPI in an assemblability assessment task. The results show the advantages of MPI in the reachability evaluation in the narrow spaces. The main contribution of this paper is improving the interface and user-interface interaction in VR-aided assembly assessment system to improve user’s interaction performance and assessment ability in narrow assembly spaces.

A blind area information perception and AR assembly guidance method based on RGBD data for dynamic environments and user study

“…This method, while not needing additional equipment in the blind area, requires employees to wear gloves and results in inaccurate measurements because the hand position is extrapolated from the shoulder position. Wang et al [20] proposed a multi-view interface that integrates first-person and third-person views to address the assessment of assemblyability in confined spaces, allowing the user to simulate assembly operations in a natural way in the first-person view while assessing assemblyability holistically in a "world in the palm of your hand" in the third-person view. Feng et al [21] developed a blind assembly assist system based on LeapMotion that enhanced assembly efficiency and lowered cognitive load by making the part area near the eye gaze point and hand transparent, allowing the user to see the constructed parts on the opposite side.…”

Interaction and Navigation in Immersive Virtual Heritage Environments for the First and Third Person Perspective

“…[2] compared the impact and the potentialities enabled via the integration of the third-person perspective in immersive virtual environments. Authors in [3] proposed the multi-perspectives interface which integrates the first-person and the third-person perspective in VR industry application. In [4], authors investigated whether playing in the first-person perspective is more immersive than the third-person perspective in digital games.…”

“…However, it may be that users prefer the firstperson perspective, because of the greater challenge it presents in the virtual world of the game. In [3], a multi-perspective interface (MPI) integrating first and third-person perspective was presented for narrow assembly spaces in industrial design. Authors showed that the MPI allows users to improve their interaction performance and assessment ability in narrow assembly spaces.…”