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# Title : Interaction Design in Large Virtual Environments
# Date : 2024. 10. 10. (Thu.) 16:30
# Speaker : Prof. Jong-in Lee(Texas A&M University)
# Host : Prof. Kim, Pyojin
# Language : Korean
# ZOOM 회의링크 : https://us06web.zoom.us/j/8323662730?pwd=tPQqoecRhD9GisHTNYchvUHI9PdvXA.1&omn=87635656117
# PW : 2383
# Short bio:
Dr. Jong-in Lee is a Research Engineer at ProtoPie, where he focuses on the research and development of rapid prototyping tools. His work aims to facilitate the design of high-fidelity user interface prototypes within Extended Reality environments. He obtained his PhD in Interactive Arts and Technology from Simon Fraser University and holds a Master's degree in Culture Technology from the Korea Advanced Institute of Science and Technology (KAIST). He also earned Bachelor's degrees in Computer Science and Film, TV, and multimedia from Sung Kyun Kwan University in South Korea. His research intersects the realms of Human-Computer Interaction (HCI) and Augmented/Virtual/Extended Reality (AR/VR/XR), aiming to elevate user experience in spatial computing environments. His specialty is in 3D navigation techniques that facilitate efficient and accurate control of locomotion and support wayfinding in multiscale virtual environments (MVEs). His past research efforts include developing automatic distance control methods for teleportation-based locomotion techniques to improve navigation accuracy and efficiency in MVEs, as well as designing viewpoint transition techniques to enhance a user's spatial awareness in MVEs with nested structures.
# Abstract:
Viewpoint transitions, an automated animation showing the progress of how position and orientation change from an initial to a target viewpoint, have been shown to improve users' spatial orientation and help them build a cognitive map when they are navigating an unfamiliar virtual environment. Previous work has investigated transitions in single-scale virtual environments, focusing on trajectories and continuity. This presentation demonstrates the extension of the previous work with an in-depth investigation of transition techniques in MVEs. The author identified challenges in navigating MVEs with nested structures and assessed how different transition techniques affect spatial understanding and usability.
Through two user studies, the author investigated transition trajectories, interactive control of transition movement, and speed modulation in a nested MVE. The results of the user studies show that some types of viewpoint transitions enhance users' spatial awareness and confidence in their spatial orientation and reduce the need to revisit a target point of interest multiple times.