2026

Context-Aware LLM AR Guidance From Context-Agnostic to Context-Aware: Multimodal Context Injection for LLM-Based AR Task Guidance

Investigates how real-time multimodal context improves LLM-based AR task guidance assistants. Develops a context injection framework that progressively incorporates task descriptions, procedural steps, real-time task progress, and hand action data into an LLM's prompt. Validated on the HoloAssist dataset; real-time hand action data provided the largest performance gains in accuracy, relevance, and consistency.

Collaborators: Mahya Qorbani

Immersive Gamified VR Training for Automotive Assembly

A gamified VR training system for automotive assembly workers combining high-fidelity simulation with interactive game mechanics. Features synchronized multimodal feedback (visual, auditory, haptic) via headset and controllers to study each sensory channel's role in skill acquisition and transfer. Optimized for wireless headsets (Meta Quest 3) with cloud-based analytics dashboards for progress tracking and longitudinal skill assessment. Demonstrated in the context of Kia's Door Module Assembly using a "Ghost Master" scaffold grounded in Cognitive Apprenticeship theory.

Collaborators: Steven Yoo, Pantea Habibi

2025

HoloLens 2 AR-Guided Precision Inspection

AR-guided psychomotor tasks using HoloLens 2 for precision inspection with 3D-printed parts and industrial gauges. Two-session study covering gauge selection, calibration, measurement of part features, and accept/reject decisions based on tolerances.

Collaborators: Steven Yoo

2024

AR-Based Adaptive Training Using Gaze and Expertise Modeling

Explores AR-based adaptive, personalized on-the-job training using eye tracking, computer vision, pupillometry, and egocentric video. Examines novice vs. expert differences in gaze behavior, visual attention, and pupil-size changes during AR-guided procedural tasks.

Collaborators: Steven Yoo

2023

AR & VR Training for Cold Spray and Robotic Painting

AR and VR training systems for cold spray additive manufacturing and robotic painting using Unity-based interactive guidance, multimodal data (gaze & hand tracking), and immersive simulations for psychomotor skill learning.

Collaborators: Steven Yoo