2026 · journal
ForceCtrl: Hand-Raycasting with User-Defined Pinch Force for Control-Display Gain Application
IEEE Transactions on Visualization and Computer GraphicsTop 10%
IEEE TVCG — a top 10% journal in visualization and computer graphics.
Abstract
We present ForceCtrl, a novel 3D hand raycasting technique that enhances pointing precision based on control-display (CD) gain controlled with user-defined pinch force. We introduce a target-agnostic approach for refining raycasting precision, overcoming limitations in human motor accuracy. User-defined pinch force, detected with surface electromyography (sEMG), enables users to easily activate or deactivate CD gain during interaction. We propose three CD gain strategies and compare them through target selection and placement tasks. Our system reduces selection errors, placement jitters, and user workload, especially for distant targets in high-difficulty tasks. These results highlight the effectiveness of applying CD gain to hand raycasting and demonstrate the potential of user-defined pinch force as a robust input modality for precise hand interaction in AR/VR.
Citation
@article{oh2026forcectrl,
title = {ForceCtrl: Hand-Raycasting with User-Defined Pinch Force for Control-Display Gain Application},
author = {Seo Young Oh and Junghoon Seo and Juyoung Lee and Boram Yoon and Sang Ho Yoon and Woontack Woo},
journal = {IEEE Transactions on Visualization and Computer Graphics},
year = {2026},
doi = {10.1109/TVCG.2025.3647547},
url = {https://doi.org/10.1109/TVCG.2025.3647547}
}