Dsouza, Elvis; Chetty, Kevin; Vishwakarma, Shelly; (2024) RF-Pointer: a Novel Approach to Radio-Frequency Driven Pointer Technology for HCI. In: Proceedings of the IEEE Radar Conference 2024. (pp. pp. 1-6). Institute of Electrical and Electronics Engineers (IEEE) (In press).

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Abstract

This paper introduces the ”RF-Pointer,” an innovative radio-frequency-based interaction framework designed for real-time tracking and projection of hand movements in virtual spaces. The system can provide a hands-free and distinctive interaction experience suitable for emerging domains like virtual reality and augmented reality. In this study, we delve into the architectural and operational dynamics of the RF-Pointer, utilizing a prototype equipped with a 77 GHz radar sensor. Initial tests reveal an average error of 2.5 cm in estimating the pointer’s location. To further illustrate the efficacy of the proposed architecture, we conduct a qualitative comparison with ground truth pointer location data, presenting the results in the form of tracked trajectories corresponding to both ground truth and the RF-Pointer estimated trajectories. The tracking results demonstrate that RF-Pointer trajectories closely align with ground truth trajectories. Consequently, these findings underscore the potential for improved accuracy through expanded data training, positioning the RF-Pointer as a significant advancement with the capability to transform interactive technology

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