RetroSphere: Enabling Low-power and Affordable 3D Input for Lightweight Augmented Reality Devices-Reference-Cited by-同舟云学术

RetroSphere: Enabling Low-power and Affordable 3D Input for Lightweight Augmented Reality Devices

Published:2024-07-30 Issue:2 Volume:28 Page:31-37
ISSN:2375-0529
Container-title:GetMobile: Mobile Computing and Communications
language:en
Short-container-title:GetMobile: Mobile Comp. and Comm.

Author:

Narayanan Balaji Ananta¹,Kimber Clayton²,Du Ruofei³,Kim David⁴

Affiliation:

1. Nokia Bell Labs, Singapore

2. Google, Ireland

3. Google, San Francisco, CA, USA

4. Google Zurich, Switzerland

Abstract

RetroSphere introduces a self-contained 6-degree-of-freedom (6DoF) controller tracker, designed for seamless integration with resourceconstrained Augmented Reality (AR) devices such as AR glasses and smartphones. This system employs a tracking mechanism using one to three retro-reflective spheres on a passive controller, thus eliminating the need for any onboard electronics or batteries. Detection is enabled by a stereo pair of mass-produced infrared blob trackers, each outfitted with infrared LED emitters. The system utilizes a lightweight stereo depth-estimation algorithm on an Arduino-compatible ESP32 microcontroller to achieve 6DoF tracking. RetroSphere achieves a tracking accuracy of approximately 96.5%, with positional errors as low as 3.5 cm across a tracking range of 100 cm, while maintaining a power consumption of just about 400 mW. The complete hardware and firmware details for RetroSphere are available as open source on GitHub: https://github.com/AnantaBalaji/RetroSphere

Publisher

Association for Computing Machinery (ACM)

Link

https://dl.acm.org/doi/pdf/10.1145/3686138.3686148

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