WalkieLokie: Relative Positioning for Augmented Reality Using a Dummy Acoustic Speaker
Wenchao Huang, Yan Xiong, Xiang-Yang Li, Yiqing Hu, Xufei Mao, Panlong, Yang

TL;DR
WalkieLokie is a novel relative positioning system for augmented reality that uses a dummy acoustic speaker and smart device displacement patterns to accurately determine position and direction.
Contribution
It introduces a new acoustic-based relative positioning method using a dummy speaker and displacement pattern analysis for AR applications.
Findings
Mean ranging error: 0.63m
Mean direction error: 2.46 degrees
Positioning error in shopping mall: 1.28m
Abstract
We propose and implement a novel relative positioning system, WalkieLokie, to enable more kinds of Augmented Reality applications, e.g., virtual shopping guide, virtual business card sharing. WalkieLokie calculates the distance and direction between an inquiring user and the corresponding target. It only requires a dummy speaker binding to the target and broadcasting inaudible acoustic signals. Then the user walking around can obtain the position using a smart device. The key insight is that when a user walks, the distance between the smart device and the speaker changes; and the pattern of displacement (variance of distance) corresponds to the relative position. We use a second-order phase locked loop to track the displacement and further estimate the position. To enhance the accuracy and robustness of our strategy, we propose a synchronization mechanism to synthesize all estimation…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsIndoor and Outdoor Localization Technologies · Speech and Audio Processing · Underwater Vehicles and Communication Systems
