Acoustic Strength-based Motion Tracking

Ge，Linfei1,2; Zhang，Qian2; Zhang，Jin1; Huang，Qianyi1

2020-12-17

10.1145/3432215

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies   影响因子和分区

2474-9567

Accurate device motion tracking enables many applications like Virtual Reality (VR) and Augmented Reality (AR). To make these applications available in people's daily life, low-cost acoustic-based motion tracking methods are proposed. However, existing acoustic-based methods are all based on distance estimation these methods measure the distance between a speaker and a microphone. With a speaker or microphone array, it can get multiple estimated distances and further achieve multidimensional motion tracking the weakness of distance-based motion tracking methods is that they need large array size to get accurate results. Some systems even require an array larger than 1 m. This weakness limits the adoption of existing solutions in a single device like a smart speaker. To solve this problem, we propose Acoustic Strength-based Angle Tracking (ASAT) System and further implement a motion tracking system based on ASAT. ASAT achieves angle tracking by creating a periodically changing sound field. A device with a microphone will sense the periodically changing sound strength in the sound field. When the device moves, the period of received sound strength will change. Thus we can derive the angle change and achieve angle tracking the ASAT-based system can obtain the localization accuracy as 5 cm when the distance between the speaker and the microphone is in the range of 3 m.

angle tracking localization sound field strength

EI

英语

第一

20205209696402

Motion analysis ; Virtual reality ; Acoustic field measurement ; Augmented reality ; Microphones

Computer Software, Data Handling and Applications:723 ; Data Processing and Image Processing:723.2 ; Acoustics, Noise. Sound:751 ; Acoustic Properties of Materials:751.2 ; Acoustic Devices:752.1 ; Acoustic Variables Measurements:941.2

2-s2.0-85098222712

Scopus

1.Department of Computer Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.Department of Computer Science and Engineering,Hong Kong University of Science and Technology,Hong Kong

Ge，Linfei,Zhang，Qian,Zhang，Jin,et al. Acoustic Strength-based Motion Tracking[J]. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies,2020,4(4).

Ge，Linfei,Zhang，Qian,Zhang，Jin,&Huang，Qianyi.(2020).Acoustic Strength-based Motion Tracking.Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies,4(4).

Ge，Linfei,et al."Acoustic Strength-based Motion Tracking".Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 4.4(2020).