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EchoGuide: Active Acoustic Guidance for LLM-Based Eating Event Analysis from Egocentric Videos
Vineet Parikh, Saif Mahmud, Devansh Agarwal +3
Self-recording eating behaviors is a step towards a healthy lifestyle recommended by many health professionals. However, the current practice of manually recording eating activitie…
SonicID: User Identification on Smart Glasses with Acoustic Sensing
Ke Li, Devansh Agarwal, Ruidong Zhang +6
Smart glasses have become more prevalent as they provide an increasing number of applications for users. They store various types of private information or can access it via connec…
MunchSonic: Tracking Fine-grained Dietary Actions through Active Acoustic Sensing on Eyeglasses
Saif Mahmud, Devansh Agarwal, Ashwin Ajit +4
We introduce MunchSonic, an AI-powered active acoustic sensing system integrated into eyeglasses to track fine-grained dietary actions. MunchSonic emits inaudible ultrasonic waves…
ActSonic: Recognizing Everyday Activities from Inaudible Acoustic Wave Around the Body
Saif Mahmud, Vineet Parikh, Qikang Liang +7
We present ActSonic, an intelligent, low-power active acoustic sensing system integrated into eyeglasses that can recognize 27 different everyday activities (e.g., eating, drinking…
Ring-a-Pose: A Ring for Continuous Hand Pose Tracking
Tianhong Catherine Yu, Guilin Hu, Ruidong Zhang +9
We present Ring-a-Pose, a single untethered ring that tracks continuous 3D hand poses. Located in the center of the hand, the ring emits an inaudible acoustic signal that each hand…
EchoWrist: Continuous Hand Pose Tracking and Hand-Object Interaction Recognition Using Low-Power Active Acoustic Sensing On a Wristband
Chi-Jung Lee, Ruidong Zhang, Devansh Agarwal +10
Our hands serve as a fundamental means of interaction with the world around us. Therefore, understanding hand poses and interaction context is critical for human-computer interacti…