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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: Proc ACM Interact Mob Wearable Ubiquitous Technol. 2020 Jun;4(2):72. doi: 10.1145/3397313

Fig. 5.

Fig. 5.

Participant wearing the devices during the Free-Living Study. (A) Representative still image of the ground truth camera output showing the chin, hand, food, and utensil. (B) Participant wearing the necklace and Ground Truth camera. (C) All devices for Free-Living Study.