Recognition of Nutrition Intake Using Time-Frequency Decomposition in a Wearable Necklace Using a Piezoelectric Sensor

@article{Alshurafa2015RecognitionON,
  title={Recognition of Nutrition Intake Using Time-Frequency Decomposition in a Wearable Necklace Using a Piezoelectric Sensor},
  author={Nabil Alshurafa and Haik Kalantarian and Mohammad Pourhomayoun and Jason J. Liu and Shruti Sarin and Behnam Shahbazi and Majid Sarrafzadeh},
  journal={IEEE Sensors Journal},
  year={2015},
  volume={15},
  pages={3909-3916}
}
Food intake levels, hydration, ingestion rate, and dietary choices are all factors known to impact the risk of obesity. This paper presents a novel wearable system in the form of a necklace, which aggregates data from an embedded piezoelectric sensor capable of detecting skin motion in the lower trachea during ingestion. The skin motion produces an output voltage with varying frequencies over time. As a result, we propose an algorithm based on time-frequency decomposition, spectrogram analysis… CONTINUE READING
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