EQ-Radio demonstrates that wireless RF reflections can extract individual heartbeats with millisecond accuracy to recognize human emotions on par with on-body ECG monitors.
May enable contactless cardiac monitoring; leaves open prospective clinical validation before practice adoption.
This paper demonstrates a new technology that can infer a person's emotions from RF signals reflected off his body. EQ-Radio transmits an RF signal and analyzes its reflections off a person's body to recognize his emotional state (happy, sad, etc.). The key enabler underlying EQ-Radio is a new algorithm for extracting the individual heartbeats from the wireless signal at an accuracy comparable to on-body ECG monitors. The resulting beats are then used to compute emotion-dependent features which feed a machine-learning emotion classifier. We describe the design and implementation of EQ-Radio, and demonstrate through a user study that its emotion recognition accuracy is on par with state-of-the-art emotion recognition systems that require a person to be hooked to an ECG monitor.
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Zhao et al. (2018) studied this question.
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