Method and system for stress detection based on cardiovascular physiological signals

A system for detecting stress based on cardiovascular physiological signals, the system comprising:

• at least one processor;
• and
• at least one non-transitory computer-readable medium coupled to the at least one processor and storing one or more computer-executable instructions that, when executed by the at least one processor, cause the system to:
• obtain a plurality of signal segments based on a cardiovascular physiological signal, the plurality of signal segments being stationary, as determined by an augmented Dickey-Fuller (ADF) test;
• calculate a plurality of trends for the plurality of signal segments;
• obtain a detrended signal corresponding to the cardiovascular physiological signal based on the plurality of trends;
• extract a plurality of first heart rate variability (HRV) features based on the detrended signal;
• and
• obtain a stress detection result corresponding to the cardiovascular physiological signal based on the plurality of first HRV features.