Table 1.
Compression Ratio (CR) and Percent Root-mean-square Difference (PRD%) of each data compression pipeline currently in the data compression toolbox for each of the wearable sensor biosignals: Electrocardiogram (ECG), photoplethysmography (PPG), accelerometry (ACC), electrodermal activity (EDA), and skin temperature (TEMP).
| ECG | PPG | ACC | EDA | TEMP | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CR | PRD% | CR | PRD% | CR | PRD% | CR | PRD% | CR | PRD% | |
| DDC + HE | 50.16 | 0.17% | 11.30 | 0.06% | 10.40 | 0.04% | 9.76 | 0.14% | 13.99 | 0.09% |
| SVD + HE | 50.16 | 0.38% | 9.22 | 0.49% | 8.63 | 0.02% | 9.75 | 0.14% | 11.32 | 7.08% |
| BD-WT + HE | 131.70 | 1.37% | 16.65 | 1.35% | 18.59 | 0.94% | 15.47 | 0.54% | 78.90 | 0.10% |
| DCT-DOST + HE | 46.32 | 4.18% | 23.03 | 9.37% | 23.75 | 8.49% | 19.64 | 7.88% | 48.82 | 10.69% |
| DCT-DOST + RLE | 9.81 | 4.18% | 3.30 | 9.37% | 3.34 | 8.49% | 3.19 | 7.88% | 8.88 | 10.69% |