Single-Frequency Ultrasound-Based Respiration Rate Estimation with Smartphones

<table class="fixed-width table-group" id="tab5"><tr><td><table class="table"><colgroup><col style="width:9.02em"/><col style="width:13.04em"/></colgroup><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Scenarios </td><td class="align_center"> Mean estimation error (bpm)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Office</td><td class="align_center"> 0.49</td></tr><tr><td class="align_left">Dormitory</td><td class="align_center"> 0.44</td></tr><tr><td class="align_left">Library</td><td class="align_center"> 0.31</td></tr><tr><td class="align_left">Office (with music)</td><td class="align_center"> 0.78</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Estimation errors in different testing scenarios.</div>

Computational and Mathematical Methods in Medicine

tab5

Table 5

Table 5: Single-Frequency Ultrasound-Based Respiration Rate Estimation with Smartphones 