## 3 Results
### Respiratory Rate Estimation Using CNN-Whole-Image
The Bland-Altman plots and the statistics for RR measurements based on our CNN-whole-image proposal are shown in Figure 6. This was obtained for the MCV strategy a MOD of 0.347 with limits of agreement of \(+1.8\) and \(-1.10\) corresponding to a bias of \(0.34\pm 1.45\) bpm with statistics PCC \(=0.977\), SCC \(=0.975\) and RMSE \(=0.805\) as shown in Table 5. For the MV strategy a MOD of 0.33 was obtained with limits of agreement of \(+2.43\) and \(-1.76\) corresponding to a bias of \(0.33\pm 2.1\) bpm and statistics PCC \(=0.956\), SCC \(=0.965\) and RMSE \(=1.1\). Finally, for the OV strategy, a MOD of \(-0.01\) was obtained with limits of agreement or \(+3.469\) and \(-3.496\) corresponding to a bias of \(-0.01\pm 3.468\) bpm and statistics SCC \(=0.836\), PCC \(=0.858\) and RMSE \(=1.74\). When the results are compared between the three strategies, with the use of the MCV strategy, the higher correlation (PCC \(=0.977\), SCC \(=0.975\)) is obtained, along with the smallest error (RMSE \(=0.805\)) and the least limits of agreement (\(+1.8\) and \(-1.10\)). Concerning the position of the subject, using the MCV strategy, a MOD of 0.157 was obtained for the Bland-Altman analysis and the statistics for the 'S' position, with limits of agreement of \(+0.899\) and \(-0.583\) corresponding to a bias of \(0.157\pm 0.742\) bpm with statistics SCC \(=0.910\), PCC \(=0.994\), RMSE \(=0.38\); for the 'LD' position a  
Figure 5: Tagged results obtained for the trial 1 of patient 7 in ‘LF’ position. MOD of 0.108 with limits of agreement of \(+0.957\) and \(-0.741\) corresponding to a bias of \(0.108\pm 0.84\) bpm with statistics \(\mathrm{SCC}=0.964\), \(\mathrm{PCC}=0.991\) and \(\mathrm{RMSE}=0.42\); for the 'LU' position a MOD of 0.620 with limits of agreement of \(+2.834\) and \(-1.592\) corresponding to a bias of \(0.620\pm 2.21\) bpm with statistics \(\mathrm{SCC}=0.91\), \(\mathrm{PCC}=0.98\) and \(\mathrm{RMSE}=1.19\) and for the 'F' position a MOD of 0.602 with limits of agreement of \(+2.407\) and \(-1.203\) corresponding to a bias of \(0.602\pm 1.8\) bpm and statistics \(\mathrm{SCC}=0.954\), \(\mathrm{PCC}=0.965\) and \(\mathrm{RMSE}=1.04\). The Bland-Altman plots and the statistics are shown in Figure 7. It is observed that the less RMSE, the less limits of agreements are obtained for the 'S' position (\(\mathrm{RMSE}=0.38\), \(+2.407\), \(-1.203\)) and the 'LD' position (\(\mathrm{RMSE}=0.42\), \(+2.407\), \(-1.203\)). \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**S** & **Pose** & **RR MCV** & **RR MV** & **RR OV** & **RR Reference** & **MCV** \% & **MV** \% & **OV** \% \\ \hline
1 & LU & 21.2 & 24.08 & 21.65 & 19 & 11.579 & 26.737 & 13.947 \\
1 & LF & 13.243 & 13.235 & 19.388 & 13 & 1.869 & 1.808 & 49.138 \\ \hline
2 & LD & 15.367 & 15.358 & 14.041 & 15 & 2.447 & 2.387 & 6.393 \\ \hline
3 & LD & 20.69 & 20.69 & 20.442 & 21 & 1.476 & 1.476 & 2.657 \\
3 & S & 17.024 & 17.045 & 16.092 & 17 & 0.141 & 0.265 & 5.341 \\ \hline
4 & LD & 17.387 & 17.459 & 16.422 & 17 & 2.276 & 2.700 & 3.400 \\
4 & LU & 13.664 & 13.699 & 13.623 & 14 & 2.400 & 2.150 & 2.693 \\
4 & LF & 18.859 & 17.811 & 17.067 & 18 & 4.772 & 1.050 & 5.183 \\
4 & S & 21.563 & 21.976 & 21.451 & 22 & 1.986 & 0.109 & 2.495 \\ \hline
5 & LD & 13.44 & 13.419 & 14.279 & 13 & 3.385 & 3.223 & 9.838 \\
5 & LU & 10.49 & 10.508 & 10.514 & 11 & 4.636 & 4.473 & 4.418 \\
5 & S & 14.086 & 14.055 & 14.063 & 14 & 0.614 & 0.393 & 0.450 \\ \hline
6 & LD & 18.912 & 18.728 & 18.761 & 19 & 0.463 & 1.432 & 1.258 \\
6 & LF & 20.432 & 18.905 & 13.969 & 18 & 13.511 & 5.028 & 22.394 \\ \hline
7 & LD & 12.911 & 12.911 & 12.05 & 13 & 0.685 & 0.685 & 7.308 \\
7 & LU & 14.251 & 13.195 & 13.579 & 13 & 9.623 & 1.500 & 4.454 \\
7 & LF & 15.634 & 16.311 & 15.376 & 16 & 2.288 & 1.944 & 3.900 \\
7 & S & 15.162 & 15.135 & 15.162 & 15 & 1.080 & 0.900 & 1.080 \\ \hline
8 & LD & 20.715 & 19.344 & 19.054 & 20 & 3.575 & 3.280 & 4.730 \\
8