## 6 Conclusions
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Camera Rotation and Contrast Ratio** & **Number of Tests** & **Average Rate** & **Dispersion** \\ \hline NO\_R, \(\text{NO\_C}\) & 1005 & 0.603 & 0.237 \\ NO\_R, \(\text{INC\_C}\) & 208 & 0.625 & 0.253 \\ INC\_R, \(\text{NO\_C}\) & 471 & 0.638 & 0.248 \\ INC\_R, \(\text{INC\_C}\) & 1025 & 0.640 & 0.246 \\ \hline \hline \end{tabular}
\end{table} 
Table 13: Numerical results of the users regarding the camera rotation and device used. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Device Used** & **Number of Tests** & **Average Rate** & **Dispersion** \\ \hline Desktop display & 2160 & 0.620 & 0.242 \\ Gear VR & 549 & 0.643 & 0.252 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Numerical results of the users regarding the camera type and camera rotation. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Camera Rotation and Device Used** & **Number of Tests** & **Average Rate** & **Dispersion** \\ \hline NO\_R, \(\text{NO\_C}\) & 1062 & 0.607 & 0.238 \\ NO\_R, \(\text{Gear VR}\) & 151 & 0.603 & 0.251 \\ INC\_R, \(\text{Desktop display}\) & 1098 & 0.632 & 0.245 \\ INC\_R, \(\text{Gear VR}\) & 398 & 0.659 & 0.251 \\ \hline \hline \end{tabular}
\end{table} 
Table 14: Numerical results of the users regarding the contrast ratio and device used. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Camera Type, Rotation and Device Used** & **Number of Tests** & **Average Rate** & **Dispersion** \\ \hline Orthographic, NO\_R, desktop display & 585 & 0.583 & 0.232 \\ Orthographic, NO\_C, Gear VR & 111 & 0.595 & 0.251 \\ Orthographic, INC\_C, desktop display & 480 & 0.623 & 0.242 \\ Orthographic, INC\_C, Gear VR & 115 & 0.657 & 0.251 \\ Perspective, NO\_C, desktop display & 598 & 0.639 & 0.243 \\ Perspective, NO\_C, Gear VR & 182 & 0.645 & 0.247 \\ Perspective, INC\_C, desktop display & 497 & 0.637 & 0.248 \\ Perspective, INC\_C, Gear VR & 141 & 0.668 & 0.257 \\ \hline \hline \end{tabular}
\end{table} 
Table 17: Numerical results of the users regarding the camera type, contrast ratio and device used. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Camera Type, Rotation and Contrast Ratio** & **Number of Tests** & **Average Rate** & **Dispersion** \\ \hline Orthographic, NO\_R, NO\_C & 511 & 0.579 & 0.234 \\ Orthographic, NO\_R, INC\_C & 100 & 0.606 & 0.235 \\ Orthographic, INC\_R, NO\_C & 185 & 0.603 & 0.235 \\ Orthographic, INC\_R, INC\_C & 495 & 0.635 & 0.246 \\ Perspective, NO\_R, NO\_C & 494 & 0.628 & 0.238 \\ Perspective, NO\_R, INC\_C & 108 & 0.643 & 0.268 \\ Perspective, INC\_R, NO\_C & 286 & 0.661 & 0.254 \\ Perspective, INC\_R, INC\_C & 530 & 0.644 & 0.247 \\ \hline \hline \end{tabular}
\end{table} 
Table 15: Numerical results of the users regarding the camera type, rotation and contrast ratio. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Camera Type, Contrast Ratio and Device Used** & **Number of Tests** & **Average Rate** & **Dispersion** \\ \hline Orthographic, NO\_C, desktop display & 585 & 0.583 & 0.232 \\ Orthographic, NO\_C, Gear VR & 111 & 0.595 & 0.251 \\ Orthographic, INC\_C, desktop display & 480 & 0.623 & 0.242 \\ Orthographic, INC\_C, Gear VR & 115 & 0.657 & 0.251 \\ Perspective, NO\_C, desktop display & 598 & 0.639 & 0.243 \\ Perspective, NO\_C, Gear VR & 182 & 0.645 & 0.247 \\ Perspective, INC\_C, Gear display & 497 & 0.637 & 0.248 \\ Perspective, INC\_C, Gear VR & 141 & 0.668 & 0.257 \\ \hline \hline \end{tabular}
\end{table} 
Table 18: Numerical results of the users regarding the camera rotation, contrast ratio and device used.