## 4 Discussion  
By analyzing the data from the various eye-tracking indicators of 92 subjects observing stimulus pictures in a VR environment, the experimental findings were determined as follows.  
(1) The subjects preferred to view the textual information and architectural form features in the representative pictures. The eye-tracking data proved that the line and surface combination style of the transliteration symbols agreed best with the subjects' visual perception and aesthetic preferences, conveying the image information more accurately; thus, it is more suitable for symbols.  
(2) The research result showed that the higher the cognitive correctness, the greater the significance. The overall significance ranking of the scenes was: S1 (81.10%) > S2 (64.57%) > S3 (49.57%). Based on the number of FCs and SCs, the subjects scanned the scenes extensively when searching for target information in S2 and S3, which indicated that the simpler the structure of the spatial environment, the higher was the visual saliency.  
Figure 8: S1\(-\)S3 before and after optimization.  
\begin{table}
\begin{tabular}{l c c c c c} \hline \hline \multirow{2}{*}{
\begin{tabular}{} \end{tabular} } & \multicolumn{5}{c}{**Average Value**} \\ \cline{2-6}  & **Images** & **Patterns** & **Words** & **Colors** & **Sculptures** \\ \cline{2-6}  & **N = 92** & **N = 92** & **N = 92** & **N = 92** & **N = 92** \\ \hline S1 & & & & & \\ AOI FC (\%) & 24.518 & 7.602 & 24.274 & 6.941 & 12.394 \\ AOI TFD (\%) & 24.384 & 8.744 & 24.150 & 6.463 & 13.897 \\ AOI FF (s) & 0.160 & 0.186 & 0.167 & 0.156 & 0.213 \\ AOI MFD (s) & 0.156 & 0.157 & 0.156 & 0.144 & 0.183 \\ \hline S2 & & & & & \\ AOI FC (\%) & 8.647 & 20.414 & 9.993 & 16.265 & 4.132 \\ AOI TFD (\%) & 8.723 & 19.100 & 11.737 & 15.010 & 4.790 \\ AOI FF (s) & 0.126 & 0.160 & 0.209 & 0.115 & 0.141 \\ AOI MFD (s) & 0.144 & 0.139 & 0.178 & 0.130 & 0.110 \\ \hline S3 & & & & & \\ AOI FC (\%) & 12.440 & 5.764 & 10.334 & 16.582 & 1.087 \\ AOI TFD (\%) & 11.914 & 7.029 & 9.857 & 16.123 & 1.169 \\ AOI FF (s) & 0.095 & 0.155 & 0.106 & 0.147 & 0.139 \\ AOI MFD (s) & 0.110 & 0.124 & 0.122 & 0.137 & 0.050 \\ \hline \hline \end{tabular}
\end{table}
Table 12: Comparison of Eye-Tracking Index Data for Each Type of Transcribed Element.  
(3) Comparing the number of FCs and SCs before and after optimization showed that subjects in the spatially optimized scenes had a more focused attention, a clearer observation focus, and made a greater visual effort. The significance of the transliteration elements of the three scenes in the Taizicheng railway station were as follows: S1: Images > Words > Sculptures > Patterns > Colors; S2: Patterns > Colors > Words > Images > Sculptures; and S3: Colors > Images > Words > Patterns > Sculptures.  
(4) In the subjective questionnaire, the respondents proved with their votes that having positive emotions, a higher comfort level, and a more focused attention in the VR environment ensured the quality of the experiment data. The indoor scenes were more significant, with five- to six-times higher ratings than before decoration. This indicated that the optimized layout of the scenes was more recognized and preferred by the subjects.