## 4 Bibliometric Analysis
### Influential journals, Authors, and Countries
#### 4.2.1 The Most Productive Journals
The sixth-ranked journal, _IEEE Access_, has the same problem, with 13 total publications, but only 475 total citations. It is also interesting to note that the fourth-ranked journal, _Journal of Computing in Civil Engineering_, has an impact factor of 0 for the last two years, but a 5-year impact factor of 60.5. Other journals have fewer than 10 publications, and the number of citations is generally very low, indicating that researchers in the field of vision-based road crack detection have not paid much attention to these journals. To understand trends in citations and impact, the authors were interested in journals with the lowest number of publications but high citation rates, so the authors searched the dataset for the existence of such journals. The authors found journals such as _EURASIP \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Journal Name**} & **Total** & **Total** & **Average** & **Impact** & **5-Year** & \multirow{2}{*}{**Publisher**} & \multirow{2}{*}{**H-Index**} \\  & **Publications** & **Citations** & **Citations** & **Factor** & & **Factor** & \\ \hline IEEE Transactions on & & & & & & & \\ Intelligent & 21 & 1817 & 21.36 & 21.47 & 62.21 & \begin{tabular}{c} Institute of \\ Electrical and \\ Electronics \\ \end{tabular} & 13 \\ Transportation & 21 & 1817 & 21.36 & 21.47 & 62.21 & \begin{tabular}{c} Institute of \\ Electrical and \\ Electronics \\ \end{tabular} & 13 \\ Systems & & & & & & & \\ \hline Automation in & & & & & & \\ Construction & 19 & 1138 & 24.33 & 32.27 & 49.41 & Elsevier B.V. & 16 \\ \hline International Journal & & & & & & \\ of Pavement & 16 & 230 & 7.24 & 13.67 & 14.38 & \begin{tabular}{c} Taylor and \\ Francis Ltd. \\ \end{tabular} & 7 \\ Engineering & & & & & & \\ \hline Journal of Computing & 15 & 1095 & 12.43 & 0.00 & 60.50 & \begin{tabular}{c} American \\ Society of Civil \\ Engineers \\ \end{tabular} & 14 \\ in Civil Engineering & & & & & & Engineers \\ \hline Construction and & & & & & & \\ Building Materials & 13 & 1188 & 18.06 & 4.25 & 39.82 & Elsevier Ltd. & 8 \\ \hline IEEE Access & 13 & 475 & 13.11 & 1.00 & 30.25 & \begin{tabular}{c} Institute of \\ Electrical and \\ Electronics \\ \end{tabular} & 10 \\ \hline \begin{tabular}{c} Computer-Aided Civil \\ and Infrastructure \\ Engineering \\ \end{tabular} & 10 & 1673 & 29.58 & 9.75 & 104.29 & \begin{tabular}{c} Blackwell \\ Publishing Inc. \\ \end{tabular} & 7 \\ \hline \
\begin{tabular}{c} Applied Sciences \\ (Switzerland) \\ \end{tabular} & 9 & 77 & 4.09 & 5.71 & 8.56 & MDPI AG & 4 \\ \hline Sensors & 8 & 170 & 10.85 & 20.67 & 21.25 & MDPI & 5 \\ \hline
\begin{tabular}{c} Journal of \\ Transportation \\ Engineering Part B: \\ Pavements \\ \end{tabular} & 7 & 52 & 2.53 & 4.00 & 4.80 & ASCE & 5 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Summary of the most productive journals. _Journal on Image and Video Processing_ (1 paper, 117 citations), _IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing_ (1 paper, 114 citations), _Image and Vision Computing_ (1 paper, 108 citations), and _Structural Control and Health Monitoring_ (2 papers, 175 citations). To understand the historical development of the top journals in terms of paper publication and citation, the authors summarize the information in Table 4. Table 4 shows that all journals started to publish papers on image-based road crack detection around 2020. Before that, from 2013 to 2019, the number of papers published by these journals did not exceed 10 per year. However, there are still several journals with very high citation counts during these years, such as _IEEE Transactions on Intelligent Transportation Systems_ in 2013, _IEEE Transactions on Intelligent Transportation Systems_ in 2016, _Construction and Building Materials_ in 2017, and _Computer-Aided Civil and Infrastructure_ in 2017. _Computer-Aided Civil and Infrastructure Engineering_ in 2017 and _Computer-Aided Civil and Infrastructure Engineering_ in 2019 had more than 300 citations each.