Summary statistics for computational time (IMAGE) National Research Council of Science & Technology Caption Under the identical computational environment, the execution time of Faster R-CNN was relatively greater than other methods (2 seconds). On the other hand, the execution times for the other methods take less than 0.05 seconds (<0.05 sec.). It should be noted that the execution time of Faster R-CNN does not include the training process (i.e., data generation and time for transfer learning of a pre-trained network). Taking less than 0.05 second is much lower than times for data-acquisition and Welch's method. Credit Korea Institute of Civil Engineering and Building Technology (KICT) Usage Restrictions The sources of photos and research results from KICT must be specified. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.