Research Article

Image-Based Framework for Concrete Surface Crack Monitoring and Quantification

Figure 13

Cropped images (  pixels) of concrete cracks at different times, from (a) to (c), denoted by , and . By synchronizing with the loading time, seconds, seconds, and seconds (these time stamps are different from the relative ones used in Figure 10.
215295.fig.0013a
(a)
215295.fig.0013b
(b)
215295.fig.0013c
(c)