Feasibility Study of Earthquake-Induced Damage Assessment for Structures by Utilizing Images from Surveillance Cameras

Figure 10

The extracted first modal response of the first story and the estimated first natural frequency of the structure: (a, b) DS 1; (c, d) DS 2; (e, f) DS 3.

(a)

(b)

(c)

(d)

(e)

(f)