Damage Detection in Bridge Structures through Compressed Sensing of Crowdsourced Smartphone Data

Figure 17

Variations of the damage detection results for all damage scenarios at different compression levels. (a) and (c) represent results from the commercial accelerometer, while (b) and (d) are from the smartphone accelerometer. (a) Damage at mid-span and quarter span (accelerometer). (b) Damage in mid-span and quarter-span (smartphone). (c) Change in supports (accelerometer). (d) Change in end support (smartphone).

(a)

(b)

(c)

(d)