維持管理（点検技術）

[I-203] Damage detection method of bridge finger joints based on object detection and STFT of outside-car sound

*Takanori Imai, Di Su¹, Tsukasa Mizutani¹, Kai Xue¹ (1. The University of Tokyo, Graduate School of Engineering, Civil Engineering Faculty)

Keywords:Expansion Joints, Cantilever Finger Joints, Short-Term Fourier Transform, Damage Detection, Image Recognition, Object Detection