TY - GEN
T1 - Application of SSR for Bridge Deflection Measurement by Using of Digital Image Correlation
AU - Cai, Youfa
AU - Fu, Xing
AU - Li, Fei
AU - Li, Huiyong
AU - Zhang, Lulu
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - Being different from the displacement and strain measurements in a laboratory environment, the bridge deflection measurement by using of digital image correlation is very impressionable due to the changes of ambient light. The illumination disturbances can result in an increase of deflection measurement errors or unreliable results. In order to decrease the influence of illumination disturbances on the results, the images were preprocessed by Single Scale Retinex. The experiments showed Single Scale Retinex could effectively decrease the influence of illumination disturbances on bridge deflection measurement. In a laboratory environment, SSR could decrease the systematic errors by more than 50% and the random errors by 30%-60%. In a field environment, the inhibitory effect of SSR on the changes of ambient light was not as obvious as the indoor test. But, the accuracy of bridge deflection measurement in field could be improved by using SSR for preprocessing.
AB - Being different from the displacement and strain measurements in a laboratory environment, the bridge deflection measurement by using of digital image correlation is very impressionable due to the changes of ambient light. The illumination disturbances can result in an increase of deflection measurement errors or unreliable results. In order to decrease the influence of illumination disturbances on the results, the images were preprocessed by Single Scale Retinex. The experiments showed Single Scale Retinex could effectively decrease the influence of illumination disturbances on bridge deflection measurement. In a laboratory environment, SSR could decrease the systematic errors by more than 50% and the random errors by 30%-60%. In a field environment, the inhibitory effect of SSR on the changes of ambient light was not as obvious as the indoor test. But, the accuracy of bridge deflection measurement in field could be improved by using SSR for preprocessing.
KW - Single Scale Retinex (SSR)
KW - bridge deflection
KW - digital image correlation (DIC)
KW - illumination disturbances
UR - https://www.scopus.com/pages/publications/85084314852
U2 - 10.1109/ICIVC47709.2019.8980849
DO - 10.1109/ICIVC47709.2019.8980849
M3 - 会议稿件
AN - SCOPUS:85084314852
T3 - 2019 IEEE 4th International Conference on Image, Vision and Computing, ICIVC 2019
SP - 129
EP - 133
BT - 2019 IEEE 4th International Conference on Image, Vision and Computing, ICIVC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE International Conference on Image, Vision and Computing, ICIVC 2019
Y2 - 5 July 2019 through 7 July 2019
ER -