Video-based operational modal analysis of slender mechanical structures with neutral axis estimation via barycenter calculation

Recent advances in vibrations, noise, and their use for machine monitoring

Open Access

Fig. 19

Validation of the relationship between the standard deviation of the noise added to the images and that which disturbs the position of the beam’s barycenter. Left plot: estimated value of the standard deviation of the noise in the barycenter position. Right plot: $ρ = \frac{{\hat{σ}}_{n}}{σ_{n}}$ as a function of the noise standard deviation σ_b.

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