Figure 4
From: Comparison of three full-field optical measurement techniques applied to vibration analysis

(a) Photograph of the deflectometry setup, (b) illustration of deflectometry principle, (c) diagram of deflectometry processing.
From: Comparison of three full-field optical measurement techniques applied to vibration analysis

(a) Photograph of the deflectometry setup, (b) illustration of deflectometry principle, (c) diagram of deflectometry processing.