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ViMag: A Visual Vibration Toolbox

Vision-based damage detection techinques can reduce sensor deployment costs while providing accurate, useful, and full-field readings of structural behaviour. Our work presents a video processing methodology based on STB-VMM implemented in a software toolbox that allows the processing of video data to obtain vibrational signatures of complex structures. Our tests have demonstrated that this technique enables the identification of very light structural damage in a controlled lab environament. This vision-based technique may not be as precise as other contact-based or laser methods, but on the other hand, it offers an easy to use, efective, full-field, tool for structural health monitoring at a fraction of the cost.

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