Structural Vibration Field Test using Optical Flow Analysis of a Video Sequence.

This paper illustrates the use of Optical Flow (OF) video processing to measure structural vibration. This fairly new application of the technique has been validated under laboratory conditions and is now applied to measurements outside of the laboratory. It is demonstrated that the method is capable of identifying the first three vibration natural frequencies of the structure being measured. Validation data is obtained from an accelerometer. [ABSTRACT FROM AUTHOR]