Motion Amplification/Video Vibration Vs’ Real Life ODS
In contrast, Video Vibration Software uses cameras to record the vibration in 2D and are limited by the recording resolution and framerate. For instance, using a common cellphone camera allows you to detect frequencies only up to 120 Hz (slow motion mode with iPhone). This video vibration technology becomes inherintly more expensive as motion based video vibration analysis such as those developed by others in the market is cost prohibitive and requires a dedicated PC for post processing.
In the case of cost prohibitive, specialized high-speed cameras you could get vibration spectra only up to 6,250 Hz (Phantom V2640 12,500 fps @ Full HD resolution). While this is useful to have a big picture of the behavior for a complete area, it lacks accuracy when analyzing more in-depth problems in your machine components. Moreover, when measuring with video vibration analysis, one must be very careful about the position and calibration of the camera to obtain accurate 2D data. (It is important to mention that is nearly impossible for actual single camera motion amplification techniques to accurately measure 3D displacement or 3D acceleration and they just provide data of a 2D projection, nor is the calibration NIST traceable).
Most real problems require 3D information or high sampling frequencies to get a proper diagnostic, and this is where video based Motion Amplification fails.
Motion Amplification is a trademark of RDI Technologies. ERBESSD INSTRUMENTS nor it’s products are in any way affiliated with RDI Technologies.