See Full Field Mode Shapes, Natural Frequencies, and Damping Ratios Using Any Camera
VIDEOMAGIC.io uses video of a vibrating structure and extracts high-spatial-resolution structural vibration and dynamics information to measure the dynamic response and analyze the health of civil, mechanical, and aerospace structures.
VIDEOMAGIC.io Helps Make Structural Analysis More Efficient and Automated.
Traditional modal analysis is expensive, slow, and intrusive, requiring costly hardware like wired accelerometers, cabling, or laser vibrometers, providing limited point coverage instead of full-field data and risking interference by altering the very dynamics being measured.
- Requires hours of manual tuning of many user input parameters
- Requires hours of analysis to investigate and separate closely spaced or overlapping vibration modes
- Some video-based approaches depend on special camera types, lighting, and frequency selection and tuning
Source Image: F/A-18 AAW Undergoes Ground Vibration Tests." NASA, 27 Sept. 2009.
Use Any Camera to Capture Structural Dynamics with the help of Phase-Based Motion Magnification.
Phased-based motion magnification performs full-field modal analysis from any camera video without speckle surface preparation by extracting pixel-level phases via multi-scale image processing to build a spatiotemporal motion matrix of structural vibrations.
- Enables fast, non-contact structural testing
- Works with any camera footage
- Requires no special patterns or high-contrast targets
- Captures pixel-level full-field vibration data
Complex Steerable Pyramids Provide Clean, Non-Aliasing Frequency Bands.
The complex steerable pyramid is applied on the frames of the video of a vibrating structure to extract the local pixel phases that encode local structural vibration, establishing a full-field spatiotemporal motion matrix.
- Non-aliasing feature cleanly separates each frequency band
- Detects localized motion at each point to build full-field motion map
- Multi-scale, captures motion at various detail level
- Extracts local amplitudes and phases for each pixel
Source Image: Berrios, I. (2024) An Introduction to Steerable Pyramid Decompositions.
Principal Component Analysis and AI Blind Source Separation Suppresses Noise.
After the complex steerable pyramid extracts pixel-level motion, principal component analysis identifies mode shapes and blind source separation isolates overlapping sources, producing modal coordinates that track each mode’s excitation over time.
- Noise Suppression
- Dramatic Data Compression
- Reveals Mode Shapes and Modal Coordinates
- Prepares Data for AI Blind Source Separation
AI Blind Source Separation of Overlapping and Closely Spaced Modes.
BSS autonomously unmixes overlapping vibration sources, isolating each structural mode and extracting resonant frequencies, damping ratios, and high-resolution mode shapes from video.
- Extracts dominant modes without prior knowledge of what modes exist
- Extracts dominant modes without prior knowledge of what modes exist
- Extract clean, independent vibration modes
- Improves accuracy of frequency identification, mode shape, and damping ratio
Motion Magnification of Vibration Motion Helps Detect Weakly Excited Modes, Without The Noise.
Phase-based motion magnification amplifies faint structural vibrations without increasing noise, making it easier to detect weakly excited modes that are normally hidden in operational modal testing.
- Reveals subtle vibration and weakly excited modes
- Improves identification of resonant frequencies and damping ratios
- Highlights early signs of damage or stiffness loss
- Reduces need for costly, intrusive sensors
Original
All modes
Mode 1
Mode 2
Mode 3
Capture Full-Field, Very High Spatial Resolution Mode Shapes Across The Entire Structure.
Full-field mode shapes map reveal how every point of a structure vibrates at its natural frequencies, enabling high-resolution insight into structural dynamics.
- Capture full vibration pattern across the structure
- Detect early, localized damage
- Enable non-contact, video-based measurement
- Validate and improve structural models
The identified full-field mode shapes of the cantilever beam from the original video measurement frames. From left to right are Mode1, Mode2 and Mode3. The vertical (frame height) and horizontal (frame width) axes represent pixel locations. Note that the scales of the colorbars are different.
VIDEOMAGIC.io Was Born out of the United States Department of Energy’s Los Alamos National Laboratory and commercialized by Sensatek Propulsion Technology, Inc.
Trusted by Experts. Built for You.
Cut costs, save time, and spot issues before they become problems — all from a single video.
“The technology could provide good cost-savings for thermal systems which could otherwise require many human hours in IR data processing in order to find anomalies.”
– Researcher, NASA
“Technology is innovative in nature and could lead to monitoring and trending methods that aid in the long-term maintenance of generation assets.”
– New York Power Authority
Request a test drive
Complete the form to request a test drive and receive more information on VIDEOMAGIC.io.
Recognized by Leading Organizations
