Meso-Scale Analysis
Digital Image Correlation:
- Image texture detection
- Non-uniform lighting detection and correction
- Multiple correlation methods: FFT, ZNCC, and ZNSSD
- Multiple evaluation methods with/without window deformation: single pass, multi pass, adaptive
- Hybrid DIC combines both spatial and frequency domain optimization methods in an iterative procedure that may provide better DIC results against other evaluation methods for moving boundary problems.
- Sub-pixel peak-fitting
- Various vector post processing methods
Strain Analysis:
- Finite strain theory that accommodates large deformation is implemented to calculate shear strain, volumetric strain, and element rotation from DIC displacement vectors.
Particle Scale Analysis
Particle Identification:
- Various methods to identify densely packed circular objects using Circular Hough Transform (CHT).
Particle Tracking:
- ID tracking all particles in an image sequence and form individual particle trajectories.
Affine-nonaffine Analysis of Particle Kinematics:
- Affine-nonaffine strain measure provides a useful qualitative measure of the local deviation of the particle movements from a continuous smooth displacement field.
2D Particle Rotation (coming soon)
- Three unique approaches to find particle rotation in 2D based on image registration for different applications.
