Name:
Date:
Data processing 3: stereo-vision
1. Process experimental images from lab
2. Impact of stereo angles
3. ‘Weird’ issue
Technique used
Noise Camera 0
Noise Camera 1
Pre-Filtering
Subset
Step
Correlation criterion
Shape function
Interpolation function
Measurement points
Total number of images
Displacement
Spatial resolution
In-plane resolution
Out-of-plane resolution
Strain
Smoothing method
VSG
Spatial resolution
Resolution
Stereovision Digital Image Correlation
0.7 %
1%
Gaussian – Kernel 5
21
5
ZNSSD
affine
Bicubic splines
4059
311 ( 2 Hz)
21 pixels, 0.7 mm
0.00027 mm
0.00103 mm
Polynomial – bilinear
71 pixels, 2.36 mm
91 pixels, 3.03 mm
211 µm/m
2
Data processing 3: stereo-vision