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Table 2 Analysis result correlation with known displacement

From: Video image-based analysis of single human induced pluripotent stem cell derived cardiomyocyte beating dynamics using digital image correlation

  Radial component 1 Radial component 3 Radial component 5
Noise variance AVG SD AVG SD AVG SD
0 0.964 0.000 0.952 0.000 0.939 0.000
0.003 0.922 0.034 0.956 0.005 0.781 0.150
0.005 0.761 0.111 0.950 0.013 0.532 0.152
0.007 0.480 0.364 0.926 0.076 0.359 0.389
0.009 0.490 0.177 0.894 0.050 0.456 0.209
0.011 0.423 0.342 0.671 0.310 0.334 0.228
0.013 0.183 0.385 0.441 0.250 0.325 0.324
0.015 0.259 0.335 0.435 0.440 -0.041 0.410
  1. The average correlations (AVG) of the analysis results with the known displacement field and their standard deviations (SD). Noise with variances ranging from 0 to 0.015, with example images shown in Figure 6A-D, was added to video frames that comprised the artificial displacement images of a cardiomyocyte. The average correlation of 8 videos between the analysis results and the known displacement was determined, along with the standard deviation.