From: Optimisation Method for Determination of Crack Tip Position Based on Gauss-Newton Iterative Technique
Parameter
Conventional method
Proposed method
Tip coordinates (pixel)
(820, 660)
(805, 648)
Mean E(η)
7.129 × 10−6
−2.474 × 10−6
Variance D(η)
1.102 × 10−5
1.538 × 10−6