Table 1.
Loading procedure of the base loads.
Fig 1.
Diagram of the image acquisition setup.
Table 2.
Image features extracted from base load image.
Fig 2.
Flow chart of base load image feature extraction.
Fig 3.
Examples of wrinkle information and plain weave structure information.
Table 3.
Validation results of the base load age grading models using different classifiers.
Table 4.
Test results of the base load age grading models using different classifiers.
Fig 4.
Confusion matrices for different classifier.
(A) kNN. (B) MLP. (C) LDA. (D) LR.
Table 5.
Computational time for all classification models.
Fig 5.
Illustration of feature importance in the LR model.
Fig 6.
Locally magnified view of the base load image.
(A) Original base load image (1280 × 1024). (B) Image after first cropping it to 1024 × 1024 centered on the image origin and then scaling it down to 224 × 224.