Research Article
Research on Coal-Rock Fracture Image Edge Detection Based on Tikhonov Regularization and Fractional Order Differential Operator
Table 5
Localization errors of integer order and fractional order methods.
| Evaluation metrics | The first-order Sobel operator () | The fractional order Sobel operator () | The second-order Laplacian operator () | The fractional order Laplacian operator () |
| Missed detection rate | 0.3677 | 0.3001 | 0.5136 | 0.3991 | False detection rate | 0.6541 | 0.6009 | 0.5228 | 0.4399 |
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