Research Article
Size Projection Algorithm: Optimal Thresholding Value Selection for Image Segmentation of Electrical Impedance Tomography
Table 1
COMSOL simulation results of three typical setups.
| | Accuracy | Two different size objects | One central large object | Four uniformly distributed objects |
| | Setups | | | | | EIT-reconstructed images by EIT algorithms | IE = 14.39% | IE = 20.53% | IE = 26.75% | | Segmented images by the empirical value method | IE = 15.19% | IE = 13.39% | IE = 12.10% | | Segmented images by the histogram-based method (Otsu’s method) | IE = 15.68% | IE = 10.25% | IE = 34.71% | | Segmented images by the SPA-based method | IE = 6.19% | IE = 5.21% | IE = 8.91% |
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