Research Article
Patch-Based Principal Component Analysis for Face Recognition
Table 2
Comparisons of the four methods on recognition accuracy on the ORL database.
| Method | Accuracy (%) | Patch size (pixel) | | | Time (s) |
| 1DPCA | 88.0 | — | — | — | 2.673 | 2DPCA | 90.5 | — | — | — | 5.026 | (2D)2PCA | 90.5 | — | — | — | 4.044 | PPCA | 91.0 | | 0 | 7 | 7.186 | | 0 | 2 | 6.677 | | 4 | 0 | 8.617 | | 2 | 2 | 7.475 |
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