Research Article
Stamps Detection and Classification Using Simple Features Ensemble
Table 6
Comparison with other approaches, detect refers to detection stage, verify refers to verification stage, and shape refers to shape analysis stage.
| | | Indicator | Algorithm | | | GSA [6] | PDH & DCT [25] | [3] | GHT & CPG [4] | [5] | Our |
| | Detect | Number of doc. | 170 | 170 | 400 | — | 127 | 719 | | Accur. [%] | 82 | 82 | 83.4 (69) | — | — | 70.44 |
| | Verify | Number of obj. | — | — | — | — | — | 1326 | | Accur. [%] | — | — | 83.8 | — | — | 83.4 |
| | Shape | Number of stamps | — | 140 | — | 220 | — | 2101 | | Accuar. [%] | 93 | 77 | — | 98.58 | 92.03 | 97.7 |
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