Research Article
Color, Scale, and Rotation Independent Multiple License Plates Detection in Videos and Still Images
Table 2
Performance comparison of the proposed LP detection method with few of the competitive LP detection methods from the literature.
| Algorithm and references | Data set | Number of images in data set | Types of vehicles present in data set | LP detection rate |
| CIP [3] | Proprietary | 80 | Cars | 91.25% | ESM [4] | Proprietary | 9825 | Vans, trucks, cars | 99.6% | FCC [5] | Proprietary | 150 | Not reported | 95.3% | SCW [6] | Media-lab (proprietary) | 1334 | Vans, trucks, cars | 96.5% | RTR [7] | Proprietary | 400 | Not reported | 83.5% | RTR [7] | Caltech | 1999 | Cars | 84.8% | SWHVP [8] | Proprietary | 522 | Motorcycles | 97.55% | Two pass [9] | Proprietary | 9026 | Cars, trucks | 97.16% | RELIP [10] | Proprietary | 100 | Not reported | 97% | PVW [11] | Proprietary | 410 | Not reported | 93.2% | VEDA [12] | Proprietary | 664 | Cars | 91.65% | AOLP [13] | Media-lab | 741 | Vans, trucks, cars | 92.1% | AOLP [13] | AOLP (proprietary) | 2049 | Cars and vans | 93.33% | DIP-GA [14] | Proprietary | 800 | Vans, trucks, cars | 98.75% | DIP-GA [14] | Media-lab | 335 | Vans, trucks, cars | 97.61% | Proposed geometry-based clustering method | Media-lab | 741 | Vans, trucks, cars | 97.3% | Proposed geometry-based clustering method | Proprietary | 159 | Cars, trucks, motorcycles | 98.74% | Proposed geometry-based clustering method | Media-lab and proprietary | 900 | Vans, trucks, cars, motorcycles | 97.56% | Proposed geometry-based clustering method | AOLP | 2049 | Cars and vans | 93.7% |
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