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Table 11 Effect of change in scale and aspect ratio on accuracy

From: Performance enhancement method for multiple license plate recognition in challenging environments

Anchor scales Aspect ratios Accuracy
128 × 128, 256 × 256 1:1, 1:2 92.03
128 × 128, 256 × 256 2:1, 1:1, 1:2 93.45
128 × 128, 256 × 256, 512 × 512 1:1, 1:2 96.05
128 × 128, 256 × 256, 512 × 512 2:1, 1:1, 1:2 99.03