Video-Based Vehicle Counting for Expressway: A Novel Approach Based on Vehicle Detection and Correlation-Matched Tracking Using Image Data from PTZ Cameras

Figure 9

Curves of training results and testing results on NOHWY dataset. (a) Test accuracy-training time curves of NOHWY dataset trained by the improved SSD 512 ∗ 512 model. (b) Training loss-training time curves of NOHWY dataset trained by the improved SSD 512 ∗ 512 model. (c) Precision-Recall curves of the SSD 512 ∗ 512 model detection algorithms. AP scores were used to describe the vehicle detection models’ performance. (d) Precision-Recall cures on the testing set of the NOHWY dataset.

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