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MH-MetroNet-A Multi-Head CNN for Passenger-Crowd Attendance Estimation
Pier Luigi Mazzeo1, Riccardo Contino1, Paolo Spagnolo1
1Institute of Applied Sciences and Intelligent Systems, National Research Council of Italy, 73100 Lecce, Italy.
Journal of Imaging
|August 30, 2021
Summary
Accurate passenger counting in metro cars is crucial for crowd management. A new multi-head Convolutional Neural Network (CNN), MH-MetroNet, effectively estimates passenger density and count, outperforming existing crowd counting methods.
Area of Science:
- Computer Vision
- Artificial Intelligence
- Transportation Systems
Background:
- Accurate passenger attendance estimation in metro cars is vital for safe crowd coordination and management in stations.
- Existing crowd counting methods often struggle with dense and occluded scenes typical in public transport.
Purpose of the Study:
- To propose a novel multi-head Convolutional Neural Network (CNN) architecture, MH-MetroNet, for accurate passenger attendance estimation in metro cars.
- To evaluate the performance of MH-MetroNet against state-of-the-art crowd counting architectures on diverse datasets.
Main Methods:
- Development of a multi-head CNN architecture featuring a convolutional backbone for feature extraction and multi-head layers for density map estimation.
- Training and testing the MH-MetroNet on publicly available crowd counting datasets (ShanghaiTech A/B, UCF_CC_50) and a custom dataset from Italian subway cars.
- Comparison of MH-MetroNet's performance using Mean Absolute Error (MAE) and Mean Square Error (MSE) against established crowd counting models.
Main Results:
- MH-MetroNet demonstrated superior performance in predicting passenger counts compared to existing state-of-the-art crowd counting architectures.
- The proposed architecture achieved lower Mean Absolute Error (MAE) and Mean Square Error (MSE) on both benchmark and real-world subway datasets.
- Effective estimation of crowd density maps was achieved, leading to accurate people number prediction.
Conclusions:
- The MH-MetroNet architecture offers a robust and accurate solution for estimating passenger attendance in metro environments.
- This technology can significantly enhance the safety and efficiency of crowd management in metro systems.
- The study validates the effectiveness of the proposed CNN approach for real-world crowd counting applications in transportation.

