Density-Aware Multi-Task Learning for Crowd Counting

Xiaoheng Jiang

doi:10.1109/TMM.2020.2980945

Density-Aware Multi-Task Learning for Crowd Counting

2021-01-01

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DOI：10.1109/TMM.2020.2980945

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In this paper, we present a method called density-aware convolutional neural network (DensityCNN) to perform the crowd counting task in various crowded scenes. The key idea of the DensityCNN is to utilize high-level semantic information to provide guidance and constraint when generating density maps. To this end, we implement the DensityCNN by adopting a multi-task CNN structure to jointly learn density-level classification and density map estimation. The density-level classification task learns multi-channel semantic features that are aware of the density distributions of the input image. This task is accomplished via our specially designed group-based convolutional structure in a supervised learning manner. In the density map estimation task, these semantic features are deployed together with high-dimension convolutional features to generate density maps with lower count errors. Extensive experiments on four challenging crowd datasets (ShanghaiTech, UCF_CC_50, UCF-QNCF, and WorldExpo'10) and one vehicle dataset TRANCOS demonstrate the effectiveness of the proposed method.

Keywords:

Task analysis

Semantics

Estimation

Feature extraction

Convolutional neural networks

Cameras

Head

Convolutional neural network

crowd counting

density-level classification

density map estimation

multi-task learning

Density-Aware Multi-Task Learning for Crowd Counting

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