Recently, some state-of-the-art (SOTA) methods have designed dedicated context extractors to capture the global information that serves as a key clue for describing crowd density. A promising alternative is the transformer-based model which inherently captures long-range context dependencies. Recent related studies have made impressive progress, yet the following issues remain: (1) The size of the heads in the image is large near and small far away. The existing models fail to cope well with these variations. (2) There is an imbalance in the distribution of samples across different densities in the dataset, which leads to poor network performance on density distributions with a small number of samples. To address these issues, we propose to aggregate multi-scale views through Compare and Focus strategies. In terms of the first strategy, we mine differential hints from multi-scale view features to capture heads of varying sizes. This can effectively reduce the influence of redundant information while perceiving the subtleties of various view inputs, making it simpler to establish discriminative representations. As for the second strategy, we introduce a new activation function to formulate the Region of Interest (ROI) extraction module that enables the network to focus on relevant regions effectively. It can alleviate the extreme distribution imbalance of samples with different densities. Finally, several experiments show that our method achieves SOTA performance on four challenging datasets.


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    Title :

    Compare and Focus: Multi-Scale View Aggregation for Crowd Counting


    Contributors:
    Jiang, Shengqin (author) / Cai, Jialu (author) / Zhang, Haokui (author) / Liu, Yu (author) / Liu, Qingshan (author)

    Published in:

    Publication date :

    2024-10-01


    Size :

    2332774 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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