MCA: Moment Channel Attention Networks

• URL: http://arxiv.org/abs/2403.01713v1
• Date: Mon, 4 Mar 2024 04:02:59 GMT
• Title: MCA: Moment Channel Attention Networks
• Authors: Yangbo Jiang, Zhiwei Jiang, Le Han, Zenan Huang, Nenggan Zheng
• Abstract summary: We investigate the statistical moments of feature maps within a neural network. Our findings highlight the critical role of high-order moments in enhancing model capacity. We propose the Moment Channel Attention (MCA) framework, which efficiently incorporates multiple levels of moment-based information.
• Score: 10.780493635885225
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Channel attention mechanisms endeavor to recalibrate channel weights to enhance representation abilities of networks. However, mainstream methods often rely solely on global average pooling as the feature squeezer, which significantly limits the overall potential of models. In this paper, we investigate the statistical moments of feature maps within a neural network. Our findings highlight the critical role of high-order moments in enhancing model capacity. Consequently, we introduce a flexible and comprehensive mechanism termed Extensive Moment Aggregation (EMA) to capture the global spatial context. Building upon this mechanism, we propose the Moment Channel Attention (MCA) framework, which efficiently incorporates multiple levels of moment-based information while minimizing additional computation costs through our Cross Moment Convolution (CMC) module. The CMC module via channel-wise convolution layer to capture multiple order moment information as well as cross channel features. The MCA block is designed to be lightweight and easily integrated into a variety of neural network architectures. Experimental results on classical image classification, object detection, and instance segmentation tasks demonstrate that our proposed method achieves state-of-the-art results, outperforming existing channel attention methods.

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