Bilateral Network with Residual U-blocks and Dual-Guided Attention for Real-time Semantic Segmentation

• URL: http://arxiv.org/abs/2310.20305v1
• Date: Tue, 31 Oct 2023 09:20:59 GMT
• Title: Bilateral Network with Residual U-blocks and Dual-Guided Attention for Real-time Semantic Segmentation
• Authors: Liang Liao, Liang Wan, Mingsheng Liu, Shusheng Li
• Abstract summary: We design a new fusion mechanism for two-branch architecture which is guided by attention computation. To be precise, we use the Dual-Guided Attention (DGA) module we proposed to replace some multi-scale transformations. Experiments on Cityscapes and CamVid dataset show the effectiveness of our method.
• Score: 18.393208069320362
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: When some application scenarios need to use semantic segmentation technology, like automatic driving, the primary concern comes to real-time performance rather than extremely high segmentation accuracy. To achieve a good trade-off between speed and accuracy, two-branch architecture has been proposed in recent years. It treats spatial information and semantics information separately which allows the model to be composed of two networks both not heavy. However, the process of fusing features with two different scales becomes a performance bottleneck for many nowaday two-branch models. In this research, we design a new fusion mechanism for two-branch architecture which is guided by attention computation. To be precise, we use the Dual-Guided Attention (DGA) module we proposed to replace some multi-scale transformations with the calculation of attention which means we only use several attention layers of near linear complexity to achieve performance comparable to frequently-used multi-layer fusion. To ensure that our module can be effective, we use Residual U-blocks (RSU) to build one of the two branches in our networks which aims to obtain better multi-scale features. Extensive experiments on Cityscapes and CamVid dataset show the effectiveness of our method.

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