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Cross-Modal Fusion and Progressive Decoding Network for RGB-D Salient Object Detection

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Abstract

Most existing RGB-D salient object detection (SOD) methods tend to achieve higher performance by integrating additional modules, such as feature enhancement and edge generation. There is no doubt that these modules will inevitably produce feature redundancy and performance degradation. To this end, we exquisitely design a cross-modal fusion and progressive decoding network (termed CPNet) to achieve RGB-D SOD tasks. The designed network structure only includes three indispensable parts: feature encoding, feature fusion and feature decoding. Specifically, in the feature encoding part, we adopt a two-stream Swin Transformer encoder to extract multi-level and multi-scale features from RGB images and depth images respectively to model global information. In the feature fusion part, we design a cross-modal attention fusion module, which can leverage the attention mechanism to fuse multi-modality and multi-level features. In the feature decoding part, we design a progressive decoder to gradually fuse low-level features and filter noise information to accurately predict salient objects. Extensive experimental results on 6 benchmarks demonstrated that our network surpasses 12 state-of-the-art methods in terms of four metrics. In addition, it is also verified that for the RGB-D SOD task, the addition of the feature enhancement module and the edge generation module is not conducive to improving the detection performance under this framework, which provides new insights into the salient object detection task. Our codes are available at https://github.com/hu-xh/CPNet.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China under Grants 61976042 and 61972068 and by the Liaoning Revitalization Talents Program under Grant XLYC2007023.

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  1. Jing Sun, Fasheng Wang and Haojie Li have contributed equally to this work.

Authors and Affiliations

  1. School of Information and Communication Engineering, Dalian Minzu University, Liaohexi Road, Dalian, 116600, Liaoning, China

    Xihang Hu, Fuming Sun, Jing Sun & Fasheng Wang

  2. College of Computer Science and Engineering, Shandong University of Science and Technology, Qianwan Port Road, Qingdao, 266590, Shandong, China

    Haojie Li

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  1. Xihang Hu
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Correspondence to Fuming Sun.

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Hu, X., Sun, F., Sun, J. et al. Cross-Modal Fusion and Progressive Decoding Network for RGB-D Salient Object Detection. Int J Comput Vis (2024). https://doi.org/10.1007/s11263-024-02020-y

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