Multi-level Cross-modal Interaction Network for RGB-D Salient Object Detection

• URL: http://arxiv.org/abs/2007.14352v2
• Date: Mon, 8 Mar 2021 08:38:34 GMT
• Title: Multi-level Cross-modal Interaction Network for RGB-D Salient Object Detection
• Authors: Zhou Huang, Huai-Xin Chen, Tao Zhou, Yun-Zhi Yang and Bi-Yuan Liu
• Abstract summary: We propose a novel Multi-level Cross-modal Interaction Network (MCINet) for RGB-D based salient object detection (SOD) Our MCI-Net includes two key components: 1) a cross-modal feature learning network, which is used to learn the high-level features for the RGB images and depth cues, effectively enabling the correlations between the two sources to be exploited; and 2) a multi-level interactive integration network, which integrates multi-level cross-modal features to boost the SOD performance.
• Score: 3.581367375462018
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Depth cues with affluent spatial information have been proven beneficial in boosting salient object detection (SOD), while the depth quality directly affects the subsequent SOD performance. However, it is inevitable to obtain some low-quality depth cues due to limitations of its acquisition devices, which can inhibit the SOD performance. Besides, existing methods tend to combine RGB images and depth cues in a direct fusion or a simple fusion module, which makes they can not effectively exploit the complex correlations between the two sources. Moreover, few methods design an appropriate module to fully fuse multi-level features, resulting in cross-level feature interaction insufficient. To address these issues, we propose a novel Multi-level Cross-modal Interaction Network (MCINet) for RGB-D based SOD. Our MCI-Net includes two key components: 1) a cross-modal feature learning network, which is used to learn the high-level features for the RGB images and depth cues, effectively enabling the correlations between the two sources to be exploited; and 2) a multi-level interactive integration network, which integrates multi-level cross-modal features to boost the SOD performance. Extensive experiments on six benchmark datasets demonstrate the superiority of our MCI-Net over 14 state-of-the-art methods, and validate the effectiveness of different components in our MCI-Net. More important, our MCI-Net significantly improves the SOD performance as well as has a higher FPS.

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