CEMINet: Context exploration and multi-level interaction network for salient object detection

DIGITAL SIGNAL PROCESSING(2024)

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摘要
Precise salient object detection (SOD) in realistic scenarios heavily relies on multi -scale context. Although existing SOD methods have made significant advancements by incorporating contextual information, they often overlook the correlation of contexts at different scales during feature extraction, leading to challenges in producing precise saliency maps. Our proposed solution to mitigate the above challenges associated with SOD is the Context Exploration and Multi -level Interaction Network (CEMINet). Specifically, we first develop a progressive multi -scale context extraction (PMCE) module, which enables the gradual capture of strongly correlated multi -scale context with the aid of multi -receptive -field convolution operations. Additionally, we design a hierarchical feature hybrid interaction (HFHI) module to effectively aggregate multi -level features by exploiting a hybrid interaction strategy following a top -down approach. And then, a well -designed stereoscopic attention enhancement (SAE) module is presented to refine multi -level features from HFHI through two parallel attention branches combined in a stereoscopic structure for generating precise predictions. Comprehensive experiments show our CEMINet achieves superior performance, without requiring any post -processing, compared to 16 state-of-the-art SOD models across five popular datasets. To substantiate the effectiveness and generality of our model, we also implement it to the camouflaged object detection (COD), outperforming the corresponding state-of-the-art models.
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关键词
Camouflaged object detection,Deep learning,Multi-scale context,Multi-level feature,Salient object detection
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