基于边缘引导与特征融合的分阶段图像去模糊
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西安建筑科技大学

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中图分类号:

TP391.41

基金项目:

国家自然科学基金(No.12202332,No.61902304),陕西省自然科学基础研究计划资助项目(No.2021JQ-495)


Phased Image Deblurring Based on Edge Guidance and Feature Fusion
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xauat

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the National Natural Science Foundation of China (12202332 No., 61902304 ),the Natural Science Basic Research Program of Shaanxi (2021JQ-495 No.) No.),

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    摘要:

    针对现有方法去模糊后图像缺乏足够清晰边缘的问题,提出了一种基于边缘引导与特征融合的分阶段图像去模糊方法,分两个阶段逐步去除模糊。首先,第一阶段应用含双交叉集成注意力模块的编解码网络学习不同尺度下图像的内容特征,初步去除模糊信息。然后,构建边缘分支网络提取图像边缘特征。再次,设计了边缘引导去模糊模块以耦合不同分辨率下图像的内容与边缘特征。最后,第二阶段通过级联的残差块和双交叉集成注意力模块进一步去除图像模糊,并通过引入自校准注意融合模块增强特征表达效果。实验结果表明:所提方法去模糊后图像的峰值信噪比和结构相似度均值分别达到32.78和0.964,均优于其它对比方法。所提方法可以显著提高去模糊性能且去模糊后图像边缘结构更加完整。

    Abstract:

    Aiming at the problem that the image lacks sufficient clear edge after deblurring by existing methods, a phased image deblurring method based on edge guidance and feature fusion is proposed, and the deblurring task is divided into two stages to gradually remove blur. Firstly, the codec network with double cross integrated attention module is used to learn the content features of images at different scales to realize the preliminary removal of blur. Secondly, an edge branch network is constructed to extract image edge features. Thirdly, an edge-guided deblurring module is designed to couple the content and edge features of images at different resolutions. Finally, cascaded residual blocks and dual cross integrated attention modules are used to achieve further remove of blur, and a self-calibrated attention fusion module is introduced to enhance the feature expression. The experimental results demonstrate that the average peak signal-to-noise ratio and structural similarity of the proposed method reach 32.78 and 0.964, respectively, which are superior to other comparison methods. The proposed method can significantly improve the deblurring performance and make the image edge structure more complete after deblurring.

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  • 收稿日期:2023-05-13
  • 最后修改日期:2023-06-28
  • 录用日期:2023-07-06
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