ZHAO Hongshan, WANG Huidong, LIU Jingxuan, et al. 考虑局部纹理特征和全局温度分布的电力设备红外图像超分辨率重建方法[J]. Power System Protection and Control, 2025, 45(2).
DOI:
ZHAO Hongshan, WANG Huidong, LIU Jingxuan, et al. 考虑局部纹理特征和全局温度分布的电力设备红外图像超分辨率重建方法[J]. Power System Protection and Control, 2025, 45(2). DOI: 10.19783/j.cnki.pspc.240741.
针对传统电力设备红外图像超分辨率重建方法缺乏对设备局部纹理特征和全局温度分布的考虑导致重建后图像分辨率较低的问题,提出一种基于Transformer-GAN聚合网络的电力设备超分辨率重建方法。首先,基于移位卷积设计电力设备局部特征提取模块,在不增加参数情况下扩展卷积的感受野,提取电力设备局部纹理及其周围不同空间维度特征的信息。然后,引入全局特征提取模块,通过深度卷积和空间注意力机制捕捉图像不同区域间温度分布的关联性。最后,采用UNet编解码器网络融合各层局部特征和全局表示,生成清晰自然的电力设备红外图像。算例结果表明,所提方法的峰值信噪比(peak signal-to-noise ratio
PSNR)、结构相似性(structural similarity
SSIM)、和视觉信息保真度(visual information fidelity
VIF)三项评价指标均优于其他方法。同时它具有良好的主观视觉效果,泛化能力较强。
Abstract
To address the problem of low resolution in reconstructed image due to the lack of consideration for local texture features and global temperature distribution in traditional super-resolution reconstruction methods for infrared images of power equipment
a super-resolution reconstruction method based on Transformer-GAN aggregation network is proposed. Firstly
a local feature extraction module for power equipment is designed based on shift convolution
which expands the receptive field of the convolution without increasing parameters
extracting local texture and surrounding spatial dimension features of the power equipment. Then
a global feature extraction module is introduced to capture the correlation of temperature distributions between different regions of the image through deep convolution and spatial attention mechanisms. Finally
the UNet encoder-decoder network is used to fuse the local features and global representations at each layer
generating clear and natural infrared images of power equipment. The case study results show that the proposed method outperforms other methods in terms of peak signal to noise ratio (PSNR)
structural similarity (SSIM)
and visual information fidelity (VIF). It also has good subjective visual effects and strong generalization ability.