单帧红外热图像增强方法及系统

By simultaneously acquiring infrared thermal images and visible light images, calculating virtual diffusion coefficients, generating Gaussian diffusion kernels and convolution kernels, performing convolution and frequency domain transformations, and constructing a conditional generative adversarial network, the problem of noise interference and image defocusing in single-frame infrared images under complex scenes is solved, achieving high-precision thermal flux assessment and enhancement effects.

CN122134588BActive Publication Date: 2026-07-17HUNAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN UNIV
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing single-frame infrared image enhancement techniques are difficult to achieve high-precision heat flux assessment in complex scenarios. They suffer from severe noise interference, limited image quality, difficulty in balancing physical models and data-driven methods, and severe image defocusing in multispectral detection, failing to meet the requirements for high-precision detection.

Method used

By simultaneously acquiring infrared thermal images and visible light images, calculating virtual diffusion coefficients, generating Gaussian diffusion kernels and convolution kernels, performing convolution operations and frequency domain transformations, constructing a conditional generative adversarial network, incorporating multispectral scene conditional information, training the network with a dual loss function, and outputting a target-enhanced thermal flow image.

Benefits of technology

It improves the signal-to-noise ratio of the image, eliminates halo artifacts, enhances the physical rationality of heat flow inversion, improves the clarity of defect edges and the reliability of detection results, and meets the requirements of high-precision quantitative heat flow analysis.

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Abstract

本申请实施例公开单帧红外热图像增强方法及系统,所述方法包括:基于所述单帧红外热图像的积分时间、相机像元宽度及所选用的多光谱滤波片的热辐射特性,计算虚拟扩散系数;生成高斯扩散核心与序列卷积核,并形成适配多光谱波段热扩散特性的卷积核序列;添加白噪声以生成含噪图像序列,将所述含噪图像序列与所述卷积核序列进行卷积运算,得到平滑图像序列;对所述平滑图像序列进行残差计算、扩充处理以及三维傅里叶变换,将频域数据逆变换回时空域,得到满足目标质量的中间图像;将所述中间图像输入进行网络训练完成的所述条件生成对抗网络;通过所述条件生成对抗网络输出目标增强热流图像,并进行对比展示及存储。
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