Infrared Physics & Technology最新文献

Development of monitoring software combined infrared spectra with multivariate curve resolution-alternating least squares (MCR-ALS): Tracking the dynamic synthesis process of 3,7-dinitro-1,3,5,7-tetraazabicyclo[3.3.1]nonane (DPT) 红外光谱与多元曲线分辨率交替最小二乘法（MCR-ALS）相结合的监测软件开发：跟踪3,7-二硝基-1,3,5,7-四氮杂环[3.3.1]壬烷（DPT）的动态合成过程

IF 3.4 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-27 DOI: 10.1016/j.infrared.2025.106041

Shichuan Qian , Hui Chao , Zhi Wang , Guanghui Gu , Yinguang Xu , Yulin Wei , Xinping Zhao , Xin Sheng , Jianmei Ren , Shaohua Jin , Lijie Li , Kun Chen

{"title":"Development of monitoring software combined infrared spectra with multivariate curve resolution-alternating least squares (MCR-ALS): Tracking the dynamic synthesis process of 3,7-dinitro-1,3,5,7-tetraazabicyclo[3.3.1]nonane (DPT)","authors":"Shichuan Qian , Hui Chao , Zhi Wang , Guanghui Gu , Yinguang Xu , Yulin Wei , Xinping Zhao , Xin Sheng , Jianmei Ren , Shaohua Jin , Lijie Li , Kun Chen","doi":"10.1016/j.infrared.2025.106041","DOIUrl":"10.1016/j.infrared.2025.106041","url":null,"abstract":"<div><div>The monitoring and analysis of chemical reaction processes are essential for improving reaction efficiency, optimizing production conditions, and ensuring product quality. Infrared spectroscopy, as a non-destructive and real-time analytical technique, provides dynamic insights into the evolution of component concentrations within reaction systems. In this study, the monitoring software was developed by combining infrared spectra with multivariate curve resolution-alternating least squares (MCR-ALS) to dynamically track complex chemical reactions. Using the synthesis of 3,7-dinitro-1,3,5,7-tetraazabicyclo[3.3.1]nonane (DPT) as a case study, the concentration profiles and pure spectra of the reactant hexamethylenetetramine (HMTA), the esterified intermediate (3-acetoxymethyl-7-nitro-1,3,5,7-tetraazabicyclo[3.3.1]nonane), and the product (DPT) were successfully resolved. Computed infrared spectra for HMTA and DPT showed high similarity to measured spectra, with similarity scores of 0.937 and 0.915, respectively. MCR-ALS analysis allowed deduction of the intermediate structure and proposal of the DPT synthesis mechanism, consistent with prior reports and validating the accuracy of the method. Kinetic modeling revealed a three-stage reaction pathway following an A → B → C model, where A, B, and C correspond to HMTA, the esterified intermediate, and DPT, respectively. The process follows first-order kinetics with rate constants of k<sub>1</sub> = 0.095 min<sup>−1</sup> and k<sub>2</sub> = 0.00419 min<sup>−1</sup>. Overall, this study demonstrates the potential of the developed software for monitoring complex reaction systems, supporting process optimization, quality control, and risk management.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106041"},"PeriodicalIF":3.4,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Near infrared laser sensor for multi-species measurement in high temperature flue gas 用于高温烟气多组分测量的近红外激光传感器

IF 3.4 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-26 DOI: 10.1016/j.infrared.2025.106040

Jinyi Li , Yuqing Zhang , Keming Wang , Yue Ji , Zuowei Fu , Limei Song

{"title":"Near infrared laser sensor for multi-species measurement in high temperature flue gas","authors":"Jinyi Li , Yuqing Zhang , Keming Wang , Yue Ji , Zuowei Fu , Limei Song","doi":"10.1016/j.infrared.2025.106040","DOIUrl":"10.1016/j.infrared.2025.106040","url":null,"abstract":"<div><div>A near-infrared (NIR) laser gas analyzer based on tunable diode laser absorption spectroscopy is developed for fast, high-sensitivity and multi-species detection of flue gas components in coal-fired power plant denitrification processes. Two NIR distributed feedback semiconductor lasers are employed to simultaneously cover the absorption lines of ammonia(NH<sub>3</sub>), water (H<sub>2</sub>O), and hydrogen chloride (HCl). Wavelength modulation spectroscopy (WMS) scheme is used and distinct sinusoidal modulation amplitudes are applied to selected spectral ranges and optimized accordingly. A dual-channel digital lock-in amplifier circuit is designed to generate driving signals for time-division multiplexed operation of the lasers and to demodulate the detector signal. Both first harmonic (1<em>f</em>) and second harmonic (2<em>f</em>) signals of gas absorption are outputted simultaneously. Gas concentrations are obtained by fitting measured WMS-2<em>f</em>/1<em>f</em> signals with simulations using the Levenberg-Marquardt algorithm. Heat tracing is employed in gas sampling, and gas measurements are carried out in a 5-meter-pathlength gas cell that is operated at an elevated temperature of 523 K. Results demonstrate measurement accuracies of 2.24 % (NH<sub>3</sub>), 2.07 % (HCl), and 0.78 % (H<sub>2</sub>O), measurement sensitivity of 0.0318 ppm, 0.017 ppm, and 0.0104 %, and rise times of 17.4 s, 11.2 s, and 6.4 s, respectively. The performance of our laser sensor demonstrates its potential for applications in multi-species detection of high-temperature flue gas emissions.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106040"},"PeriodicalIF":3.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-sensitivity parallel SPR probes for refractive index and temperature sensing 用于折射率和温度传感的高灵敏度平行SPR探头

IF 3.1 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-25 DOI: 10.1016/j.infrared.2025.106036

Zhiyong Yin , Xili Jing , Shuguang Li

{"title":"High-sensitivity parallel SPR probes for refractive index and temperature sensing","authors":"Zhiyong Yin , Xili Jing , Shuguang Li","doi":"10.1016/j.infrared.2025.106036","DOIUrl":"10.1016/j.infrared.2025.106036","url":null,"abstract":"<div><div>In order to advance the surface plasmon resonance (SPR) sensing technique toward the near-infrared (NIR), we propose to use a semiconductor film called TiO<sub>2</sub> to modulate the SPR effect. The results show that TiO<sub>2</sub> film can shift the SPR characteristic wavelength to the NIR and display higher sensing sensitivity than the visible band. The degree of redshift is positively correlated with the thickness of the semiconductor film. In addition, this work analyzes the physical mechanism by which TiO<sub>2</sub> modulates the SPR effect and proposes a dual-probe sensing system with a parallel structure. The system operates with a 400–1700 nm bandwidth for refractive index (RI) and temperature sensing. The simulation and experimental results of the sensing system show consistency. The experimental results show that the characteristic wavelength of the RI probe shifts in the visible range with a maximum RI sensitivity of 12800 nm/RIU and a detection range of 1.333–1.420 RI; the characteristic wavelength of the temperature probe shifts in the NIR with a maximum temperature sensitivity of 6.4 nm/℃ and a detection range of 0–100 °C. The test results also show that the sensing system has good stability in a short period. The method of using semiconductor film to modulate the SPR effect successfully promotes the extension of SPR sensing technology to the infrared wavelength band, and the parallel probe structure breaks through the narrow-band limitation faced by traditional multiparameter sensing, which provides value for the study of wide-range measurements of fiber optic sensors.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106036"},"PeriodicalIF":3.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early detection of mold in cured tobacco leaves based on temporal hyperspectral imaging 基于时间高光谱成像的烤烟叶片霉变早期检测

IF 3.1 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-24 DOI: 10.1016/j.infrared.2025.106035

Chengyuan Li , Jianwei Ma , Erqiang Zhang , Jinsong Du , Lei Zhang , Min Zhao , Zongying Wang

{"title":"Early detection of mold in cured tobacco leaves based on temporal hyperspectral imaging","authors":"Chengyuan Li , Jianwei Ma , Erqiang Zhang , Jinsong Du , Lei Zhang , Min Zhao , Zongying Wang","doi":"10.1016/j.infrared.2025.106035","DOIUrl":"10.1016/j.infrared.2025.106035","url":null,"abstract":"<div><div>The early detection and warning of mold in tobacco leaves are critical for minimizing losses caused by mold. Existing studies primarily focus on spectral feature analysis at a single time point, overlooking the dynamic evolution of the mold process. To address this limitation, we propose a novel early detection method for mold in tobacco leaves using temporal hyperspectral imaging. First, hyperspectral data of moldy tobacco leaf samples were collected at different time points. Spectral correction and image alignment methods were applied to enhance data quality and ensure spatial consistency across hyperspectral images acquired at different times. To further capture the dynamic characteristics of mold, cumulative energy, and backward short-term energy features are introduced and combined with first- and second-order derivatives, enabling a comprehensive depiction of the temporal behavior of spectral reflectance while effectively identifying local anomalies and long-term trends during the early stages of mold. Additionally, a conditional Wasserstein generative adversarial network with gradient penalty (CWGAN-GP) addresses data imbalance issues, incorporating gradient penalties and conditional information to enhance the quality of generated samples significantly. Experimental results demonstrate that the proposed method effectively detects spectral changes associated with the early stages of mold in tobacco leaves, offering a promising approach for mold warning and real-time monitoring. This study enriches the theoretical framework of hyperspectral image analysis and provides valuable technical support for tobacco quality control.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106035"},"PeriodicalIF":3.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Based on SESAM 2 μm band Tm:YLF continuous-wave mode-locked laser 基于SESAM 2 μm波段Tm:YLF连续波锁模激光器

IF 3.1 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-23 DOI: 10.1016/j.infrared.2025.106033

Ziqi Meng , Jingliang Liu , Jing Zhang , Xinyu Chen , Yongji Yu , Guangyong Jin

{"title":"Based on SESAM 2 μm band Tm:YLF continuous-wave mode-locked laser","authors":"Ziqi Meng , Jingliang Liu , Jing Zhang , Xinyu Chen , Yongji Yu , Guangyong Jin","doi":"10.1016/j.infrared.2025.106033","DOIUrl":"10.1016/j.infrared.2025.106033","url":null,"abstract":"<div><div>This paper is based on Semiconductor Saturable Absorber Mirror as passive mode-locking elements to construct a mode-locked laser, achieving stable continuous wave mode-locked laser output in the 2 μm wavelength band through efficient end-pumping of Tm: YLF crystals. First, the continuous mode-locking threshold conditions are obtained through theoretical analysis and calculation, and the laser cavity length parameters are designed using ABCD matrix theory to control the astigmatism of the resonator and the distribution size of the transverse mode spot at each position. A ’W’ shaped folded laser resonator was designed, and at a cavity length of 1.857 m, stable mode-locked laser output was obtained when the absorbed pump power exceeded 12.24 W. When the maximum pump power was 20.17 W, the maximum average output power of the mode-locked laser was 1.52 W. The pulse width was 1.716 ps with the repetition frequency of 81 MHz, and the beam quality M2 is 1.51. The results indicate that the Tm: YLF crystal can achieve relatively stable ultrashort pulse sequences, high-power output, and continuous mode-locked laser operation with high beam quality through rational design of the cavity structure.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106033"},"PeriodicalIF":3.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Segment anything model edge prior-guided infrared and visible image fusion method 分割任意模型边缘的先验制导红外与可见光图像融合方法

IF 3.1 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-22 DOI: 10.1016/j.infrared.2025.106013

Jianhua Yuan, Zhixian Tan, Kaixiang Xu, Zihan Wang, Jianan Zhang

{"title":"Segment anything model edge prior-guided infrared and visible image fusion method","authors":"Jianhua Yuan, Zhixian Tan, Kaixiang Xu, Zihan Wang, Jianan Zhang","doi":"10.1016/j.infrared.2025.106013","DOIUrl":"10.1016/j.infrared.2025.106013","url":null,"abstract":"<div><div>Hindered by the low robustness of visible imaging and the low resolution of infrared imaging, visible and infrared images captured in real scenarios often suffer from severe detail loss and indistinct edge appearance. Therefore, modeling of fine-grained edges is crucial for high-quality fused image generation. However, recent deep learning-based fusion algorithms have limitations in exploring highly robust structural priors, in other words, limited edge perception ability, resulting in edge artifacts and low clarity. To address the aforementioned issues, we propose a novel fusion framework guided by segment anything model (SAM) edge priors. SAM boasts outstanding zero-shot generalization capabilities, enabling it to extract high-quality edge priors from target scenes even under unideal imaging conditions, such as low-light and dense noise. We propose an image content-edge fusion block (CEFB), which progressively injects edge information from the source images into the image content features, to enhance their edge representation ability. Additionally, considering the significance of inter-modality interaction, we also introduced an image translation network, achieving mutual translation between infrared and visible modalities. Then, the SAM edge priors extracted from the transformed images, which have unchanged content but altered style, are utilized and embedded into the content features after modality interaction through the proposed CEFB, thus strengthening the representation of modality-invariant edge structures. Extensive experiments on two public datasets demonstrate our method generates fused images with more distinct edges and enhanced target information, and also exhibits strong generalization capabilities across diverse scenarios.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106013"},"PeriodicalIF":3.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-Pulse 2 μm optical parametric oscillator based on stimulated Brillouin scattering technology 基于受激布里渊散射技术的2 μm短脉冲光学参量振荡器

IF 3.4 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-22 DOI: 10.1016/j.infrared.2025.106032

Chenjie Zhao , Yu Yu , Hengzhe Yu , Liping Liu , Jian Yin , Chen Cao , Qifan Dang , Jianfeng Yue , Yu Zhang , Kai Li , Yunfei Li , Yulei Wang , Zhiwei Lu

引用次数: 0

Global-local spatially aware preserving projection for dimensionality reduction of hyperspectral images 基于全局局部空间感知的高光谱图像降维保留投影

IF 3.1 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-22 DOI: 10.1016/j.infrared.2025.106014

Tao Zhang , Fang Wang , Limin Zeng

{"title":"Global-local spatially aware preserving projection for dimensionality reduction of hyperspectral images","authors":"Tao Zhang , Fang Wang , Limin Zeng","doi":"10.1016/j.infrared.2025.106014","DOIUrl":"10.1016/j.infrared.2025.106014","url":null,"abstract":"<div><div>Hyperspectral remote sensing images, constrained by noise interference and acquisition equipment limitations, often suffer from severe phenomena of ‘spectral confusion between heterogeneous targets (SCHT)’ and ‘spectral variability within homogeneous targets (SVHT)’. Conventional dimensionality reduction methods based on locality preserving projection (LPP) fail to effectively capture complex spatial–spectral features due to their neglect of spatial context structures. To address this challenge, this paper proposes the global-local spatially aware preserving projection (GLSAPP) framework, which achieves dual optimizations through spatial–spectral joint modeling. On the one hand, a composite neighborhood structure is constructed by integrating spatial distance neighborhoods and spectral similarity neighborhoods, and a dual-weighting mechanism for spectral consistency and spatial coherence is designed. This mechanism adaptively enhances intra-class compactness and inter-class discriminability during manifold learning. On the other hand, a novel local feature divergence metrics and a global class separation indices are proposed to measure the phenomena of SCHT and SVHT. A joint optimization model incorporating local geometric preservation terms and global repulsive regularization terms is then established. Experiments conducted on three publicly available hyperspectral datasets demonstrate that compared with state-of-the-art dimensionality reduction methods, GLSAPP significantly reduces both SCHT rate and SVHT rate. These results validate the effectiveness of GLSAPP in suppressing spectral variability and confusion through spatial–spectral collaborative optimization, providing a more accurate feature representation method for hyperspectral image classification.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106014"},"PeriodicalIF":3.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144694882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MSMD-YOLO: Multi-scale and multi-directional Mamba scanning infrared image object detection based on YOLO MSMD-YOLO：基于YOLO的多尺度多向曼巴扫描红外图像目标检测

IF 3.4 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-22 DOI: 10.1016/j.infrared.2025.106011

Boheng Tian , Zhiming Lu , Chen Zhang , Haiyan Li , Pengfei Yu

{"title":"MSMD-YOLO: Multi-scale and multi-directional Mamba scanning infrared image object detection based on YOLO","authors":"Boheng Tian , Zhiming Lu , Chen Zhang , Haiyan Li , Pengfei Yu","doi":"10.1016/j.infrared.2025.106011","DOIUrl":"10.1016/j.infrared.2025.106011","url":null,"abstract":"<div><div>Infrared (IR) imaging technology, which operates independently of light and weather conditions and can penetrate clouds and soot, offers unique advantages for object detection. However, detecting objects of varying scales remains a significant challenge due to object size, distance, resolution, and scene complexity differences. To address these challenges, we propose a multi-directional and multi-scale localized feature-enhanced infrared object detection method based on YOLOv7. The proposed model introduces the Mamba module with a selective mechanism and multi-scale feature branching to effectively capture object details at different scales. The S-ELAN module integrates multi-directional scanning with a deep convolutional structure to enhance multi-scale feature extraction. Moreover, the local feature enhancement module expands the receptive field using dilated convolution, improving feature representation through the CBAM attention mechanism. It enhances the model’s semantic understanding of objects. Experimental results on a self-constructed multi-scale infrared object dataset demonstrate that the proposed model adeptly tackles the complexities inherent in detecting objects across various scales. Specifically, experiments on the MSIR dataset revealed an mAP0.5 score of 96.8%, which is 4.4% higher than the baseline model, YOLOv7. Furthermore, on the FLIR public dataset, the proposed model achieves an mAP0.5 score of 86.6%, outperforming YOLOv7 by 4.0%. These findings indicate significant performance improvements over prevalent object detection algorithms, highlighting the model’s effectiveness and strong generalization ability in infrared object detection. The code is available at <span><span>https://github.com/ELF233/MS-MD-YOLO</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106011"},"PeriodicalIF":3.4,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

BiGSAFuse: A Bi-directional guided and saliency-aware adaptive fusion method for infrared and visible images BiGSAFuse：一种双向引导和显著性感知的红外和可见光图像自适应融合方法

IF 3.1 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-07-22 DOI: 10.1016/j.infrared.2025.106012

Shengkun Wu , Lei Deng, Yifan Chen, Mingli Dong, Lianqing Zhu

{"title":"BiGSAFuse: A Bi-directional guided and saliency-aware adaptive fusion method for infrared and visible images","authors":"Shengkun Wu , Lei Deng, Yifan Chen, Mingli Dong, Lianqing Zhu","doi":"10.1016/j.infrared.2025.106012","DOIUrl":"10.1016/j.infrared.2025.106012","url":null,"abstract":"<div><div>Infrared and visible image fusion is commonly employed to improve image detail and enrich information content. In this paper, we propose a novel infrared and visible image fusion method named Bi-directional Guided Saliency-aware Adaptive Fusion (BiGSAFuse). The proposed method incorporates a Multi-Scale Structure-aware Enhancement Module (MSSEM), where a modified Sub-window Variance Filter (SVF) extracts fine, medium, and coarse structural layers with gradient-based adaptive amplification, effectively preserving both thermal targets and fine textures. In addition, we design a Guided Visual Saliency Module (GVSM) that integrates global histogram contrast, local variance, and gradient-based structural guidance to generate precise saliency maps for fusion weight estimation. Furthermore, a bi-directional guided strategy is introduced, where infrared and visible images mutually enhance each other, allowing thermal saliency and visible textures to be simultaneously preserved. A weighted least squares (WLS) filter is adopted to decompose base layers, facilitating structure-preserving fusion. Experimental results show that our proposed method outperforms the current mainstream fusion methods in terms of both visual quality and quantitative performance indicators.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":"150 ","pages":"Article 106012"},"PeriodicalIF":3.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0