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HSI-MFormer: Integrating Mamba and Transformer Experts for Hyperspectral Image Classification

IEEE Transactions on Geoscience and Remote Sensing 2025年 63卷

作者： He, Yan Tu, Bing Liu, Bo Li, Jun Plaza, Antonio Institute of Optics and Electronics State Key Laboratory Cultivation Base of Atmospheric Optoelectronic Detection and Information Fusion Jiangsu International Joint Laboratory on Meteorological Photonics and Optoelectronic Detection Jiangsu Engineering Research Center for Intelligent Optoelectronic Sensing Technology of Atmosphere Nanjing University of Information Science and Technology Nanjing210044 China China University of Geosciences Faculty of Computer Science Wuhan430074 China University of Extremadura Hyperspectral Computing Laboratory Department of Technology of Computers and Communications Escuela Politecnica 10003 Spain

Hyperspectral image (HSI) classification is fundamental to numerous remote sensing applications, enabling detailed analysis of material properties and environmental conditions. Recent Mamba built upon selective state space models (SSMs) (S6) have demonstrated exceptional advantages in long-range sequence modeling with linear computational efficiency, while Transformer based on self-attention mechanisms is particularly adept at capturing short-range dependencies. To leverage the complementary strengths of these models, this article introduces a novel hybrid Mamba-Transformer framework (HSI-MFormer), effectively exploring the multiscale properties of hyperspectral data for HSI classification. Initially, a multiscale token generation (MTG) module is developed, which converts the HSI cube into multiple spatial-spectral token groups across different scales. To adequately capture fine-grained multiscale spatial-spectral patterns, an inner-scale transformer expert (ITE) is designed, which incorporates grouped self-attention operations to perform short-range sequence modeling within token groups at each scale. Meanwhile, a cross-scale Mamba expert (CME) is introduced, which integrates a cross-scale serialization mechanism and bidirectional Mamba block for long-range sequence modeling, further exploring the interactions and complementarity between token groups across different scales. Several hybrid strategies for integrating the ITE and CME are investigated to maximize their complementarity, including parallel, interval, and serial structures. Extensive experiments demonstrate that the proposed HSI-MFormer significantly outperforms the state-of-the-art Transformer-based and Mamba-based HSI classification methods. © 1980-2012 IEEE.

关键词： Image classification

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Numerical Investigation of 2 μm all Polarizationmaintaining Mode-Locked Fiber Laser 22

Numerical Investigation of 2 μm all Polarizationmaintaining...

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22nd International Conference on Optical Communications and Networks, ICOCN 2024

作者： Yuan, Zirui Tang, Huiting Wang, Yanchuang Feng, Ni Zhou, Renlai Ministry Education of China Harbin Engineering University Key Laboratory of In-Fiber Integrated Optics Harbin150001 China Ministry of Industry and Information Technology Harbin Engineering University Key Laboratory of Photonic Materials and Devices Physics for Oceanic Applications Harbin150001 China College of Physics and Optoelectronic Engineering Harbin Engineering University Harbin150001 China

Ultrafast 2 μm all polarization-maintaining figure-9 thulium-doped fiber laser is numerically investigated, and the mode-locking operation region in a weak asymmetrical structure is analyzed that is consistent with t... 详细信息

ISBN: (纸本)9798350367652

关键词： Fiber lasers

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Solution Processing of Cross-Linked Porous Organic Polymers

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Accounts of Materials Research 2022年第10期3卷 1049-1060页

作者： Lingling Wang Yan Su Cheng Gu State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSouth China University of TechnologyGuangzhou 510640P.R.China Science Center for Material Creation and Energy Conversion Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237P.R.China State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices and Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSouth ChinaUniversity of TechnologyGuangzhou 510640P.R.China

CONSPECTUS:Porous organic polymers(POPs),essentially including polymers with intrinsic microporosity(PIMs),conjugated microporous polymers(CMPs),covalent organic frameworks(COFs),hyper-cross-linked polymers(HCPs)and so on,have recently attracted broad interest in many application areas because of their structural diversity and functional ***,except for linear PIMs that can dissolve in organic solvents for solution processing into membranes,most POPs are highly cross-linked(hereafter termed CPOPs)and are synthesized as insoluble and unprocessable powders,which prevent CPOPs in many applications.

关键词： Porous hereafter porosity

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GeSn 320 × 256 Focal Plane Array for Silicon-Based Short-wave Infrared Imaging

GeSn 320 × 256 Focal Plane Array for Silicon-Based Short-wa...

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2025 IEEE Silicon Photonics Conference, SiPhotonics 2025

作者： Xu, Guoyin Cong, Hui Li, Yue Wu, Zhengjie Fu, Fenghe Xu, Chi Xue, Chunlai Chinese Academy of Sciences Key Laboratory of Optoelectronic Materials and Devices Institute of Semiconductors Beijing100083 China University of Chinese Academy of Sciences College of Materials Science and Opto-Electronic Technology Beijing100049 China

In this work, a high-performance 320×256 focal plane array based on group-IV semiconductors has been manufactured on a Si substrate using Ge0.9Sn0.1 film as absorption material. With the help of the read-out circ... 详细信息

ISBN: (纸本)9798331506186

关键词： IV-VI semiconductors

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Achieving Bright Organic Light-Emitting Field-Effect Transistors with Sustained Efficiency through Hybrid Contact Design

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ACS Applied Materials and Interfaces 2023年第25期15卷 30524-30533页

作者： Chiu, Shih-Wei Hsu, An Ying, Lei Liaw, Yong-Kang Lin, Kun-Ta Ruan, Jrjeng Samuel, Ifor D. W. Hsu, Ben B. Y. Department of Materials Science and Engineering National Cheng Kung University Tainan70101 Taiwan Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou510640 China Organic Semiconductor Centre SUPA School of Physics and Astronomy University of St Andrews St AndrewsKY16 9SS United Kingdom

Organic light-emitting field-effect transistors (OLEFETs) with bilayer structures have been widely studied due to their potential to integrate high-mobility organic transistors and efficient organic light-emitting diodes. However, these devices face a major challenge of imbalance charge transport, leading to a severe efficiency roll-off at high brightness. Here, we propose a solution to this challenge by introducing a transparent organic/inorganic hybrid contact with specially designed electronic structures. Our design aims to steadily accumulate the electrons injected into the emissive polymer, allowing the light-emitting interface to effectively capture more holes even when the hole current increases. Our numerical simulations show that the capture efficiency of these steady electrons will dominate charge recombination and lead to a sustained external quantum efficiency of 0.23% over 3 orders of magnitude of brightness (4 to 7700 cd/m2) and current density (1.2 to 2700 mA/cm2) from −4 to −100 V. The same enhancement is retained even after increasing the external quantum efficiency (EQE) to 0.51%. The high and tunable brightness with stable efficiency offered by hybrid-contact OLEFETs makes them ideal light-emitting devices for various applications. These devices have the potential to revolutionize the field of organic electronics by overcoming the fundamental challenge of imbalance charge transport. © 2023 American Chemical Society.

关键词： Luminance

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Numerical and Experimental Investigations of Versatile Soliton Molecules in an All-Polarization-maintaining figure-9 fiber laser 22

Numerical and Experimental Investigations of Versatile Solit...

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22nd International Conference on Optical Communications and Networks, ICOCN 2024

作者： Tang, Huiting Wang, Yanchuang Yuan, Zirui Feng, Ni Zhou, Renlai Harbin Engineering University Key Laboratory of In-Fiber Integrated Optics Ministry Education of China Harbin150001 China Ministry of Industry and Information Technology Harbin Engineering University Key Laboratory of Photonic Materials and Devices Physics for Oceanic Applications Harbin150001 China College of Physics and Optoelectronic Engineering Harbin Engineering University Harbin150001 China

Soliton molecules evolution is numerically and experimentally investigated in an all-polarization-maintaining figure-9 fiber laser, soliton molecules in different bound states can be regulated by changing the small si... 详细信息

ISBN: (纸本)9798350367652

关键词： Fiber lasers

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Switchable hidden spin polarization and negative Poisson's ratio in two-dimensional antiferroelectric wurtzite crystals

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Journal of Semiconductors 2023年第12期44卷 72-80页

作者： Zhuang Ma Jingwen Jiang Gui Wang Peng Zhang Yiling Sun Zhengfang Qian Jiaxin Zheng Wen Xiong Fei Wang Xiuwen Zhang Pu Huang Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China School of Advanced Materials Peking UniversityShenzhen Graduate SchoolShenzhen 518055China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Renewable and Sustainable Energy Institute University of ColoradoBoulderColorado 80309USA

Two-dimensional(2D)antiferroelectric materials have raised great research interest over the last ***,we reveal a type of 2D antiferroelectric(AFE)crystal where the AFE polarization direction can be switched by a certain degree in the 2D *** 2D functional materials are realized by stacking the exfoliated wurtzite(wz)monolayers with“self-healable”nature,which host strongly coupled ferroelasticity/antiferroelectricity and benign *** AFE candidates,i.e.,Zn X and Cd X(X=S,Se,Te),are all semiconductors with direct bandgap atΓpoint,which harbors switchable antiferroelectricity and ferroelasticity with low transition barriers,hidden spin polarization,as well as giant in-plane negative Poisson's ratio(NPR),enabling the co-tunability of hidden spin characteristics and auxetic magnitudes via AFE *** 2D AFE wz crystals provide a platform to probe the interplay of 2D antiferroelectricity,ferroelasticity,NPR,and spin effects,shedding new light on the rich physics and device design in wz semiconductors.

关键词： wurtzite crystal multiferroics hidden spin polarization negative Poisson's ratio

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Research on Instrument Image Generation Method Based on Conditional Generative Adversarial Network 2021

Research on Instrument Image Generation Method Based on Cond...

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7th International Conference on Computing and Artificial Intelligence, ICCAI 2021

作者： Geng, Lei Zhang, Yanyan Xiao, Zhitao Yan, Fengfeng School of Life Sciences TianGong University Tianjin Key Laboratory of Optoelectronic Detection Technology and System Tianjin300387 China School of Electronics and Information Engineering Tiangong University Tianjin Key Laboratory of Optoelectronic Detection Technology and System Tianjin300387 China

ISBN: (纸本)9781450389501

In recent years, generative adversarial networks have achieved great success in image *** have amazing ability to generate clear and realistic images. However, as we all know, GAN networks are difficult to adapt to different data sets, for example, in the process of image coding, the images of instrument are complex, instrument characters vary in size, and characters of different sizes need different receptive fields, so new requirements are put forward for the GAN networks. In this paper, we propose UYF-Net, an instrument image generator network, to solve this *** network uses Y-Fusion module many times, and fuses high-level and low-level semantic features according to the importance of each channel. Experiments show that the network achieves better performance in Mish activation function, mixed loss function of L1 with MS-SSIM and LayerNormal normalization. © 2021 ACM.

关键词： Generative adversarial networks

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One-decoy-state quantum key distribution with advantage distillation based on planar-lightwave-circuit-integration modules

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Physical Review A 2025年第1期111卷 012608-012608页

作者： Jiali Zhu Xingyu Zhou Huajian Ding Jingyang Liu Chunhui Zhang Jian Li Junming An Qin Wang Institute of Quantum Information and Technology Nanjing University of Posts and Telecommunications Nanjing 210003 China Key Laboratory of Optoelectronic Materials and Devices Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China

Photonics integrated circuits provide a stable, compact and robust platform for the implementation of quantum key distribution (QKD), which can generate information-theoretic secure keys between distant parties. Here, we present a high-speed QKD tests with silica planar lightwave circuits based asymmetric Mach-Zehnder interferometer modules. To further enhance system performance and reduce system complexity, we employ the advantage distillation (AD) algorithm alongside the one-decoy method. The AD algorithm can effectively extract strongly correlated bit pairs from weakly correlated bit pairs, thereby significantly improving the key rate over long distances, where traditional post-processing methods fail to generate keys. With a clock rate of 625 MHz, our system achieves composable secret key rates of 3.32 Mbps at 2 dB loss and 1.85 kbps at 18 dB loss, respectively. These results represent the first experimental validation of AD algorithm, and pave the way for the development of QKD networks with photonic integration.

关键词： Mach-Zehnder interferometers

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Multiferroicity and giant in-plane negative Poisson’s ratio in wurtzite monolayers

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npj Computational Materials 2022年第1期8卷 489-499页

作者： Zhuang Ma Pu Huang Jin Li Peng Zhang Jiaxin Zheng Wen Xiong Fei Wang Xiuwen Zhang Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen University518060ShenzhenChina School of Advanced Materials Peking UniversityShenzhen Graduate School518055ShenzhenChina Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences400714ChongqingChina School of Physics and Microelectronics Zhengzhou University450001ZhengzhouChina

Monolayers of layered materials,such as graphite and molybdenum dichalcogenides,have been the focus of materials science in the last ***,we reveal benign stability and intriguing physical properties in the thinnest monolayer wurtzite(wz)semiconductors,which can be exfoliated from their bulk and stacked to reform the wz *** candidate ZnX and CdX(X=S,Se,Te)monolayers possess low cleavage energy and direct bandgaps,which harbor strongly coupled ferroelectricity and ferroelasticity with low transition barriers,giant in-plane negative Poisson’s ratio,as well as giant Rashba spin splitting,enabling the co-tunability of spin splitting and auxetic magnitudes via multiferroic *** wz monolayers can be used as building blocks of devices structures,due to their inherent“self-healable”capacity,which offer more flexibility for semiconductor fabrication and provide a natural platform to probe the interplay of multiple physical effects,bringing light into the rich physics in tetrahedral semiconductors.

关键词： plane splitting molybdenum

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