Guohua Gu
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View article: Infrared Small Target Detection Based on Approximate Background Regularization and Bimodal Slice Based Graph Constraints
Infrared Small Target Detection Based on Approximate Background Regularization and Bimodal Slice Based Graph Constraints Open
Low-rank decomposition models excel in small target detection due to their strong background separation. However, most of the existing methods face real-time processing challenges due to the high cost of singular value decomposition and ad…
View article: Simulation of infrared polarized radiation transmission characteristics of high-temperature tail flame based on Monte Carlo method
Simulation of infrared polarized radiation transmission characteristics of high-temperature tail flame based on Monte Carlo method Open
Infrared polarization radiation of aircraft targets after being transmitted through high-temperature exhaust plumes is an important basis for infrared detection equipment to detect, identify, track and warn aircraft. At present, most of th…
View article: Short-wavelength-infrared upconversion edge enhancement imaging based on a Laguerre-Gaussian composite vortex filter
Short-wavelength-infrared upconversion edge enhancement imaging based on a Laguerre-Gaussian composite vortex filter Open
Edge-enhanced imaging by spiral phase contrast has proven instrumental in revealing phase or amplitude gradients of an object, with notable applications spanning feature extraction, target recognition, and biomedical fields. However, syste…
View article: Scene-Based Nonuniformity Correction Method Using Principal Component Analysis for Infrared Focal Plane Arrays
Scene-Based Nonuniformity Correction Method Using Principal Component Analysis for Infrared Focal Plane Arrays Open
In this paper, principal component analysis is introduced to form a scene-based nonuniformity correction method for infrared focal plane arrays. The estimation of the gain and offset of the infrared detector and the correction of nonunifor…
View article: Infrared Ship Target Detection Based on Dual Channel Segmentation Combined with Multiple Features
Infrared Ship Target Detection Based on Dual Channel Segmentation Combined with Multiple Features Open
In infrared images of the sea surface, apart from the complex background of the sea surface, there are often sky and island backgrounds. The disturbances caused by sea wind and the reflection of intense sunlight on the sea surface increase…
View article: Real-infraredSR: real-world infrared image super-resolution via thermal imager
Real-infraredSR: real-world infrared image super-resolution via thermal imager Open
Infrared image super-resolution technology aims to overcome the pixel size limitation of the infrared focal plane array for higher resolution images. Due to the real-world images with different resolutions having more complex degradation p…
View article: Twofold Structured Features-Based Siamese Network for Infrared Target Tracking
Twofold Structured Features-Based Siamese Network for Infrared Target Tracking Open
Nowadays, infrared target tracking has been a critical technology in the field of computer vision and has many applications, such as motion analysis, pedestrian surveillance, intelligent detection, and so forth. Unfortunately, due to the l…
View article: Present Situation and Prospect of Comprehensive Utilization of Phosphogypsum
Present Situation and Prospect of Comprehensive Utilization of Phosphogypsum Open
Phosphogypsum is a by-product of the wet process of phosphoric acid production. Although the main component of phosphogypsum is calcium sulfate, it also contains a variety of impurities harmful to the environment. How to economically and c…
View article: Synergetic improvement of the thermal conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites by interleaving <scp>BN</scp>@<scp>ZnO</scp> particles
Synergetic improvement of the thermal conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites by interleaving <span>BN</span>@<span>ZnO</span> particles Open
Synergetic improvement of the thermal conductivity and interlaminar fracture toughness of carbon fiber/epoxy resin composites (CF/EP) is a challenging research job. In this work, hexagonal boron nitride coated ZnO (BN@ZnO) particles were f…
View article: A Small Target Detection Method for Sea Surface Based on Guided Filtering and Local Mean Gray Difference
A Small Target Detection Method for Sea Surface Based on Guided Filtering and Local Mean Gray Difference Open
The traditional small target detection algorithm often results in a high false alarm rate on the sea surface background. To address this issue, a small target detection method based on guided filtering and local average gray level differen…
View article: A Universal Phase Error Analysis for Optical Frequency Tuning Lasers Utilized in Fiber Sensing with OFDR
A Universal Phase Error Analysis for Optical Frequency Tuning Lasers Utilized in Fiber Sensing with OFDR Open
As optical fiber sensing has attracted increasing attention due to its advantages such as high accuracy, low costs, and stability, its optical source judgment has become an attractive issue by which to characterize its performance. Optical…
View article: Compressive Bidirectional Reflection Distribution Function-Based Feature Extraction Method for Camouflaged Object Segmentation
Compressive Bidirectional Reflection Distribution Function-Based Feature Extraction Method for Camouflaged Object Segmentation Open
Camouflaged target segmentation has been widely used in both civil and military applications, such as wildlife behaviour monitoring, crop pest control, and battle reconnaissance. However, it is difficult to distinguish camouflaged objects …
View article: Active non-uniform illumination-based underwater polarization imaging method for objects with complex polarization properties
Active non-uniform illumination-based underwater polarization imaging method for objects with complex polarization properties Open
Active polarization imaging is one of the most effective underwater optical imaging methods that can eliminate the degradation of image contrast and clarity caused by macro-molecule scattering. However, the non-uniformity of active illumin…
View article: Dynamic mutation enhanced greedy strategy for wavefront shaping
Dynamic mutation enhanced greedy strategy for wavefront shaping Open
Optical focusing through scattering media has important implications for optical applications in medicine, communications, and detection. In recent years, many wavefront shaping methods have been successfully applied to the field, among wh…
View article: Time-space united coding spread spectrum single photon counting imaging method
Time-space united coding spread spectrum single photon counting imaging method Open
In this paper, we demonstrate a new imaging architecture called time-space united coding spread spectrum single photon counting imaging technique by combining the space coding based single-pixel imaging technology and spread spectrum time …
View article: Fast optical refocusing through multimode fiber bend using Cake-Cutting Hadamard encoding algorithm to improve robustness
Fast optical refocusing through multimode fiber bend using Cake-Cutting Hadamard encoding algorithm to improve robustness Open
Multimode fibres offer the advantages of high resolution and miniaturization over single mode fibers in the field of optical imaging. However, multimode fibre's imaging is susceptible to perturbations of MMF that can lead to secondary spat…
View article: Pseudo-Random Spread Spectrum Technique Based Single-Pixel Imaging Method
Pseudo-Random Spread Spectrum Technique Based Single-Pixel Imaging Method Open
With the increasing interest in autonomous transport, machine vision and remote sensing, several three-dimensional time-of-flight (ToF) imaging technologies that can recover object's fine details have been presented. Single-pixel imaging p…
View article: Target localization based on cross-view matching between UAV and satellite
Target localization based on cross-view matching between UAV and satellite Open
Matching remote sensing images taken by an unmanned aerial vehicle (UAV) with satellite remote sensing images with geolocation information. Thus, the specific geographic location of the target object captured by the UAV is determined. Its …
View article: Infrared Ocean Image Simulation Algorithm Based on Pierson–Moskowitz Spectrum and Bidirectional Reflectance Distribution Function
Infrared Ocean Image Simulation Algorithm Based on Pierson–Moskowitz Spectrum and Bidirectional Reflectance Distribution Function Open
Infrared ocean image simulation has been widely used in water-pollution prevention, meteorological observation and melting-ice monitoring. However, in actual remote sensing observation scenes, the simulation images provided by conventional…
View article: Study of Reagent Scheme, Entrainment and Their Relationship in Chalcopyrite Flotation in the Presence of Bentonite and Kaolinite
Study of Reagent Scheme, Entrainment and Their Relationship in Chalcopyrite Flotation in the Presence of Bentonite and Kaolinite Open
Entrainment has been considered as an important factor affecting clayey ore flotation. In this study, the effect of reagent dosage on chalcopyrite flotation in the presence of bentonite and kaolinite was investigated through entrainment. I…
View article: Frequency upconversion imaging based on Hadamard coding
Frequency upconversion imaging based on Hadamard coding Open
A frequency upconversion imaging based on Hadamard coding is presented to remove the distorting effect on condition that the pump beam is tightly focused to optimize the conversion efficiency. The distortion caused by the convolution betwe…
View article: Bioleaching and Electrochemical Behavior of Chalcopyrite by a Mixed Culture at Low Temperature
Bioleaching and Electrochemical Behavior of Chalcopyrite by a Mixed Culture at Low Temperature Open
Low-temperature biohydrometallurgy is implicated in metal recovery in alpine mining areas, but bioleaching using microbial consortia at temperatures <10°C was scarcely discussed. To this end, a mixed culture was used for chalcopyrite bi…
View article: Multi-layer optical Fourier neural network based on the convolution theorem
Multi-layer optical Fourier neural network based on the convolution theorem Open
To take full advantage of the application of neural networks to optical systems, we design an optical neural network based on the principle of free-space optical convolution. In this article, considering the need for a high-power light sou…
View article: Research progress in optical neural networks: theory, applications and developments
Research progress in optical neural networks: theory, applications and developments Open
With the advent of the era of big data, artificial intelligence has attracted continuous attention from all walks of life, and has been widely used in medical image analysis, molecular and material science, language recognition and other f…
View article: Multi-Feature Driven Active Contour Segmentation Model for Infrared Image With Intensity Inhomogeneity
Multi-Feature Driven Active Contour Segmentation Model for Infrared Image With Intensity Inhomogeneity Open
Active contour model (ACM) is one of the most widely used image segmentation tools at present, but the existing methods only utilize single feature information of image to minimize the energy function, which is easy to cause false segmenta…