Algorithms for radar imaging of the underlying surface from aerospace carriers have been synthesized. In doing so, we have considered two possible ways of image reception based on methods of active and passive remote ...
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ISBN:
(纸本)9781665432993
Algorithms for radar imaging of the underlying surface from aerospace carriers have been synthesized. In doing so, we have considered two possible ways of image reception based on methods of active and passive remotesensing. On this basis, a radar complex, which allows forming images proportional to either the specific effective surface scattering or the effective noise temperature of the underlying surface, has been created. The structural scheme of the complex in accordance with both operating modes is developed. The results of radio image simulation are given.
Robust feature matching in multi-temporal remotesensingimages is an essential but difficult task due to certain extent of appearance difference. In this paper, a two-stage line matching method is presented to match ...
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The detection and localization of ships is important and must be accurate and rapid. The Synthetic Aperture Radar (SAR) is optimal for ship detection. Generally, Constant False Alarm Rate (CFAR) algorithms are used to...
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The detection and localization of ships is important and must be accurate and rapid. The Synthetic Aperture Radar (SAR) is optimal for ship detection. Generally, Constant False Alarm Rate (CFAR) algorithms are used to detect ships from a SAR image on the base of satellite remotesensing imaging. However, due to the rapid development of technology, the remotesensing data have shown the features of big-data. The analyze of big-data improves the accuracy and speed of the ship detection. Therefore, Deep Learning (DL) is recommended and exactly the Convolutional Neural Network (CNN) model has greatly improved the static image recognition performance. In this paper, to improve the accuracy and speed of the ship detection from SAR image, we introduce the CFAR-CNN detector. First, after modeling the sea clutter by the Generalized Gamma (GΓ) distribution, a CFAR global detector is applied. Then, to improve the accuracy of the previous results, a CNN local detector is applied. To this end, a real dataset is used to obtain the optimal CNN model. We have shown that this detector is rapid and tends toward ideality.
The number of satellites, equipped with various sensors, aiming to observe agricultural activities have been progressively increasing. Satellite technology advances have enabled the acquisition of multispectral images...
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ISBN:
(纸本)9781665436496
The number of satellites, equipped with various sensors, aiming to observe agricultural activities have been progressively increasing. Satellite technology advances have enabled the acquisition of multispectral images of a region with small temporal intervals. Consequently, changes over a region can be observed, yield forecast can be made and the type of crops can be determined. In this work, it is aimed to classify 13 different crops by processing the multi temporal and multispectral data consisting of surface reflectance values. To this end, a siamese recurrent neural network structure, that processes time series information with deep metric learning approaches and providing easier classification, is proposed. A convolutional neural network that processes the multi temporal and multispectral information like an image is proposed to reduce the effect of class imbalance problem. These models are then combined under an ensemble neural network structure in order to leverage both networks' strengths. The proposed method outperforms other studies on the literature on BreizhCrops dataset.
The proceedings contain 39 papers. The special focus in this conference is on 3D Imaging Technologies-Multidimensional signalprocessing and Deep Learning. The topics include: Appearance Defect Detection of Injection ...
ISBN:
(纸本)9789811633904
The proceedings contain 39 papers. The special focus in this conference is on 3D Imaging Technologies-Multidimensional signalprocessing and Deep Learning. The topics include: Appearance Defect Detection of Injection Parts Based on Deep Learning;thresholding Method for the Sonar image of a Seabed Target Based on Two-Dimensional Renyi's Entropy;noise Reduction in Sonar images of Seabed Targets Based on a Variational Method;sonar image Segmentation of Seabed Targets Using a Variational Approach;balance the Robustness and Invisibility of Digital Watermarking by image Entropy in Multiple Domains;research Progress of Electrical Resistance Tomography;research on Low-Resolution image Matching and Recognition Algorithm Based on Unified Feature Space;research on Realistic Representation Technology in Virtual Environment;intelligent Customer Service Operation Management System Solution Based on Intelligent Voice Analysis;Research Status of Motor imagery EEG signal Based on Deep Learning;research on Car Seat Comfort Evaluation System Based on Chinese Population;research on Building Extraction from High-Resolution remotesensingimage Based on Improved U-Net;a Survey of image Classification Algorithms Based on Graph Neural Networks;an Improved Method of Non-local Means Denoising Based on Histogram;short-Term Traffic Volume Prediction Based on Gray Wolf Optimization Algorithm;Biological Particle Recognition Based on BP Neural Network Algorithm;imageCube: A Low-Cost 6D Controller with Smooth Tracking for Mobile Augmented Reality;A Clinical Decision-Making System for COVID-19;License Plate Recognition System Based on OpenCV;LUCC and Landscape Pattern Variation in the Lower Tarim River by remotesensing;image Recognition Based on Super-Resolution Wasserstein Generative Adversarial Nets with Gradient Penalty.
Nowadays, there is an increasing demand for wild searching and nature reserve monitoring in nighttime environment. Combined with the advantages of thermal infrared (TIR) imaging technology and the flexibility of unman...
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Water, as an important resource, is critical to sensible development. For the benefits of the climate and humanity, the scenario with water assets needs to be assessed precisely. However, it is miles exceptionally tro...
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The proceedings contain 239 papers. The topics discussed include: single-channel speech enhancement using multi-task learning and attention mechanism;KL divergence based objective state selection method for EW conflic...
ISBN:
(纸本)9780738133737
The proceedings contain 239 papers. The topics discussed include: single-channel speech enhancement using multi-task learning and attention mechanism;KL divergence based objective state selection method for EW conflict;semi-supervised anomaly detection and location based on generative adversarial network;high resolution imaging of GEO SAR under the influence of terrain elevation;research on hand soft rehabilitation system based on brain-computer interface and virtual reality;use of depth completion and SLAM algorithm to build dense maps of large scenes;efficient FFT based multi-source DOA estimation for ULA;Pivot-V: an optimized algorithm for password generation in PCFGs model;a co-simulation method of polarization imaging for temporary birefringent materials;and a two-stage line matching method for multi-temporal remotesensingimages.
remotesensingimages have the characteristics of complex backgrounds, high resolution, and small targets. Although the existing object detection algorithms can improve the detection accuracy, there are generally prob...
remotesensingimages have the characteristics of complex backgrounds, high resolution, and small targets. Although the existing object detection algorithms can improve the detection accuracy, there are generally problems such as a large number of model parameters, high computational cost, and poor real-time performance. Aiming at the above problems, this paper designs a lightweight object detection algorithm GSC-YOLO based on YOLOv4 to achieve fast and accurate detection of remotesensingimages. First, Ghostnet is used as the feature extraction network of GSC-YOLO to reduce the number of parameters and improve the detection speed; Secondly, the improved shuffle attention mechanism is introduced in the prediction head to make the model pay attention to important information and improve the detection accuracy; Finally, the Confidence Propagation Cluster algorithm CP-Cluster is used to post-process the prediction frame to improve the object recognition. Taking the preprocessed DOTA dataset as the experimental object, the experimental results show that the GSC-YOLO algorithm has a detection accuracy of 93.44%, a detection speed of 58 frames per second, and a model size of 43.65MB. Compared with the remotesensingimage object detection algorithm based on YOLOv4, the detection accuracy is increased by 3.93%, the detection speed is increased by 1.87 times, and the model size is reduced by 5.62 times, which is more suitable for deployment on devices with limited resources.
An active lidar detector for range-gated imaging is employed on geostationary satellites to suppress the image noise caused by backscattered light by controlling the on and off times of the receiving system cameras. T...
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