remotesensingimage often suffers from the common problems of stripe noise and random noise. In this paper, we present a destriping method with unidirectional gradient L0 norm and L0 sparsity priori. The major novelt...
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ISBN:
(纸本)9781479983391
remotesensingimage often suffers from the common problems of stripe noise and random noise. In this paper, we present a destriping method with unidirectional gradient L0 norm and L0 sparsity priori. The major novelty of the proposed method is that combining the unidirectional gradient L0 norm with the sparsity priori to address the destriping and denoising issues. Moreover, doubly augmented Lagrangian (DAL) method is adopted to solve the L0 regularized minimization problem. The proposed method is verified on heavily striped remotesensingimages. Comparative results demonstrate that the proposed method outperforms the-state-of-art methods, which can suppress noise effectively as well as preserve image structures well.
In this paper, we present a method to detect changes in high resolution remotesensingimages based on superparsing proposed by Tighe et al. By comparing with several superpixel segmentation methods, we choose the SLI...
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ISBN:
(纸本)9781479921867
In this paper, we present a method to detect changes in high resolution remotesensingimages based on superparsing proposed by Tighe et al. By comparing with several superpixel segmentation methods, we choose the SLIC (Simple Linear Iterative Clustering) method which can keep image boundary, produce consistent superpixels with similar size and shape, and also calculates fast. After superpixel segmentation, we obtain the category of each pixel in remotesensingimages by using superparsing, therefore we can find change areas easily by comparing their category labels directly. Experiments on two Geo-Eye1 high-resolution remotesensingimages demonstrate the effectiveness of our proposed change detection method.
The thirteen papers in this special section were presented at the 9th International Workshop on the Analysis of Multitemporal remotesensingimages (MultiTemp 2017), hosted by VITO remotesensing on June 27-29, 2017.
The thirteen papers in this special section were presented at the 9th International Workshop on the Analysis of Multitemporal remotesensingimages (MultiTemp 2017), hosted by VITO remotesensing on June 27-29, 2017.
The high-precision remote sensors on satellite provide massive image data which brings new challenges to data processing and interpretation. The existing data processing systems are mostly semi-automatic which have th...
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ISBN:
(纸本)9789811075216;9789811075209
The high-precision remote sensors on satellite provide massive image data which brings new challenges to data processing and interpretation. The existing data processing systems are mostly semi-automatic which have the problems as low efficiency and low interpretation quality. This paper designs and implements a ground test system for processing and interpreting remotesensingimages automatically and efficiently. The system introduces a two-step feature parameter correlation calculation algorithm to interpret the images. The authors realize the system based on the structure of universal server + FPGA which capabilities can achieve a processing rate of tens of gigabit per second.
Due to the labor cost and the accuracy of manual identification, it is very difficult to make a strong label dataset of remotesensingimages with a large amount of data. Therefore, the limited remotesensing dataset ...
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ISBN:
(纸本)9781728198354
Due to the labor cost and the accuracy of manual identification, it is very difficult to make a strong label dataset of remotesensingimages with a large amount of data. Therefore, the limited remotesensing dataset has become a research hotspot in recent years. However, due to insufficient precision and the lack of label accuracy, these methods often have insufficient expression ability. In this paper, we proposed a semantic segmentation method for remotesensingimages by progressive refinement learning. Firstly, we construct multiple classification networks to vote for label noise cleaning, and select a network to retrain. Then, the method based on hierarchical feature learning is used to realize the pixel-level pseudo label calculation. Secondly, we proposed to construct feature interactive fusion module in the multi-level codec to achieve image group semantic segmentation. Comprehensive evaluations and the comparison with 7 methods validate the superiority of the proposed model.
Recently sparse signal re presentation of image patches was explored to solve the pan-sharpening problem for remotesensingimages. Although the proposed sparse reconstruction based methods lead to motivating results,...
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ISBN:
(纸本)9781467358057
Recently sparse signal re presentation of image patches was explored to solve the pan-sharpening problem for remotesensingimages. Although the proposed sparse reconstruction based methods lead to motivating results, yet none of them has considered the fact that the information contained in different multispectral channels may be mutually correlated. In this paper, we extend the Sparse Fusion of images (SparseFI, pronounced "sparsify") algorithm, proposed by the authors before, to a Jointly Sparse Fusion of images (J-SparseFI) algorithm by exploiting these possible signal structural correlations between different multispectral channels. This is done by making use of the distributed compressive sensing (DCS) theory that restricts the solution of an underdetermined system by considering an ensemble of signals being jointly sparse. The algorithm is validated with UltraCam data. In the final presentation, results with Hyspex data will be presented.
Since Professor Siwen Bi proposed quantum remotesensing (QRS) in early 2001, the first QRS imaging prototype was developed after many stages of researches. Based on the results, our group has also undertaken in-depth...
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ISBN:
(数字)9781510629509
ISBN:
(纸本)9781510629509
Since Professor Siwen Bi proposed quantum remotesensing (QRS) in early 2001, the first QRS imaging prototype was developed after many stages of researches. Based on the results, our group has also undertaken in-depth theoretical and algorithmic experiments on QRS imageprocessing. It's both a quantum system simulation algorithm, preparing for the future quantum physical devices and calculation technology, and an expansion of quantum theories to RS imageprocessing fields. It combines quantum mechanics theory and RS imageprocessing technology, which introduces a new research direction for RS imageprocessing technology. Now our researches achievements include a quantum denoising algorithm theory and simulation, a quantum enhancement algorithm theory and simulation, and a quantum segmentation algorithm theory research and simulation. A RS denoising algorithm based on the quantum-inspired concept is proposed for image denoising. Key benefits of the algorithm, which include improvements in transmission and accuracy, are demonstrated experimentally. Experiments showed that the peak signal to noise ratio (PSNR) for the proposed algorithm is improved by over 2dB and the edge retention index (EPI) is 0.1 higher than that for common methods. Given the low contrast ratio and brightness as well as insufficient detail for some RS images, a quantum algorithm based on the combination of a quantum inspired and unsharp masking to enhance and segment the RS image data was proposed. Results showed that the contrast ratio and brightness of images processed by the quantum algorithm improved, the image entropy and peak signal to noise ratio is higher.
To efficiently remove haze in unmanned aerial vehicle (UAV) remotesensingimages, a novel attention-based feedback dehazing network (AFDN) is proposed, which is constructed by feedback connections and attention-based...
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ISBN:
(纸本)9781665441155
To efficiently remove haze in unmanned aerial vehicle (UAV) remotesensingimages, a novel attention-based feedback dehazing network (AFDN) is proposed, which is constructed by feedback connections and attention-based feedback blocks (AFBs). It has three major advantages compared with other dehazing algorithms: 1) The feedback connections, which allow network to use previous state to improve current performance, can effectively help the proposed AFDN generate clear remotesensing scenes progressively. 2) The AFBs are specially designed to extract global residual features, in which the dual attention block can usefully reduce redundant information and improve the fitting ability of network. 3) To obtain abundant texture information from UAV remotesensingimages and restore real ground surfaces, an energy loss is employed for texture features learning. Experiments on synthetic datasets and real UAV remotesensingimages verify the superiority of AFDN over several state-of-the-art methods in terms of qualitative and quantitative analysis.
This paper commits to remove the stripe noise to enhance the visual quality of remotesensingimages, in the meanwhile preserves image details of stripe-free regions. Instead of solving the underlying image as most of...
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ISBN:
(纸本)9781509021758
This paper commits to remove the stripe noise to enhance the visual quality of remotesensingimages, in the meanwhile preserves image details of stripe-free regions. Instead of solving the underlying image as most of researches, we propose a non-convex l(0) model for remotesensingimage destriping by taking full consideration of the intrinsically directional and structural priors of stripe noise. Moreover, the proposed non convex model can be solved by the proximal alternating direction method of multipliers (PADMM) method which theoretically guarantees converging to a KKT point. Extensively experimental results on simulated and real data demonstrate that the proposed method outperforms recent state-of-the-art destriping methods, both visually and quantitatively.
Single image Super-Resolution (SISR) based on deep learning methods has been widely studied for applications on remotesensingimages. With limited remotesensingimages, most of the existing SISR methods simply adopt...
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ISBN:
(纸本)9781728198354
Single image Super-Resolution (SISR) based on deep learning methods has been widely studied for applications on remotesensingimages. With limited remotesensingimages, most of the existing SISR methods simply adopt the regular data augmentation approaches (such as flip) in natural images to improve model performance. Considering the fact that remotesensingimages are all taken from a bird's-eye view and objects appear in multiple directions, we first introduce rotation augmentation method in remotesensingimages to promote diversity of samples dramatically, as rotation does not cause semantic problems like people standing upside down in natural images. However, image rotation at various angles implemented by interpolation will cause the inconsistent pixel distribution problem for the pixel level task. Thus, we propose Transformation Consistency Loss Function (TCLF) to narrow the gap between the augmented and original distribution, while expanding the feature space with rotation augmentation method. Extensive experiments are performed on UC-Merced Land-use dataset of 21 remotesensing scenes, and the results as well as ablation studies demonstrate our proposed method outperforms mainstream methods.
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