In recent years, there has been a significant amount of interest in Query By image Content retrieval (QBIC). CBIR is a technique for getting images comparable to the image given as a query from a huge database. In the...
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In recent years, there has been a significant amount of interest in Query By image Content retrieval (QBIC). CBIR is a technique for getting images comparable to the image given as a query from a huge database. In the context of image retrieval, CBIR is more similar to human semantics. In addition to medical imaging, surveillance, weather forecasting, crime prevention, and remotesensing, the CBIR technique is used in a variety of fields. This context refers to content as the visual information in images, like texture, shape, and color. In comparison to text-based image retrieval, image content contains more information for efficient retrieval. In this study, we used Python to implement CBIR algorithms such as SVM and DT and compared their accuracy.
remotesensingimage fusion amalgamate information from panchromatic and multispectral remotesensingimages to generate an optimum representative image. In this paper, we have proposed a novel method for image fusion...
remotesensingimage fusion amalgamate information from panchromatic and multispectral remotesensingimages to generate an optimum representative image. In this paper, we have proposed a novel method for image fusion known as Residual Deep Learning with Joint Bilateral Denoising Network (RJB-Net). The RJB-Net procedure is initiated with panchromatic image denoising using a joint bilateral filter to suppress noise and retain edge information. RJB-Net model is trained at image patches covering all major spectral classes. The denoised panchromatic image along with multispectral data is input to the residual deep learning network for inference and generates a fused image. The remotesensing datasets used for RJB-Net training and evaluation are Indian Cartosat-1 panchromatic and Resourcesat-2 multispectral imagery. The experiment section compares the RJB-Net denoising output with prominent spatial domain image filtering methods both qualitatively and quantitatively. It is found that RJB-Net fused images inject the spatial information from panchromatic images in a controlled manner while retaining the spectra characteristics of multispectral data. The merging performance of RJB-Net is compared with state-of-the-art remotesensingimage fusion techniques that range from classical to recent deep learning model. The proposed method RJB-Net generates superior results among all fusion methods at different feature targets and compared the performance both visually as well as with image quality metrics.
SAR imaging is a widely used technique to solve the remotesensing problem. However, the image resolution of traditional imaging methods is limited by signal bandwidth. In order to solve this problem, a new iterative ...
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Deep learning has shown great strength in regions of interest (ROIs) detection for remotesensingimages (RSIs). However, for most of RSIs, the unbalanced distribution of positive and negative samples greatly limits t...
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ISBN:
(纸本)9781728176055
Deep learning has shown great strength in regions of interest (ROIs) detection for remotesensingimages (RSIs). However, for most of RSIs, the unbalanced distribution of positive and negative samples greatly limits the performance of the deep learning-based methods. To cope with this issue, we propose a novel method based on texture guided variational autoencoder-attention wise generative adversarial network (VAE-AGAN) to augment the training data for ROI detection. First, to generate realistic texture details of RSIs, we propose a texture guidance block to embed texture prior information into encoder and decoder networks. Second, we introduce the channel and spatial-wise attention layers in the discriminator construct to adaptively recalibrate the varying importance of different channels and spatial regions of input RSIs. Finally, we apply the RSI dataset balanced by our proposal to the weakly supervised ROI detection method. Experimental results demonstrate that the proposal can not only improve the performance of ROI detection, but also outperform other competing augmentation methods.
Recently, advancements in remotesensing technology have made it easier to obtain various temporal and spatial resolution satellite data. remotesensing techniques can be a useful tool to detect vegetation and soil co...
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Significant technical restrictions, such as limited data storage on the satellite platform in space and limited bandwidth for communication with the ground station, restrict satellite sensors from simultaneously recor...
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Compressed-domain image classification refers to the direct feature extraction of image data in the form of compressed codestream to achieve scene classification tasks. In recent years, image compression based on deep...
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Ghost imaging sparsity constraints (GISC) spectral camera can acquire both spatial and spectral information of surface features, and has significant application prospects in the field of satellite remotesensing. This...
Ghost imaging sparsity constraints (GISC) spectral camera can acquire both spatial and spectral information of surface features, and has significant application prospects in the field of satellite remotesensing. This article uses a planar CCD image sensor for photoelectric detection, and then reconstructs multispectral images through image reconstruction algorithms. The article describes the theoretical foundation, related technologies, and image reconstruction algorithms of GISC. Reconstruct the three-dimensional spectral image of the target through single exposure detection of the speckle field and pre calibrated measurement matrix. The research results have advantages such as high energy utilization rate, fast information acquisition efficiency, and the ability to obtain three-dimensional data information with a single exposure.
During the last few years, remotesensing is considerably used for Earth observation for the environment and sustainable development. The temporal classes of satellite images provide better information for monitoring ...
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ISBN:
(数字)9798350309249
ISBN:
(纸本)9798350309256
During the last few years, remotesensing is considerably used for Earth observation for the environment and sustainable development. The temporal classes of satellite images provide better information for monitoring the earth's surface at different scales; therefore these images are becoming a very relevant opportunity of investigating. The numerical analyses of imageprocessing are based on the artificial intelligence (AI) tool rather than the traditional methods. The environmental indicators from these images offer very important statistics, the carried out work of dynamic phenomena, the observation event and interpretation of evolving circumstances like: atmospheric conditions, crises and natural disasters taking the opportunity to be studied, several problems come out of deforestation and monitoring of water resources (water bodies). The purpose of this study is focused on drawing out details from the database used and then to give an offer for a texture analysis strategy. Firstly, using specific development and then developing the existing software in the second hand. This work is to establish an algorithm for the detection of region of interest (water body) which is based on the theory of fuzzy logic and the hypothesis of Fuzzy C-Means.
VHR remotesensingimages have abundant ground features and details, but it is a great challenge for machine understanding. The "same object with different spectral" problem caused by environment changes, su...
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VHR remotesensingimages have abundant ground features and details, but it is a great challenge for machine understanding. The "same object with different spectral" problem caused by environment changes, such as seasonal alternation, bad weather and shadow, is the biggest challenge in multitemporal image change detection, which is more prominent in VHR images. For this problem, a novel difference guided VHR image change detection (DGCD) method is proposed in this paper. In the feature learning stage of DGCD model, difference features are used to guide the feature extraction to suit with the change detection task. In order to make the model focus on the change features, both of the spatial and channel attention mechanism are introduced. Finally, for the edge region of VHR image which is hard to be discriminated, a new edge enhanced loss function based on BCL loss is designed. Experiments on public datasets show the superiority of proposed DGCD method. It has good generalization ability in different classical challenging scenarios. Compared with the representative methods in recent years, the proposed DGCD method performs better on VHR image change detection.
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