Geographic object segmentation from weakly annotated remotesensingimages has become a research hotspot, since it can greatly reduce the costly annotation burden. Recently, it has made remarkable progress by dividing...
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ISBN:
(纸本)9781728198354
Geographic object segmentation from weakly annotated remotesensingimages has become a research hotspot, since it can greatly reduce the costly annotation burden. Recently, it has made remarkable progress by dividing it into two sequential steps, which first produces pseudo labels (PLs) from a localization model, then uses PLs to train a segmentation network for final results. The one-way knowledge transfer in the above schemes, however, lacks the feedback from the segmentation to localization model which may result in suboptimal performance. In this paper, we develop a mutually supervised learning (MSL) framework for geographic object segmentation under image-wise annotations. First, MSL learns the localization and segmentation model concurrently and employs the output from each of the two models as pseudo supervision for the other one by formulating an interactive consistency loss, which encourages each model to provide positive feedback and guidance to the other. Then, a variance-based uncertainty estimation strategy is introduced to explicitly approximate the uncertainty of the PLs, which helps to alleviate the detrimental effect caused by learning from noisy PLs. Finally, we design a multi-scale activation integration-based localization model to produce high-quality localization maps. Comprehensive evaluations and ablation studies validate the superiority of the MSL framework.
Recently, the visual instruction multimodal large language models (MLLMs) have been extensively studied in the nature scenario. However, current remotesensing (RS) MLLMs mainly focus on image-level understanding and ...
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In target detection, remotesensingimages have characteristics such as complex background, dense target distribution, and small targets, which lead to poor detection results, missed detections and false detection. Th...
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SAR technology has been intensively implemented for geo-sensing and mapping purposes due to its advantages of high azimuthal resolution and weather-independent operation compared to other remotesensing technologies. ...
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ISBN:
(纸本)9798350302615
SAR technology has been intensively implemented for geo-sensing and mapping purposes due to its advantages of high azimuthal resolution and weather-independent operation compared to other remotesensing technologies. Modelling SAR image data consequently becomes a prominent topic of interest, especially for data populations with impulsive signal features, which are common in SAR images of urban areas. A recently proposed model named Cauchy-Rician has manifested great potential in modelling extremely heterogeneous SAR images, yet the work only provided a MCMC-based parameter estimator that demands considerable computational power. In this work, a novel analytical parameter estimation method based on algebraic moments is proposed to provide stable and accurate estimation of the parameters of the Cauchy-Rician model with significant improvement on computation speed.
remotesensingimage radiometric resolution transformation plays a fundamental role in data storage, transmission efficiency, processing speed, image visualization, data simplification, and analysis. As a crucial prep...
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Using the data from GNSS-PWV, FY-2G Satellite detection products, wind profile radar and conventional observation data, an extreme rainstorm process on 7th August 2018 in Shenyang was analyzed. The results show that P...
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Vision-Language Models for remotesensing have shown promising uses thanks to their extensive pretraining. However, their conventional usage in zero-shot scene classification methods still involves dividing large imag...
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Multi-temporal collaborative analysis of port scenes can enhance the representation ability of image scenes, and image registration is required before multi-temporal analysis. In this paper, an image registration netw...
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Hyperspectral image unmixing estimates a collection of constituent materials (called endmembers) and their corresponding proportions (called abundances), which is a critical preprocessing step in many remotesensing a...
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This paper addressed the contradiction between the decrease of labor force and the increase of agricultural output demand in agricultural development, combined with the technical advantages of UAV imaging radar in SAR...
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