Results 21 to 30 of about 417 (152)

Superpixel-Based Multiscale CNN Approach Toward Multiclass Object Segmentation From UAV-Captured Aerial Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Unmanned aerial vehicles (UAVs) are promising remote sensors capable of reforming remote sensing applications. However, for artificial-intelligence-guided tasks, such as land cover mapping and ground-object mapping, most deep-learning-based architectures
Tanmay Kumar Behera   +3 more
doaj   +1 more source

Reg-Superpixel Guided Convolutional Neural Network of PolSAR Image Classification Based on Feature Selection and Receptive Field Reconstruction

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The convolutional neural network (CNN) has a poor performance in nonuniform and edge regions due to the limitation of fixed receptive field. At the same time, feature stacking of input data can bring burden and overfitting to the network.
Ronghua Shang   +5 more
doaj   +1 more source

Image classification using graph neural network and multiscale wavelet superpixels

open access: yesPattern Recognition Letters, 2023
Prior studies using graph neural networks (GNNs) for image classification have focused on graphs generated from a regular grid of pixels or similar-sized superpixels. In the latter, a single target number of superpixels is defined for an entire dataset irrespective of differences across images and their intrinsic multiscale structure.
Varun Vasudevan   +3 more
openaire   +2 more sources

Semantic Segmentation of Remote Sensing Imagery Based on Multiscale Deformable CNN and DenseCRF

open access: yesRemote Sensing, 2023
The semantic segmentation of remote sensing images is a significant research direction in digital image processing. The complex background environment, irregular size and shape of objects, and similar appearance of different categories of remote sensing ...
Xiang Cheng, Hong Lei
doaj   +1 more source

MULTISCALE SEGMENTATION OF POLARIMETRIC SAR IMAGE BASED ON SRM SUPERPIXELS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Abstract. Multi-scale segmentation of remote sensing image is more systematic and more convenient for the object-oriented image analysis compared to single-scale segmentation. However, the existing pixel-based polarimetric SAR (PolSAR) image multi-scale segmentation algorithms are usually inefficient and impractical.
F. Lang, J. Yang, L. Wu, D. Li, D. Li
openaire   +3 more sources

A raster-based typification method for multiscale visualization of building features considering distribution patterns

open access: yesInternational Journal of Digital Earth, 2022
In map multiscale visualization, typification is the process of replacing original objects, such as buildings, using a smaller number of objects while maintaining initial geometrical and distribution characteristics.
Yilang Shen   +4 more
doaj   +1 more source

A Superpixel-Based Relational Auto-Encoder for Feature Extraction of Hyperspectral Images

open access: yesRemote Sensing, 2019
Filter banks transferred from a pre-trained deep convolutional network exhibit significant performance in heightening the inter-class separability for hyperspectral image feature extraction, but weakening the intra-class consistency simultaneously.
Miaomiao Liang, Licheng Jiao, Zhe Meng
doaj   +1 more source

Multiscale Union Regions Adaptive Sparse Representation for Hyperspectral Image Classification

open access: yesRemote Sensing, 2017
Sparse Representation has been widely applied to classification of hyperspectral images (HSIs). Besides spectral information, the spatial context in HSIs also plays an important role in the classification.
Fei Tong   +3 more
doaj   +1 more source

Research on land use classification of hyperspectral images based on multiscale superpixels

open access: yesMathematical Biosciences and Engineering, 2020
With the rapid development of remote sensing technology, research on land use classification methods based on hyperspectral remote sensing images has attracted widespread attention. Existing land-use classification studies mostly use the average filtering method at a single scale for spectral image processing. These methods cannot accurately filter the
Hua Wang   +4 more
openaire   +4 more sources

Semi-Supervised Classification for PolSAR Data With Multi-Scale Evolving Weighted Graph Convolutional Network

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Although deep learning-based methods have been successfully applied to polarimetric synthetic aperture radar (PolSAR) image classification tasks, most of the available techniques are not suitable to deal with PolSAR data on irregular domains, e.g ...
Shijie Ren, Feng Zhou
doaj   +1 more source

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