scholarly journals A Satellite Remote Sensing Evaluation of Urban Land Cover Changes and Its Associated Impacts on Water Resources in Karachi, Pakistan

2006 ◽  
Vol 45 (6) ◽  
pp. 41-55
Author(s):  
Asif Ahmed SHAIKH ◽  
Keinosuke GOTOH
Keyword(s):  
Remote Sensing ◽  
Water Resources ◽  
Land Cover ◽  
Satellite Remote Sensing ◽  
Urban Land ◽  
Land Cover Changes ◽  
Urban Land Cover

Monitoring urban land cover with the use of satellite remote sensing techniques as a means of flood risk assessment in Cyprus

2011 ◽  
Author(s):  
Dimitris Alexakis ◽  
Diofantos Hadjimitsis ◽  
Athos Agapiou ◽  
Kyriacos Themistocleous ◽  
Adrianos Retalis
Keyword(s):  
Remote Sensing ◽  
Risk Assessment ◽  
Land Cover ◽  
Flood Risk ◽  
Satellite Remote Sensing ◽  
Urban Land ◽  
Flood Risk Assessment ◽  
Urban Land Cover ◽  
Remote Sensing Techniques

Monitoring urban land cover using satellite remote sensing techniques and field spectroradiometric measurements: case study of “Yialias” catchment area in Cyprus

2012 ◽  
Vol 6 (1) ◽  
pp. 063603 ◽  
Author(s):  
Dimitrios D. Alexakis ◽  
Diofantos G. Hadjimitsis ◽  
Athos Agapiou ◽  
Kyriacos Themistocleous ◽  
Adrianos Retalis
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Satellite Remote Sensing ◽  
Catchment Area ◽  
Urban Land ◽  
Urban Land Cover ◽  
Remote Sensing Techniques

A novel approach for quantifying high-frequency urban land cover changes at the block level with scarce clear-sky Landsat observations

2021 ◽  
Vol 255 ◽  
pp. 112293
Author(s):  
Chuanbao Jing ◽  
Weiqi Zhou ◽  
Yuguo Qian ◽  
Wenjuan Yu ◽  
Zhong Zheng
Keyword(s):  
Land Cover ◽  
High Frequency ◽  
Urban Land ◽  
Land Cover Changes ◽  
Clear Sky ◽  
Urban Land Cover ◽  
Novel Approach ◽  
Block Level

scholarly journals Urban Land Cover Classification of High-Resolution Aerial Imagery Using a Relation-Enhanced Multiscale Convolutional Network

2020 ◽  
Vol 12 (2) ◽  
pp. 311 ◽  
Author(s):  
Chun Liu ◽  
Doudou Zeng ◽  
Hangbin Wu ◽  
Yin Wang ◽  
Shoujun Jia ◽  
...  
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Land Cover ◽  
Land Cover Classification ◽  
Urban Land ◽  
Small Sample ◽  
Connectivity Pattern ◽  
Feature Maps ◽  
Convolutional Network ◽  
Urban Land Cover

Urban land cover classification for high-resolution images is a fundamental yet challenging task in remote sensing image analysis. Recently, deep learning techniques have achieved outstanding performance in high-resolution image classification, especially the methods based on deep convolutional neural networks (DCNNs). However, the traditional CNNs using convolution operations with local receptive fields are not sufficient to model global contextual relations between objects. In addition, multiscale objects and the relatively small sample size in remote sensing have also limited classification accuracy. In this paper, a relation-enhanced multiscale convolutional network (REMSNet) method is proposed to overcome these weaknesses. A dense connectivity pattern and parallel multi-kernel convolution are combined to build a lightweight and varied receptive field sizes model. Then, the spatial relation-enhanced block and the channel relation-enhanced block are introduced into the network. They can adaptively learn global contextual relations between any two positions or feature maps to enhance feature representations. Moreover, we design a parallel multi-kernel deconvolution module and spatial path to further aggregate different scales information. The proposed network is used for urban land cover classification against two datasets: the ISPRS 2D semantic labelling contest of Vaihingen and an area of Shanghai of about 143 km2. The results demonstrate that the proposed method can effectively capture long-range dependencies and improve the accuracy of land cover classification. Our model obtains an overall accuracy (OA) of 90.46% and a mean intersection-over-union (mIoU) of 0.8073 for Vaihingen and an OA of 88.55% and a mIoU of 0.7394 for Shanghai.

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