Building Shadow Detection of Remote Sensing Images Based on Shadow Probability Constraint

Yue, 葛乐 Ge; Xing, 钟兴 Zhong

doi:10.3788/lop55.041006

激光与光电子学进展

2018

DOI: 10.3788/lop55.041006

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Building Shadow Detection of Remote Sensing Images Based on Shadow Probability Constraint

葛乐 Ge Yue¹,

钟兴 Zhong Xing²

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2022

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Adaptive Unsupervised-Shadow-Detection Approach for Remote-Sensing Image Based on Multichannel Features

Zhang

Guo

et al. 2022

Remote Sensing

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Shadow detection is an essential research topic in the remote-sensing domain, as the presence of shadow causes the loss of ground-object information in real areas. It is hard to define specific threshold values for the identification of shadow areas with the existing unsupervised approaches due to the complexity of remote-sensing scenes. In this study, an adaptive unsupervised-shadow-detection method based on multichannel features is proposed, which can adaptively distinguish shadow in different scenes. First, new multichannel features were designed in the hue, saturation, and intensity color space, and the shadow properties of high hue, high saturation, and low intensity were considered to solve the insufficient feature-extraction problem of shadows. Then, a dynamic local adaptive particle swarm optimization was proposed to calculate the segmentation thresholds for shadows in an adaptive manner. Finally, experiments performed on the Aerial Imagery dataset for Shadow Detection (AISD) demonstrated the superior performance of the proposed approach in comparison with traditional unsupervised shadow-detection and state-of-the-art deep-learning methods. The experimental results show that the proposed approach can detect the shadow areas in remote-sensing images more accurately and efficiently, with the F index being 82.70% on the testing images. Thus, the proposed approach has better application potential in scenarios without a large number of labeled samples.

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Adaptive Unsupervised-Shadow-Detection Approach for Remote-Sensing Image Based on Multichannel Features

Zhang

Guo

et al. 2022

Remote Sensing

View full text Add to dashboard Cite

show abstract

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Building Shadow Detection of Remote Sensing Images Based on Shadow Probability Constraint

Cited by 1 publication

References 0 publications

Adaptive Unsupervised-Shadow-Detection Approach for Remote-Sensing Image Based on Multichannel Features

Adaptive Unsupervised-Shadow-Detection Approach for Remote-Sensing Image Based on Multichannel Features

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