Object Ba Ed Cloud And Cloudhadow Detection In Land At Imagery Pdf
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File Name: object ba ed cloud and cloudhadow detection in land at imagery .zip
The publisher is not responsible for the use which might be made of the following in for mation. Remote Sensing, and Prof.
- 1610 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, VOL. 15, NO. 10, OCTOBER 2018
- remote sensing for a changing europe - EARSeL, European
- GLOBALLY, the ETM+ land scenes are on average about
We have created a revised cloud detection algorithm for LP measurements that uses the spectral dependence of the vertical gradient in radiance between two wavelengths in the visible and near-IR spectral regions. This approach provides better discrimination between clouds and aerosols than results obtained using a single wavelength. Cloud detection algorithm comparison and validation for operational Landsat data products.
1610 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, VOL. 15, NO. 10, OCTOBER 2018
remote sensing for a changing europe - EARSeL, European
XX, NO. The approach removes cloud-contaminated portions of a satellite image, and then reconstructs the information of missing data utilizing temporal correlation of multitemporal images. The basic idea is to clone information from cloud-free patches to their corresponding cloud-contaminated patches under the assumption that land covers change insignificantly over a short period of time. The patch-based information reconstruction is mathematically formulated as a Poisson equation and solved using a global optimization process. Thus, the proposed approach can potentially yield better results in terms of radiometric accuracy and consistency compared with related approaches. The experimental results show that the proposed approach can process large clouds in a heterogeneous landscape, which is difficult for cloud removal approaches.
Work of With the rapid development of high resolution remote sensing for earth observation technology, satellite imagery is widely used in the fields of resource investigation, environment protection, and agricultural research. Image mosaicking is an important part of satellite imagery production. However, the existence of clouds leads to lots of disadvantages for automatic image mosaicking, mainly in two aspects: 1 Image blurring may be caused during the process of image dodging, 2 Cloudy areas may be passed through by automatically generated seamlines. To address these problems, an automatic mosaicking method is proposed for cloudy satellite imagery in this paper.
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tection forLandsats 4 8 images acquired in mountainous areas. The MFmask Moreover,MFmask produces better cloud detection results than Fmask in moun- tainous areas of cloud shadow shape; and4) more preciseprediction of cloudshadow location. many clear-sky land pixels identi ed within the Landsat 7 ETM+.
GLOBALLY, the ETM+ land scenes are on average about
To resolve this problem, a surface reflectance-based cloud shadow detection SRCSD algorithm is proposed for multitemporal Landsat images. Based on the background LSR, the possible variation in the top of atmosphere TOA reflectance for each clear pixel can be estimated using the radiative transfer equation under different atmospheric conditions. If a pixel has a smaller TOA reflectance than the minimum value of the possible range under clear conditions, it is identified as being shadow covered.
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