Effective Segmentation Approach for Solar Photovoltaic Panels in Uneven Illuminated Color Infrared Images

How to accurately segment a solar photovoltaic panel in an infrared image is an intractable problem due to some unfavorable factors. In this article, an effective approach is proposed for solar photovoltaic panel segmentation from infrared images. In order to alleviate the effect of uneven color dis...

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Bibliographic Details
Published in:IEEE journal of photovoltaics 2021-03, Vol.11 (2), p.478-484
Main Authors: Wang, Nan, Sun, Zhan-Li, Zeng, Zhigang, Lam, Kin-Man
Format: Article
Language:English
Subjects:
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Algorithms
Background noise
Clustering
Color
Gray-scale
Image color analysis
Image edge detection
Image enhancement
Image filters
Image segmentation
Infrared imagery
Panels
Photovoltaic cells
Solar panels
solar photovoltaic panel
straight line detection
Subtraction
Sun
Unmanned aerial vehicles
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Summary:How to accurately segment a solar photovoltaic panel in an infrared image is an intractable problem due to some unfavorable factors. In this article, an effective approach is proposed for solar photovoltaic panel segmentation from infrared images. In order to alleviate the effect of uneven color distribution, a guided filter-based image-enhancement method is first devised to strengthen the edges of solar photovoltaic panels. Moreover, a two-stage method is proposed to detect the contour lines of solar photovoltaic panels. In our algorithm, first, after a thresholding operation, contours in the images are detected by means of a line-segment detector. Then, a method based on k -means clustering is employed to eliminate lines caused by noise or irrelevant background areas. In addition, a background-subtraction strategy is designed to achieve a more accurate segmentation result by removing the remaining background regions. Experimental results demonstrate the effectiveness and efficiency of the proposed method for the segmentation of solar photovoltaic panels.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2020.3041189