Journal
IEEE ACCESS
Volume 7, Issue -, Pages 78909-78918Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2019.2922839
Keywords
Change detection; random forest; remote sensing; semantic segmentation; U-net
Categories
Funding
- National Natural Science Foundation of China [31770768]
- Natural Science Foundation of Heilongjiang Province of China [F2017001]
- Heilongjiang Province Applied Technology Research and Development Program Major Project [GA18B301]
- China State Forestry Administration Forestry Industry Public Welfare Project [201504307]
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High-resolution remote sensing images are abundant in texture information, and the detection method of the change of pixel-level mainly analyzes the spectral information of the image, which has certain limitations. In this paper, a high-resolution remote sensing image change detection method combining pixel and object levels is proposed to solve the problem that many pepper and salt phenomenon and false detection in the change detection of pixel-level and object-level change detection method are cumbersome for image segmentation process. We integrate the multi-dimensional features of high-resolution remote sensing images and use random forest classifiers to classify to obtain the pixel-level change detection results. Then, we use the improved U-net network to semantically segment the post-phase remote sensing image to obtain the image object segmentation result. Finally, the consequences of pixel-level change detection and image object segmentation result are fused to obtain the image changing area and the unchanging area. The experimental results demonstrate that the algorithm has a higher accuracy rate and detection precision.
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