LI Jing.SLIC super-pixel segmentation algorithm base on NMI features used in remote sensing image[J].Optics and Precision Engineering,2022,30(06):734-742.
LI Jing.SLIC super-pixel segmentation algorithm base on NMI features used in remote sensing image[J].Optics and Precision Engineering,2022,30(06):734-742. DOI: 10.37188/OPE.20223006.0734.
SLIC super-pixel segmentation algorithm base on NMI features used in remote sensing image
The state-of-the-art super-pixel segmentation algorithm based on simple linear iterative clustering (SLIC) has the problem of over segmentation and discontinuity when processing remote sensing images with extensive details. Here, we propose a remote sensing image segmentation method that combines the NMI-based similarity measure between super-pixel blocks to improve the segmentation effect. First, a guided filtering is used to smooth the pepper noise in the image. Second, the image is segmented at a pixel level using the SLIC algorithm to generate initial super-pixels. Third, to achieve image segmentation, the micro super-pixels are determined based on some criterion and then merged into the adjacent super-pixel blocks with the least difference by calculating the similarity measure with its adjacent super-pixel blocks. This paper’s method reduces the sensitivity of super-pixel to noise and improves the precision of image segmentation compared with traditional segmentation algorithms. The experimental results indicate that the proposed algorithm reduced the number of segmented super-pixel blocks from 4 171 to 282 and reduced the number of micro super-pixel blocks by more than 60%. It also reduced the influence of noise points and improved the over segmentation defects of existing algorithms.
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