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Local binary pattern encoding schemes for computed tomography image segmentation: An experimental and comparative study
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DOI：10.1002/ima.22534.png)
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Abstract
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Local binary patterns (LBPs) are used for effective texture representation in various applications. This study explores the clustering consistency and stability of image segmentation when distance-based clustering methods are used with an LBP. Because data are described by features and attributes, distances among data are also dominated by the definition of features. Moreover, four popular LBP encoding schemes for segmenting computed tomography (CT) images by using fuzzy C-means are discussed and compared. The experimental results demonstrate several notable phenomena: When the pixels are encoded in different LBP encoding schemes, the distance between these pixels varies considerably. The experimental results indicate that each LBP encoding scheme emphasizes a specific image texture that dominates how pixels are described in the feature space and thus affects the clustering results. Based on the evaluation of CT image segmentation by using the clustering inconsistency index, linear and corner-like LBPs are particularly suitable for clustering longitudinal sections and cross sections of CT images, respectively.
Keywords:
clustering
CT images
Euclidean distance
fuzzy C‐ means
image segmentation
local binary pattern
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