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Staining pattern classification of antinuclear autoantibodies based on block segmentation in indirect immunofluorescence images.

Li J, Tseng KK, Hsieh ZY, Yang CW, Huang HN - PLoS ONE (2014)

Bottom Line: The aim of this paper is to design an automatic system to identify the staining patterns based on block segmentation compared to the cell segmentation most used in previous research.Various feature descriptors and classifiers are tested and compared in the classification of the staining pattern of blocks and it is found that the technique of the combination of the local binary pattern and the k-nearest neighbor algorithm achieve the best performance.Relying on the results of block pattern classification, experiments on the whole images show that classifier fusion rules are able to identify the staining patterns of the whole well (specimen image) with a total accuracy of about 94.62%.

View Article: PubMed Central - PubMed

Affiliation: Department of Computer Science and Technology, Harbin Institute of Technology, Shenzhen Graduate School, Shenzhen, China.

ABSTRACT
Indirect immunofluorescence based on HEp-2 cell substrate is the most commonly used staining method for antinuclear autoantibodies associated with different types of autoimmune pathologies. The aim of this paper is to design an automatic system to identify the staining patterns based on block segmentation compared to the cell segmentation most used in previous research. Various feature descriptors and classifiers are tested and compared in the classification of the staining pattern of blocks and it is found that the technique of the combination of the local binary pattern and the k-nearest neighbor algorithm achieve the best performance. Relying on the results of block pattern classification, experiments on the whole images show that classifier fusion rules are able to identify the staining patterns of the whole well (specimen image) with a total accuracy of about 94.62%.

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Flowchart of block segmentation.
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pone-0113132-g003: Flowchart of block segmentation.

Mentions: Block segmentation is much easier to implement than cell segmentation and does not have the same problems as cell segmentation. As is shown in Figure 3, first the RGB image is converted into a binary image and morphological erosion with a disk mask is performed; then the connected regions, which determine the position of candidate blocks, are located. The centre of the connected region is regarded as the centre of the block with a fixed size, such as and (the set depending on the size of the well image). The centre of the connected region is defined as (Figure 4a)(1)where denotes the location of the centre and and denote the maximum and minimum x axes of the connected region. Similarly, and are the maximum and minimum y axes of the connected region.


Staining pattern classification of antinuclear autoantibodies based on block segmentation in indirect immunofluorescence images.

Li J, Tseng KK, Hsieh ZY, Yang CW, Huang HN - PLoS ONE (2014)

Flowchart of block segmentation.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4256175&req=5

pone-0113132-g003: Flowchart of block segmentation.
Mentions: Block segmentation is much easier to implement than cell segmentation and does not have the same problems as cell segmentation. As is shown in Figure 3, first the RGB image is converted into a binary image and morphological erosion with a disk mask is performed; then the connected regions, which determine the position of candidate blocks, are located. The centre of the connected region is regarded as the centre of the block with a fixed size, such as and (the set depending on the size of the well image). The centre of the connected region is defined as (Figure 4a)(1)where denotes the location of the centre and and denote the maximum and minimum x axes of the connected region. Similarly, and are the maximum and minimum y axes of the connected region.

Bottom Line: The aim of this paper is to design an automatic system to identify the staining patterns based on block segmentation compared to the cell segmentation most used in previous research.Various feature descriptors and classifiers are tested and compared in the classification of the staining pattern of blocks and it is found that the technique of the combination of the local binary pattern and the k-nearest neighbor algorithm achieve the best performance.Relying on the results of block pattern classification, experiments on the whole images show that classifier fusion rules are able to identify the staining patterns of the whole well (specimen image) with a total accuracy of about 94.62%.

View Article: PubMed Central - PubMed

Affiliation: Department of Computer Science and Technology, Harbin Institute of Technology, Shenzhen Graduate School, Shenzhen, China.

ABSTRACT
Indirect immunofluorescence based on HEp-2 cell substrate is the most commonly used staining method for antinuclear autoantibodies associated with different types of autoimmune pathologies. The aim of this paper is to design an automatic system to identify the staining patterns based on block segmentation compared to the cell segmentation most used in previous research. Various feature descriptors and classifiers are tested and compared in the classification of the staining pattern of blocks and it is found that the technique of the combination of the local binary pattern and the k-nearest neighbor algorithm achieve the best performance. Relying on the results of block pattern classification, experiments on the whole images show that classifier fusion rules are able to identify the staining patterns of the whole well (specimen image) with a total accuracy of about 94.62%.

Show MeSH
Related in: MedlinePlus