A rule-based approach to stroke lesion analysis from CT brain images (CROSBI ID 481591)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Matešin, Milan ; Lončarić Sven ; Petravić Damir
engleski
A rule-based approach to stroke lesion analysis from CT brain images
This paper presents a method for automatic segmentation and labeling of computed tomography (CT) head images of stroke lesions. The method is composed of three steps. The first step is automatic determination of head symmetry axis, with possibility of manual improvement of result, if necessary. Symmetry axis calculation is based on moments. In the second step the seeded region-growing (SRG) algorithm is used to segment input image into number of regions having uniform brightness. Features of these regions, such as brightness, area, neighborhood and relative position to symmetry axis are used to create facts for a rule-based expert system. Based on created facts and pre-defined rules as input, the rule-based expert system is used in the third step to label regions as background, scull, gray/white matter, CSF and stroke. Experimental results have been conducted and have demonstrated the feasibility and accuracy of the proposed method.
image segmentation; rule based; seeded region growing; stroke lesion
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Podaci o prilogu
219-223-x.
2001.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 2nd International Symposium on Image and Signal Processing and Analysis
Lončarić, Sven; Babić, Hrvoje
Zagreb: Sveučilišni računski centar Sveučilišta u Zagrebu (Srce)
Podaci o skupu
2nd International Symposium on Image and Signal Processing and Analysis
predavanje
19.06.2001-21.06.2001
Pula, Hrvatska