Abstract
This paper presents the implementation and quantitative evaluation of a four-phase three-dimensional active contour implemented with a level set framework for automated segmentation of cortical structures on brain T1 MRI images. The segmentation algorithm performed an optimal partitioning of three-dimensional data based on homogeneity measures that naturally evolves to the extraction of different tissue types in the brain. Random seed initialization was used to speed up numerical computation and avoid the need for a priori information. A simple post-processing, based on morphological operators, was applied to correct for segmentation artifacts. The segmentation method was tested on ten MRI brain data sets and quantitative evaluation was performed by comparison to manually labeled data, Computation of false positive and false negative assignments of voxels for white matter, gray matter and cerebrospinal fluid were performed. Results reported high accuracy of the segmentation methods, demonstrating the efficiency and flexibility of the multi-phase level set segmentation framework to perform the challenging task of automatically extracting cortical brain tissue volume contours.
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Keywords
- Segmentation Method
- Brain Magnetic Resonance Image
- Homogeneity Measure
- Magnetic Resonance Image Slice
- Magnetic Resonance Image Segmentation
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Angelini, E.D., Song, T., Mensh, B.D., Laine, A. (2004). Multi-phase Three-Dimensional Level Set Segmentation of Brain MRI. In: Barillot, C., Haynor, D.R., Hellier, P. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004. MICCAI 2004. Lecture Notes in Computer Science, vol 3216. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30135-6_39
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DOI: https://doi.org/10.1007/978-3-540-30135-6_39
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