A hybrid method for haemorrhage segmentation in trauma brain CT

Soltaninejad, Mohammadreza and Lambrou, Tryphon and Qureshi, Adnan and Allinson, Nigel and Ye, Xujiong (2014) A hybrid method for haemorrhage segmentation in trauma brain CT. In: MIUA 2014, 9th July 2014, Royal Holloway.

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Item Type:Conference or Workshop contribution (Paper)
Item Status:Live Archive

Abstract

Traumatic brain injuries are important causes of disability and death. Physicians use CT or MRI images to observe the trauma and measure its severity for diagnosis and treatment. Due to the overlap of haemorrhage and normal brain tissues, segmentation methods sometimes lead to false results. In this paper, we present a hybrid method to segment the haemorrhage region in trauma brain CT images. Firstly, the images are partitioned to small segments called superpixels and supervoxels in 2D and 3D spaces, respectively. Then the haemorrhage superpixels/supervoxels are grouped using their average intensity as feature. Finally, a distance regularized level-set is used to accurately delineate the exact boundary of the haemorrhage region. Evaluation is performed using the Jaccard overlap measure of our proposed technique against a modified distance regularized level-set and against the manually segmented ground truth. Our results suggest that performing level-set after superpixel/supervoxel segmentation provides better segmentation than superpixel/supervoxel intensity grouping alone and both these schemes perform better than the modified distance regularized level-set evolution method.

Keywords:Traumatic brain injury, brain CT images, superpixel/supervoxel segmentation, level-set.
Subjects:G Mathematical and Computer Sciences > G740 Computer Vision
Divisions:College of Science > School of Computer Science
ID Code:15956
Deposited On:08 Nov 2014 18:08

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