Title
Accelerated liver tumor segmentation in four-phase computed tomography images.
Abstract
Segmentation and volume measurement of liver tumor are important tasks for surgical planning and cancer follow-up. In this work, a segmentation method from four-phase computed tomography images is proposed. It is based on the combination of the Expectation-Maximization algorithm and the Hidden Markov Random Fields. The latter considers the spatial information given by voxel neighbors of two contrast phases. The segmentation algorithm is applied on a volume of interest that decreases the number of processed voxels. To accelerate the classification steps within the segmentation process, a Bootstrap resampling scheme is also adopted. It consists in selecting randomly an optimal representative set of voxels. The experimental results carried out on three clinical datasets show the performance of our liver tumor segmentation method. It has been notably observed that the computing time of the classification algorithm is reduced without any significant impact on the segmentation accuracy.
Year
DOI
Venue
2017
10.1007/s11554-016-0578-y
J. Real-Time Image Processing
Keywords
Field
DocType
Segmentation, Liver tumor, HMRF-EM, Bootstrap resampling, Computed tomography
Voxel,Computer vision,Surgical planning,Scale-space segmentation,Computer science,Segmentation,Segmentation-based object categorization,Image segmentation,Bootstrapping (statistics),Artificial intelligence,Hidden Markov model
Journal
Volume
Issue
ISSN
13
1
1861-8219
Citations 
PageRank 
References 
2
0.47
9
Authors
4
Name
Order
Citations
PageRank
Faten Chaieb1275.23
Tarek Ben Said220.47
Sabra Mabrouk320.47
Faouzi Ghorbel436146.48