NDLI: An optimization based approach embedded in a fuzzy connectivity algorithm for airway tree segmentation

Content Provider	IEEE Xplore Digital Library
Author	Yousefi Rizi, Fereshteh Ahmadian, Alireza Fatemizadeh, Emad Alirezaie, Javad
Copyright Year	2008
Description	Author affiliation: Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran (Fatemizadeh, Emad) \|\| Department of. Electrical Engineering, Ryerson University, Toronto, Canada (Alirezaie, Javad) \|\| Department of Biomedical Systems & Medical Physics, Tehran University of Medical Science and with the Research Center for Science and Technology in Medicine, RCSTIM, Iran (Yousefi Rizi, Fereshteh; Ahmadian, Alireza)
Abstract	The main problem with airway segmentation methods which significantly influences their accuracy is leakage into the extra-luminal regions due to thinness of the airway wall during the process of segmentation. This phenomenon potentially makes large regions of lung-parenchyma to be wrongly identified as airways. A solution to this problem in the previous methods was based on leak detection followed by reducing leakage during the segmentation process. This has been dealt with adjusting the segmentation parameters and performing the re-segmentation process on the pre-segmented area. This makes the algorithm very exhaustive and more dependent on the user interaction. The method presented here is to apply a mathematical shape optimization approach embedded in an efficient fuzzy connectivity based segmentation algorithm to preserve shape features of the object to perform a precise segmentation. The novelty of our proposed scheme is to prevent the leakage root rather than taking leak detection and reduction approaches. This is carried out by minimizing a gradient based cost function which employs shape features of circle/cylindrical structure of airway tree during the process of segmentation.
Starting Page	4011
Ending Page	4014
File Size	528424
Page Count	4
File Format	PDF
ISBN	9781424418145
ISSN	1557170X
DOI	10.1109/IEMBS.2008.4650089
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-20
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gradient descent Airway tree segmentation Fuzzy connectivity Shape optimization
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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