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http://dx.doi.org/10.9717/kmms.2013.16.6.700

Non-rigid Registration Method of Lung Parenchyma in Temporal Chest CT Scans using Region Binarization Modeling and Locally Deformable Model  

Kye, Hee-Won (한성대학교 정보시스템공학과)
Lee, Jeongjin (숭실대학교 컴퓨터학부)
Publication Information
Journal of Korea Multimedia Society / v.16, no.6, 2013 , pp. 700-707 More about this Journal
Abstract
In this paper, we propose a non-rigid registration method of lung parenchyma in temporal chest CT scans using region binarization modeling and locally deformable model. To cope with intensity differences between CT scans, we segment the lung vessel and parenchyma in each scan and perform binarization modeling. Then, we match them without referring any intensity information. We globally align two lung surfaces. Then, locally deformable transformation model is developed for the subsequent non-rigid registration. Subtracted quantification results after non-rigid registration are visualized by pre-defined color map. Experimental results showed that proposed registration method correctly aligned lung parenchyma in the full inspiration and expiration CT images for ten patients. Our non-rigid lung registration method may be useful for the assessment of various lung diseases by providing intuitive color-coded information of quantification results about lung parenchyma.
Keywords
Non-rigid Registration; Locally Deformable Model; Chest CT; Image Segmentation; Image Subtraction;
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Times Cited By KSCI : 1  (Citation Analysis)
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