A Fast and Stable Method for Detecting and Tracking Medical Organs in MRI Sequences

Dong Joong KANG  Chang Yong KIM  Yang Seok SEO  In So KWEON  

IEICE TRANSACTIONS on Information and Systems   Vol.E82-D   No.2   pp.497-499
Publication Date: 1999/02/25
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Image Processing,Computer Graphics and Pattern Recognition
image processing,  active contours,  dynamic programming,  

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A discrete dynamic model for defining contours in 2-D medical images is presented. An active contour in this objective is optimized by a dynamic programming algorithm, for which a new constraint that has fast and stable properties is introduced. The internal energy of the model depends on local behavior of the contour, while the external energy is derived from image features. The algorithm is able to rapidly detect convex and concave objects even when the image quality is poor.