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Automatic landmark extraction from image data using modified growing neural gas network

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3 Author(s)
Fatemizadeh, E. ; Dept. of Electr. & Comput. Eng., Univ. of Tehran, Iran ; Lucas, C. ; Soltanian-Zadeh, H.

A new method for automatic landmark extraction from MR brain images is presented. In this method, landmark extraction is accomplished by modifying growing neural gas (GNG), which is a neural-network-based cluster-seeking algorithm. Using modified GNG (MGNG) corresponding dominant points of contours extracted from two corresponding images are found. These contours are borders of segmented anatomical regions from brain images. The presented method is compared to: 1) the node splitting-merging Kohonen model and 2) the Teh-Chin algorithm (a well-known approach for dominant points extraction of ordered curves). It is shown that the proposed algorithm has lower distortion error, ability of extracting landmarks from two corresponding curves simultaneously, and also generates the best match according to five medical experts.

Published in:

Information Technology in Biomedicine, IEEE Transactions on  (Volume:7 ,  Issue: 2 )

Date of Publication:

June 2003

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