Multisubject Non-rigid Registration of Brain MRI Using Intensity and Geometric Features
MICCAI '01 Proceedings of the 4th International Conference on Medical Image Computing and Computer-Assisted Intervention
Scale & Affine Invariant Interest Point Detectors
International Journal of Computer Vision
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
A learning based algorithm for automatic extraction of the cortical sulci
MICCAI'06 Proceedings of the 9th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
Exploring cortical folding pattern variability using local image features
MCV'10 Proceedings of the 2010 international MICCAI conference on Medical computer vision: recognition techniques and applications in medical imaging
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A data-driven technique is presented for automatically learning cortical folding patterns from MR brain images of different subjects. Cortical patterns are represented in terms of generic scale-invariant image features. Learning automatically identifies a set of features that occur with statistical regularity in appearance and geometry from a large set of MR volume renderings, based on a predescribed anatomical region of interest. A filtering technique is presented for distinguishing between valid cortical features and those likely to arise from incorrect correspondences, based on feature geometry. Expert validation of 100 feature instances shows that 77% correctly identify the same underlying cortical structure in different brains despite high inter-subject variability, and filtering improves the ability to identify the most meaningful patterns.