Non-rigid registration between brain CT images and MRI brain atlas by combining grayscale information, point correspondence on the midsaggital plane and brain surface matching
This paper presents an image registration method to warp brain atlas of magnetic resonance image (MRI) onto computed tomography (CT) brain images.A new deformable model is proposed to add constraints on corresponding midsagittal planes (MSP).The point correspondences in the MSPs are built up from registered MSPs of the brain CT images and the atlas.The object function is a combination of mutual information,point correspondences between MSPs,and correspondence between brain boundaries.The parameters of deformable model are optimized using an iterative strategy:maximization of mutual information (MI) to find the deformable field,assigning point correspondence of MSPs to modify the deformable field,and Gaussian smoothing to make the deformable field continuous and smooth.To speed up,we adopt a multi-resolution scheme.Experiments show that the proposed method yields good results especially at the region around MSP.
component Registration Feature-constrain Multimodal Midsagittal plane
Aili Gao Mingyang Chen Qingmao Hu
Shenzhen Institutes of Advanced Technology Shenzhen,China Shenzhen Institutes of Advanced Technology Shenzhen Institutes of Advanced Technology;Shenzhen Key Laboratory for Neuro-Psychairtric Modulation
国际会议
杭州
英文
222-225
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）