Sorted self-similarity for multi-modal image registration.
Annu Int Conf IEEE Eng Med Biol Soc
; 2016: 1151-1154, 2016 Aug.
Article
em En
| MEDLINE
| ID: mdl-28268530
ABSTRACT
In medical image analysis, registration of multimodal images has been challenging due to the complex intensity relationship between images. Classical multi-modal registration approaches evaluate the degree of the alignment by measuring the statistical dependency of the intensity values between images to be aligned. Employing statistical similarity measures, such as mutual information, is not promising in those cases with complex and spatially dependent intensity relations. A new similarity measure is proposed based on the assessing the similarity of pixels within an image, based on the idea that similar structures in an image are more probable to undergo similar intensity transformations. The most significant pixel similarity values are considered to transmit the most significant self-similarity information. The proposed method is employed in a framework to register different modalities of real brain scans and the performance of the method is compared to the conventional multi-modal registration approach. Quantitative evaluation of the method demonstrates the better registration accuracy in both rigid and non-rigid deformations.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
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Interpretação de Imagem Assistida por Computador
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Imagem Multimodal
Limite:
Humans
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article