Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi !

Nonlinear Band Expansion and Nonnegative Matrix Underapproximation for Unsupervised Segmentation of a Liver from a Multi-phase CT image (CROSBI ID 574327)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Kopriva, Ivica ; Chen, Xinjian ; Yao, Jianhua Nonlinear Band Expansion and Nonnegative Matrix Underapproximation for Unsupervised Segmentation of a Liver from a Multi-phase CT image // Medical Imaging 2011: Image Processing, Proc. of SPIE Vol. 7962 / Dawant, Benoit M ; Haynor, David R (ur.). Bellingham (WA): SPIE, 2011. str. 79623A-1-79623A-8

Podaci o odgovornosti

Kopriva, Ivica ; Chen, Xinjian ; Yao, Jianhua

engleski

Nonlinear Band Expansion and Nonnegative Matrix Underapproximation for Unsupervised Segmentation of a Liver from a Multi-phase CT image

A methodology is proposed for contrast enhanced unsupervised segmentation of a liver from a two-dimensional multi-phase CT image. The multi-phase CT image is represented by a linear mixture model, whereupon each single-phase CT image is modeled as a linear mixture of spatial distributions of the organs present in the image. The methodology exploits concentration and spatial diversities between organs present in the image and consists of nonlinear dimensionality expansion followed by matrix factorization that relies on sparseness between spatial distributions of organs. Dimensionality expansion increases concentration diversity (contrast) between organs. The methodology is demonstrated on an experimental three-phase CT image of a liver of two patients.

Multi-phase CT image; liver delineation; unsupervised segmentation; nonnegative matrix factorization.

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o prilogu

79623A-1-79623A-8.

2011.

objavljeno

Podaci o matičnoj publikaciji

Medical Imaging 2011: Image Processing, Proc. of SPIE Vol. 7962

Dawant, Benoit M ; Haynor, David R

Bellingham (WA): SPIE

978-0-8194-8511-3

Podaci o skupu

Medical Imaging 2011

poster

12.02.2011-17.02.2011

Orlando (FL), Sjedinjene Američke Države

Povezanost rada

Računarstvo, Temeljne medicinske znanosti, Matematika