Signed-distance function based non-rigid registration of image series with varying image intensity
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F21%3A00080677" target="_blank" >RIV/00023001:_____/21:00080677 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21340/21:00346092
Výsledek na webu
<a href="http://www.aimsciences.org/article/doi/10.3934/dcdss.2020386" target="_blank" >http://www.aimsciences.org/article/doi/10.3934/dcdss.2020386</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3934/dcdss.2020386" target="_blank" >10.3934/dcdss.2020386</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Signed-distance function based non-rigid registration of image series with varying image intensity
Popis výsledku v původním jazyce
In this paper we propose a method for locally adjusted optical flow-based registration of multimodal images, which uses the segmentation of object of interest and its representation by the signed-distance function (OFdist method). We deal with non-rigid registration of the image series acquired by the Modiffied Look-Locker Inversion Recovery (MOLLI) magnetic resonance imaging sequence, which is used for a pixel-wise estimation of T1 relaxation time. The spatial registration of the images within the series is necessary to compensate the patient's imperfect breath-holding. The evolution of intensities and a large variation of image contrast within the MOLLI image series, together with the myocardium of left ventricle (the object of interest) typically not being the most distinct object in the scene, makes the registration challenging. The paper describes all components of the proposed OFdist method and their implementation. The method is then compared to the performance of a standard mutual information maximization-based registration method, applied either to the original image (MIM) or to the signed-distance function (MIMdist). Several experiments with synthetic and real MOLLI images are carried out. On synthetic image with a single object, MIM performed the best, while OFdist and MIMdist provided better results on synthetic images with more than one object and on real images. When applied to signed-distance function of two objects of interest, MIMdist provided a larger registration error, but more homogeneously distributed, compared to OFdist. For the real MOLLI image series with left ventricle pre-segmented using a level-set method, the proposed OFdist registration performed the best, as is demonstrated visually and by measuring the increase of mutual information in the object of interest and its neighborhood. © 2021 American Institute of Mathematical Sciences. All rights reserved.
Název v anglickém jazyce
Signed-distance function based non-rigid registration of image series with varying image intensity
Popis výsledku anglicky
In this paper we propose a method for locally adjusted optical flow-based registration of multimodal images, which uses the segmentation of object of interest and its representation by the signed-distance function (OFdist method). We deal with non-rigid registration of the image series acquired by the Modiffied Look-Locker Inversion Recovery (MOLLI) magnetic resonance imaging sequence, which is used for a pixel-wise estimation of T1 relaxation time. The spatial registration of the images within the series is necessary to compensate the patient's imperfect breath-holding. The evolution of intensities and a large variation of image contrast within the MOLLI image series, together with the myocardium of left ventricle (the object of interest) typically not being the most distinct object in the scene, makes the registration challenging. The paper describes all components of the proposed OFdist method and their implementation. The method is then compared to the performance of a standard mutual information maximization-based registration method, applied either to the original image (MIM) or to the signed-distance function (MIMdist). Several experiments with synthetic and real MOLLI images are carried out. On synthetic image with a single object, MIM performed the best, while OFdist and MIMdist provided better results on synthetic images with more than one object and on real images. When applied to signed-distance function of two objects of interest, MIMdist provided a larger registration error, but more homogeneously distributed, compared to OFdist. For the real MOLLI image series with left ventricle pre-segmented using a level-set method, the proposed OFdist registration performed the best, as is demonstrated visually and by measuring the increase of mutual information in the object of interest and its neighborhood. © 2021 American Institute of Mathematical Sciences. All rights reserved.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
30224 - Radiology, nuclear medicine and medical imaging
Návaznosti výsledku
Projekt
<a href="/cs/project/NV19-08-00071" target="_blank" >NV19-08-00071: Analýza charakteru proudění a predikce vývoje změn v endovaskulárně ošetřených tepnách pomocí MR zobrazování a matematického modelování.</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Discrete and Continuous Dynamical Systems-Series S
ISSN
1937-1632
e-ISSN
—
Svazek periodika
14
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
16
Strana od-do
1145-1160
Kód UT WoS článku
000608373600028
EID výsledku v databázi Scopus
2-s2.0-85099694424