Detail publikace

4D registrace dynamických kontrastních CT dat pomocí optical flow

JAKUBÍČEK, R. JAN, J.

Originální název

4D dynamic contrast enhanced CT data registration using optical flow

Český název

4D registrace dynamických kontrastních CT dat pomocí optical flow

Anglický název

4D dynamic contrast enhanced CT data registration using optical flow

Typ

článek ve sborníku

Jazyk

en

Originální abstrakt

This paper deals with 4D (3D + time) registration method based on optical flow. The main goal is to obtain the velocity field, which is used to correction of displacement in the thoracic data. The one of the most widely used optical flow method published by Horn and Schunck, is utilized in this paper. The proposed method is based on H-S scheme, which is extended by pyramidal and multi-level approach. This allows estimation a larger displacements and this algorithm is thus more robust. Moreover the optical flow method was extended for three-dimension images that develops in time. The performance of proposed algorithm was applied on POPI model, the public model of lung data, which was deformed by synthetic velocity field.

Český abstrakt

Práce se zabývá 4D (3D + čas) registrací CT hrudních kontrastních dat poocí metody optical flow. Hlavním cílem je naleznout pole disparit, které poté slouží pro odstranění lokálních deformací. Metoda vychází ze základní Horn- Schunckovi metody, která byla v rámci práce rozšířena pro obejmová data. Dále bylo využito pyramidálního přístupu, díky kterému je možno zaznamenat a následně kompenzovat i větší deformace. Dále aplikací vícestupňového přístupu je docíleno vyšší robustnosti algoritmu. Metoda byla otestována na volně dostupném CT modelu plic (POPI model), který byl uměle deformován.

Anglický abstrakt

This paper deals with 4D (3D + time) registration method based on optical flow. The main goal is to obtain the velocity field, which is used to correction of displacement in the thoracic data. The one of the most widely used optical flow method published by Horn and Schunck, is utilized in this paper. The proposed method is based on H-S scheme, which is extended by pyramidal and multi-level approach. This allows estimation a larger displacements and this algorithm is thus more robust. Moreover the optical flow method was extended for three-dimension images that develops in time. The performance of proposed algorithm was applied on POPI model, the public model of lung data, which was deformed by synthetic velocity field.

Klíčová slova

Optical flow, 4D registrace, dynamické kontrastní zobrazení

Rok RIV

2014

Vydáno

24.04.2014

Nakladatel

LITERA

Místo

Brno

ISBN

978-80-214-4924-4

Kniha

Proceedings of the 20th Conference STUDENT EEICT 2014 Volume 3

Číslo edice

1.

Strany od

222

Strany do

226

Strany počet

5

URL

BibTex


@inproceedings{BUT107632,
  author="Roman {Jakubíček} and Jiří {Jan}",
  title="4D dynamic contrast enhanced CT data registration using optical flow",
  annote="This paper deals with 4D (3D + time) registration method based on optical flow. The main goal is to obtain the velocity field, which is used to correction of displacement in the thoracic data. The one of the most widely used optical flow method published by Horn and Schunck, is utilized in this paper. The proposed method is based on H-S scheme, which is extended by pyramidal and multi-level approach. This allows estimation a larger displacements and this algorithm is thus more robust. Moreover the optical flow method was extended for three-dimension images that develops in time. The performance of proposed algorithm was applied on POPI model, the public model of lung data, which was deformed by synthetic velocity field.",
  address="LITERA",
  booktitle="Proceedings of the 20th Conference STUDENT EEICT 2014 Volume 3",
  chapter="107632",
  howpublished="print",
  institution="LITERA",
  year="2014",
  month="april",
  pages="222--226",
  publisher="LITERA",
  type="conference paper"
}