Title :
Region tracking in ventricle MR sequence based on hierarchical analysis
Author :
de Carvalho, Marco A. G. ; Couprie, Michel ; de Alencar Lotufo, Roberto
Author_Institution :
A2SI - ESIEE, Noisy-Le-Grand, France
Abstract :
We propose a strategy to track blood volume in cine MR image sequences, based on the multiscale watershed algorithm that provides an indexed hierarchy of each frame. We track a class in a sequence, obtained by user interaction without much effort, and refined by hierarchical addition and suppression operations. A class is a video object in each frame that represents the region of interest.
Keywords :
biomedical MRI; cardiology; haemodynamics; image sequences; medical image processing; optical tracking; video signal processing; blood volume tracking; cine MR image sequences; hierarchical addition operations; hierarchical analysis; hierarchical suppression operations; indexed hierarchy; region of interest; region tracking; user interaction; ventricle MR sequence; video object; Blood; Euclidean distance; Gray-scale; Image segmentation; Image sequences; Informatics; Lakes; Robustness; Shape measurement; Target tracking;
Conference_Titel :
Computer Graphics and Image Processing, 2002. Proceedings. XV Brazilian Symposium on
Print_ISBN :
0-7695-1846-X
DOI :
10.1109/SIBGRA.2002.1167182
