Title :
An efficient algorithm for endocardial boundary detection in two-dimensional echocardiography
Author :
Mogahaddam, H.A. ; Lerallut, Jean-Francois ; Robert, Lawrence ; Maingourd, Yves
Author_Institution :
Dept. of Biol. Eng., Compiegne Univ., France
Abstract :
A new algorithm based on gradient information for the extraction of endocardial borders in bi-dimensional echocardiography is presented, Using an optimal edge detector a good efficiency in edge detection and localization is obtained. Recursive implementation enables us to have an infinite duration for the gradient filter, meanwhile the computational volume is maintained in the order of a 3×3 window. A special designed algorithm for closing bi-dimensional edge maps allows us to suppress the noise by choosing high thresholds for hysteresis thresholding. Finally as a new approach we combined a few number of edge maps obtained with different values of filter parameters. Excellent results show the efficiency of the algorithm in detection of endocardial borders in noisy echocardiographic images in children
Keywords :
acoustic noise; echocardiography; edge detection; filtering theory; medical image processing; recursive filters; algorithm; bidimensional echocardiography; bidimensional edge maps; children; computational volume; edge detection; efficient algorithm; endocardial borders; endocardial boundary detection; filter parameters; gradient filter; gradient information; high thresholds; hysteresis thresholding; localization; noise suppression; noisy echocardiographic images; optimal edge detector; recursive implementation; two-dimensional echocardiography; Acoustic noise; Acoustic signal detection; Algorithm design and analysis; Data mining; Detectors; Echocardiography; Equations; Filters; Hysteresis; Image edge detection; Noise level; Optical filters; Optical scattering; Smoothing methods;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.411851
