TY - JOUR
T1 - A comparison between two robust techniques for segmentation of blood vessels
AU - Rodríguez, Roberto
AU - Castillo, Patricio J.
AU - Guerra, Valia
AU - Azuela, Juan Humberto Sossa
AU - Suáreza, Ana G.
AU - Izquierdo, Ebroul
PY - 2008/8
Y1 - 2008/8
N2 - Image segmentation plays an important role in image analysis. According to several authors, segmentation terminates when the observer's goal is satisfied. For this reason, a unique method that can be applied to all possible cases does not yet exist. In this paper, we have carried out a comparison between two current segmentation techniques, namely the mean shift method, for which we propose a new algorithm, and the so-called spectral method. In this investigation the important information to be extracted from an image is the number of blood vessels (BV) present in the image. The results obtained by both strategies were compared with the results provided by manual segmentation. We have found that using the mean shift segmentation an error less than 20% for false positives (FP) and 0% for false negatives (FN) was observed, while for the spectral method more than 45% for FP and 0% for FN were obtained. We discuss the advantages and disadvantages of both methods.
AB - Image segmentation plays an important role in image analysis. According to several authors, segmentation terminates when the observer's goal is satisfied. For this reason, a unique method that can be applied to all possible cases does not yet exist. In this paper, we have carried out a comparison between two current segmentation techniques, namely the mean shift method, for which we propose a new algorithm, and the so-called spectral method. In this investigation the important information to be extracted from an image is the number of blood vessels (BV) present in the image. The results obtained by both strategies were compared with the results provided by manual segmentation. We have found that using the mean shift segmentation an error less than 20% for false positives (FP) and 0% for false negatives (FN) was observed, while for the spectral method more than 45% for FP and 0% for FN were obtained. We discuss the advantages and disadvantages of both methods.
KW - Image segmentation
KW - Mean shift
KW - Spectral methods
UR - http://www.scopus.com/inward/record.url?scp=48349107131&partnerID=8YFLogxK
U2 - 10.1016/j.compbiomed.2008.06.002
DO - 10.1016/j.compbiomed.2008.06.002
M3 - Artículo
SN - 0010-4825
VL - 38
SP - 931
EP - 940
JO - Computers in Biology and Medicine
JF - Computers in Biology and Medicine
IS - 8
ER -