Title :
Pyramidal multiresolution image segmentation in SPECT
Author :
Erdi, Y. ; Loew, M. ; Erdi, A. ; Wessels, B.
Author_Institution :
George Washington Univ., Washington, DC, USA
Abstract :
A median filtered pyramidal multiresolution (MFPM) image segmentation method for detecting and delineating compact objects was applied to single-photon emission computed tomography (SPECT) images. These SPECT images were obtained by scanning spheres from 1 to 54 ml in size and from 50% to 100% contrast settings. The algorithm performed accurately for large sphere (20 and 54 ml) and high contrast (90% and 100%) cases. As the size and contrast decrease, the accuracy of the method also decreases. Comparison of the MFPM method with adaptive thresholding with edge-preserving smoothing (ATEPS) indicated superior performance of the MFPM method
Keywords :
image segmentation; medical image processing; object detection; single photon emission computed tomography; SPECT; edge-preserving smoothing; image contrast; medical diagnostic imaging; method accuracy; nuclear medicine; pyramidal multiresolution image segmentation; spheres; Biological systems; Biomedical imaging; Computed tomography; Image edge detection; Image resolution; Image segmentation; Imaging phantoms; Large-scale systems; Low pass filters; Object detection; 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.1994.411866
