| Summary: | 碩士 === 國立清華大學 === 電機工程學系 === 85 === 3D display of human organs is helpful for the doctors to
diagnose. It's alsothe best way to visualize the internal
structures of human organs.Multidimensional medical imaging
systems, such as CT, SPECT, PET, and MRI,have limitations in
clinical use for two reasons: the time required to obtainhigh-
resolution image data and the often slow postprocessing.
Unlike othertomographic imaging techniques, ultrasound offers
interactive visualization ofunderlying anatomy while providing
flexibility in viewing ima Based on abovetwo reasons, we intend
to establish a 3D ultrasound image display system inthis
thesis. 3D ultrasound display includes (1) data
acquisition, (2) 2Dpreprocessing, (3) 3D reconstruction, (4)
3D rendering. To overcome theregistration problem of 3D
reconstruction, we limit the probe to one degree offreedom and
mechanically scan a volume rotationally with a series of
2Dultrasound images. Then, we process each 2D ultrasound
image using MICalgorithm[10] and apply Hough transform to
extract sec In this thesis, weillustrate the 3D ultrasound
display procedure, simulate and improve the wholeroutines of 3D
ultrasound display, compare experimental results, and
finallyapply the proposed method to echocardiography images.
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