نتایج جستجو برای: demons
تعداد نتایج: 864 فیلتر نتایج به سال:
We consider the registration of successive images over a cardiac ultrasound sequence. A key challenge is speckle. We suggest that, for practical purposes, speckle should be regarded as the sum of two components: the useful, temporally correlated speckle pattern; and speckle noise, which is the unpredictable change in the speckle pattern. We also propose that an increase in robustness can be obt...
Abdominal image non-rigid registration is a particularly challenging task due to the presence of multiple organs, many of which move independently, contributing to independent deformations. Local-affine registration methods can handle multiple independent movements by assigning prior definition of each affine component and its spatial extent which is less suitable for multiple soft-tissue struc...
Liver segmentation from abdominal Computer Tomography (CT) images plays an important role in liver disease diagnosis as well as liver surgical planning. In this paper, a hybrid approach is proposed for fully automatic liver position search and liver segmentation in CT images. First liver intensity range is detected based on prior knowledge of liver volume. Then region of interest (ROI) is extra...
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