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Automatic segmentation of cerebral cortex in magnetic resonance imaging (MRI) is a challenging problem in understanding brain anatomy and functions. The difficulty is mainly due to variable brain structures, various MRI artifacts and restrictive body scanning methods. This paper describes a hybrid model-based method for obtaining an accurate and(More)
Volume data cutting plays a crucial part in medical image probing, computer assisted diagnosis, virtual surgery, etc. Based on hardware-accelerated texture-based volume rendering algorithm, the paper proposes a method for volume cutting. With Boolean operations, the method is extended to multi-object clipping and can meet the needs of more complicated(More)
CdTe quantum dots (QDs) were prepared in an aqueous solution using various mercaptocarboxylic acids, such as 3-mercaptopropionic acid (MPA) and thioglycolic acid (TGA), as stabilizing agents. The experimental result indicated that these stabilizing agents played an important role for the properties of the QDs. Although both TGA and MPA-capped CdTe QDs(More)
Simulation and three-dimensional visualization of object motion is a prerequisite for any surgical planning system. Orbital hypertelorism is a disease, which is most commonly associated with craniofacial malformations. We have developed a surgical planning system for planning and evaluation of orbital hypertelorism surgery. In our system CT-based virtual(More)
Visualizing efficiently volumetric data still remains a challenge in many fields such as medical imaging and scientific visualization. Monte Carlo volume rendering is a novel and efficient visualization technique for very large datasets. However, when taking into account depth cueing, the volume rendering integral becomes complex, and it is difficult to(More)
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