Multi-modality medical data three-dimensional visualization method
A multimodal, volumetric data technology, applied in the field of biomedical engineering, can solve problems such as multimodal data fusion and display problems, and achieve the effect of avoiding falling into local extremum, increasing speed, and increasing registration speed
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[0053] We illustrate the 3D visualization of CT and PET modal data with examples. Let the CT volume data be the reference volume, the PET volume data be the floating volume, and their respective coordinates be the object space coordinates. First, we set the multi-resolution coarse registration to 8 pixel length units, perform coordinate transformation on CT and PET data, and calculate the standardized mutual information after the coordinate transformation, and find the coordinate parameters when the standardized mutual information is the largest , take the optimal point as the starting point, reduce the range of coordinate transformation, and at the same time halve the unit length of coordinate transformation, that is, increase the resolution, continue the previous process of coordinate transformation and standardized mutual information criterion, until the optimal point, in the new minimum On the basis of optimization, repeat the previous steps, and approach step by step fro...
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