A Parallel Octree Construction Method for Visual Reconstruction of CT Slice Data
A construction method and technology of fork tree, which is applied in the field of octree parallel construction of CT slice data visual reconstruction, can solve problems such as inability to handle, inability to achieve parallel efficiency, and poor processing effect, so as to improve the efficiency of numbering and positioning, reduce The effect of duplicating data I/O overhead and improving the effect of data multiplexing
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[0055] The present invention will be described in further detail below in conjunction with the accompanying drawings, accompanying tables and specific embodiments.
[0056] An octree parallel construction method for visual reconstruction of CT slice data, which has a TB-level data scale processing capability, and includes the following steps:
[0057] (1) According to the size X, Y and Z of the original volume data combined by CT slice data, the leaf nodes and intermediate nodes of the octree are set as x, y and z, and the X direction, Y direction and Z direction are obtained by calculation. The number of subdivision grids in the direction N X , N Y and N Z , to obtain the number of subdivision grids of the volume data N=N X *N Y *N Z , construct an index list of a linear full octree according to the number, and divide the grid to represent the leaf nodes of the octree; for example figure 1 As shown, the index list includes the following information:
[0058] 1) Three-d...
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