Abstract:In the actual operation of clinical medicine andteaching research

especially in the pedicle screw implant surgery

a threedimensional reconstruction ofthe vertebrae is required

for the time of reconstruction is too long

and theresolution is low

based on the surface rendering theory of 3D reconstruction.First the 54 DICOM vertebrae CT images that have the resolution of 512×512 werepreprocessed with the bilateralfilterdenoising algorithm. On the basis of the traditional Marching Cubes(MC)algorithm to improve

we first select the seed voxel

with the region growingalgorithm

extract all the voxels that contain isosurfaces

and then through thegolden segmentation instead of the traditional linear interpolation tocalculate the equivalent point

reduce the calculations of public edge

and thenuse VTK and OpenGL to implement the 3D reconstruction and visualization of thevertebrae on GPU quickly and accurately

thus the efficiency of the algorithm isimproved dramatically.