Removal method and system for bone tissue in 3D CT (Three Dimensional Computed Tomography) image
A technology in 3DCT and images, applied in image enhancement, image analysis, image data processing, etc., can solve problems such as extraction performance impact
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Embodiment 1
[0148] In this embodiment, test cases Pat_4, Pat_5, and Pat_2 are tested for the supervoxel segmentation process, and the results of supervoxel segmentation for each case are as follows Figure 7 shown. After supervoxel segmentation, some supervoxel segmentation results are as follows Figure 6 shown. Depend on Figure 7 and Figure 6 It can be seen that with the threshold T=[t l ,t h ], the number of supervoxels decreases sharply, and at the same time, the segmentation of supervoxels takes less and less time.
Embodiment 2
[0150] In this example, bone extraction and removal tests were performed on 7 groups of cases. In this test example, some supervoxels in cases Pat_2, Pat_3 and Pat_4 are marked for random forest classifier training, and the specific supervoxel marking information is shown in Table 1. Bone extraction and removal results such as Figure 8 shown. The bone tissue extraction and removal results of Pat_5, Pat_6, Pat_7 and Pat_8 are as follows: Figure 9 shown. Depend on Figure 8 , Figure 9 It can be seen that the system of the present invention can obtain satisfactory extraction and removal results without any prior knowledge of the shape of bone tissue.
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