Spherical metal marked cone beam CT metal artifact removal system and removal method
A metal marking and metal artifact technology, which is applied in the directions of projection reproduction, 2D image generation, instruments used for radiological diagnosis, etc., to achieve the effect of less noise interference and high efficiency
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[0029] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0030] Such as figure 1 As mentioned above, a cone-beam CT metal artifact removal system for spherical metal markers according to the present invention includes a two-dimensional projection image metal projection area processing module, a metal projection screening module, a three-dimensional reconstruction module and a three-dimensional image processing module.
[0031] Further, the metal projection area processing module of the two-dimensional projection image obtains the separated metal mark projection area, area center and area radius on the two-dimensional projection image, and fills the metal mark projection area according to the edge pixel value to remove the metal mark Projection; the m...
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