| 主权项 |
1. An image display method used in a scanning system, the method comprising:
implementing a scanning process to obtain scanning data; converting the scanning data into image data; implementing an identification process and a segmentation process to the image data to obtain position and direction information of an interventional device; and calculating imaging parameters corresponding to a multi-planar reformation display mode, a curve-planar reformation display mode, or a three-dimensional display mode, and implementing real-time image display based on the imaging parameters, wherein if the imaging parameters are calculated corresponding to the multi-planar reformation display mode, the step of calculating the imaging parameters and implementing real-time image display comprises: determining a first set of imaging parameters for one or more imaging planes based on the obtained position and direction information of the interventional device, where the one or more imaging planes at least comprise a plane in which the interventional device is disposed, where the first set of imaging parameters for anyone of the one or more imaging planes comprise coordinate information of a point on the corresponding plane, normal vector of the corresponding plane, size of the corresponding plane and information of local coordinate vectors of the corresponding plane; establishing a three-dimensional image data set based on the image data obtained from the scanning process; obtaining one or more multi-planar reformation images based on the three-dimensional image data set and the determined first set of imaging parameters of the one or more imaging planes; and displaying the one or more multi-planar reformation images, wherein if the imaging parameters are calculated corresponding to the curve-planar reformation display mode, the step of calculating the imaging parameters and implementing real-time image display comprises: determining a second set of imaging parameters of an imaging curve plane in which the interventional device is disposed based on the obtained position and direction information of the interventional device, where the second set of imaging parameters comprise information of a curve line along which the interventional device is disposed and size of the curve plane; establishing a three-dimensional image data set based on the image data obtained from the scanning process; obtaining a curve-planar reformation image based on the three-dimensional image data set and the determined second set of imaging parameters of the curve plane; and displaying the curve-planar reformation image, wherein if the imaging parameters are calculated corresponding to the three-dimensional display mode, the step of calculating the imaging parameters and implementing real-time image display comprises: determining a third set of parameter information of an imaging camera plane based on the obtained position and direction information of the interventional device; establishing a three-dimensional image data set based on the image data obtained from the scanning process; implementing traversal treatments to points on the imaging camera plane, so as to cast a ray from each point on the imaging camera plane along a normal vector direction of the imaging camera plane; calculating intersection points of the rays and the three-dimensional image data set; taking the intersection points as sample points and processing the sample points using image composition to form a three-dimensional reformation image; and displaying the three-dimensional reformation image. |
