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MIP projection CPU algorithm

A projection and algorithm technology, applied in the field of medical image processing, can solve the problem of low CPU resource utilization, achieve the effect of reducing the performance of the graphics card and accurately displaying the results

Pending Publication Date: 2022-02-01
杨扬
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problem of low utilization rate of CPU resources in traditional medical imaging three-dimensional technology, the present invention provides a MIP projection CPU algorithm to solve the above problems

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  • MIP projection CPU algorithm

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description,...

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Abstract

The invention relates to the technical field of medical image processing, and particularly provides an MIP projection CPU algorithm, which comprises the following steps: S1, taking out images in a DICOM file in sequence and forming a three-dimensional stack; S2, converting the interval units into pixels from millimeters to form pixel cubes; S3, making a sphere by taking the center of the pixel cube as a sphere center, and taking any point on the surface of the sphere as an observation point; S4, performing ray projection on the observation point, and projecting a point with the maximum density of the initial ray penetrating through the pixel cube on a ray vertical plane; S5, making parallel rays of the initial rays until all the parallel rays passing through the pixel cube are projected; S6, forming an initial image; S7, rotating and zooming points of the initial image to form a positive direction image; S8, rearranging and interpolating pixel points in the positive direction image to obtain a projection image; and S9, displaying the projection image in an interface, wherein imaging can be carried out completely according to the definition of the MIP only by utilizing CPU resources, and a more accurate display result is obtained.

Description

technical field [0001] The invention relates to the technical field of medical image processing, in particular to a MIP projection CPU algorithm. Background technique [0002] 3D visualization of DICOM images is the study of 3D geometric models of tissues or organs constructed from 2D image sequences acquired by various medical imaging equipment, and "true" drawing and reality on the computer screen. At present, there are two main types of methods for 3D visualization of DICOM images: one is to describe the three-dimensional structure of the object by splicing and fitting the surface of the object through geometric units, which is called the surface rendering method, which is based on the extraction of one-dimensional image edges or contour lines, and It is realized with the help of computer graphics technology and hardware. The image formed by this algorithm has high resolution and fast generation speed, and can rotate and change lighting effects quickly and flexibly. It ...

Claims

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Application Information

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IPC IPC(8): G16H30/20G06T1/00
CPCG16H30/20G06T1/00
Inventor 杨扬
Owner 杨扬
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