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Focus size control method and device, equipment and storage medium

A control method and focus technology, which is applied in the field of X-ray imaging, can solve problems such as changes in focus size, affect image spatial resolution, and affect image quality, so as to maintain stability, improve spatial resolution and image quality, and control focus size Effect

Active Publication Date: 2019-07-23
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in tubes based on grid plate electric field focusing or magnetic field focusing, in energy imaging techniques based on fast tube voltage switching, changes in tube voltage are likely to cause changes in focal spot size
Then, when the above-mentioned focusing technology and energy imaging technology are used together, effective control of the focus size cannot be achieved, which will directly affect the spatial resolution of the image, and then affect the image quality

Method used

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  • Focus size control method and device, equipment and storage medium
  • Focus size control method and device, equipment and storage medium
  • Focus size control method and device, equipment and storage medium

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0066] Image 6 It is a flowchart of a focus size control method provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of controlling the size of the focal point during the energy imaging process, especially suitable for the situation of controlling the size of the focal point in real time during the energy imaging process. The method can be executed by the focus size control device provided by the embodiment of the present invention, the device can be realized by software and / or hardware, and the device can be integrated on various user equipments.

[0067] see Image 6 , the method of the embodiment of the present invention specifically includes the following steps:

[0068] S110. Acquire a switching parameter of the tube voltage in energy imaging, and adjust a focusing parameter according to the switching parameter; wherein the focusing parameter includes a grid plate voltage or a focusing coil current.

[0069] Wherein, the sw...

Embodiment 2

[0080] Figure 8 It is a flowchart of a focus size control method provided in Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned technical solutions. In this embodiment, optionally, adjusting the focusing parameter according to the switching parameter may specifically include: if the switching parameter includes a voltage value of the tube voltage at a preset acquisition time node, adjusting the focusing parameter according to the voltage value. Wherein, explanations of terms that are the same as or corresponding to the above embodiments are not repeated here.

[0081] like Figure 8 As shown, the method in this embodiment may specifically include the following steps:

[0082] S210. Acquire switching parameters of tube voltage in energy imaging.

[0083] S220. If the switching parameter includes the voltage value of the tube voltage at the preset acquisition time node, adjust the focusing parameter according to the volta...

Embodiment 3

[0091] Figure 10 It is a structural block diagram of a focus size control device provided in Embodiment 3 of the present invention, and the device is used to implement the focus size control method provided in any of the above embodiments. The device and the focus size control method of the above-mentioned embodiments belong to the same inventive concept. For the details not described in the embodiments of the focus size control device, please refer to the above-mentioned embodiments of the focus size control method. see Figure 10 , the device may specifically include: a switching parameter acquisition module 310 , a focus parameter adjustment module 320 and a focus size control module 330 .

[0092] Wherein, the switching parameter acquisition module 310 is used to acquire the switching parameters of the tube voltage in energy imaging;

[0093] A focus parameter adjustment module 320, configured to adjust the focus parameter according to the switching parameter; wherein t...

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Abstract

The embodiment of the invention discloses a focus size control method and device, equipment and a storage medium. The method comprises the following steps: acquiring a switching parameter of a tube voltage in energy imaging; adjusting a focusing parameter according to the switching parameter; controlling the focus size in energy imaging according to the adjusted focusing parameter; wherein the focusing parameter comprises grid plate voltage or focusing coil current. According to the technical scheme of the embodiment of the invention, the focusing parameter and the tube voltage can be synchronously changed, and the constancy of the focus size can be further maintained, so that the spatial resolution and the image quality of the image are improved.

Description

technical field [0001] Embodiments of the present invention relate to X-ray imaging technology, and in particular to a focus size control method, device, equipment and storage medium. Background technique [0002] With the diversified development of medical imaging technology, the density of voxels obtained based on conventional computerized tomography technology has been unable to meet the medical application requirements of material differentiation. On this basis, the energy imaging technology that can realize the distinction of voxel matter came into being. Among them, the energy imaging technology based on fast switching of tube voltage can realize simultaneous, homologous and same-direction data domain energy imaging through the rapid switching of tube voltage between high-energy voltage and low-energy voltage, which is a very attractive energy imaging technology. [0003] In addition, the constancy of the focus size during the imaging process is a key factor for the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05G1/32A61B6/00
CPCH05G1/32A61B6/40A61N5/10A61B6/032A61B6/405A61B6/4021H01J35/147H05G1/52H05G1/58
Inventor 祝国平吴景林张铁山陈思明褚旭
Owner SHANGHAI UNITED IMAGING HEALTHCARE