CN-121998818-A - Splicing method and splicing device for X-ray images and X-ray photographing system

Abstract

A splicing method, a splicing device and an X-ray photographing system for X-ray images are provided, wherein a plurality of X-ray images to be spliced of a spliced body position are obtained, a candidate splicing area of at least one X-ray image is obtained, the plurality of X-ray images are displayed on a splicing planning interface, the candidate splicing area is identified, an operator's operation on the splicing planning interface is received, an interested area is determined in the candidate splicing area, and the plurality of X-ray images are spliced based on the interested area to obtain a spliced image of the spliced body position. According to the application, the region of interest is determined in the overlapping region or the candidate stitching region, and then the stitching of the X-ray images is performed based on the region of interest, so that the ghost problem of the anatomical structure/tissue concerned by the operator in the stitched image is reduced, and the definition of the ghost problem of the anatomical structure/tissue concerned by the operator in the stitched image is improved.

Inventors

• LI XIONG
• LI SHUANGSHUANG

Assignees

• 深圳迈瑞生物医疗电子股份有限公司

Dates

Publication Date

20260508

Application Date

20241101

Claims (18)

1. 1. A method of stitching X-ray images, comprising: Acquiring a plurality of X-ray images to be spliced of the spliced body position; acquiring a candidate stitching region of at least one of the X-ray images, wherein the candidate stitching region of the X-ray image includes at least a portion of an overlap region between the X-ray image and an X-ray image adjacent thereto on stitching; Displaying a plurality of X-ray images on a stitching planning interface, and identifying the candidate stitching areas; receiving the operation of an operator on the splicing planning interface, and determining an interested area in the candidate splicing area; splicing a plurality of X-ray images based on the region of interest to obtain a spliced image of the spliced body position; And displaying the spliced image of the spliced body position.
2. 2. The stitching method according to claim 1, wherein displaying a plurality of the X-ray images at a stitching planning interface comprises: Displaying a plurality of X-ray images on the stitching planning interface based on the adjacent position relation of the X-ray images on the stitching, or And displaying the plurality of X-ray images on the splicing planning interface based on the position distribution relation of the plurality of X-ray images in the splicing body position.
3. 3. The stitching method of claim 1 or 2 wherein identifying the candidate stitching region comprises identifying the candidate stitching region by a region defined by a line.
4. 4. The stitching method of claim 1 wherein the receiving an operator manipulation of the stitching planning interface to determine a region of interest within the candidate stitching region comprises: Receiving a click operation of an operator on the splicing planning interface in the candidate splicing area, and confirming at least one interest point in the candidate splicing area; and determining a region containing the interest point in the candidate splicing region as the interest region.
5. 5. The stitching method of claim 1 wherein the receiving an operator manipulation of the stitching planning interface to determine a region of interest within the candidate stitching region comprises: Receiving frame selection operation of an operator on the splicing planning interface in the candidate splicing region, determining a frame selection region as the region of interest based on the frame selection operation, or And receiving drawing operation of an operator on the splicing planning interface in the candidate splicing region, and determining a drawing region based on the drawing operation as the region of interest.
6. 6. The stitching method of claim 1 wherein the receiving an operator manipulation of the stitching planning interface to determine a region of interest within the candidate stitching region comprises: Identifying and displaying anatomical structure information within the candidate stitching region, the anatomical structure information comprising structural feature points or feature regions; the method comprises the steps of receiving confirmation operation of an operator to confirm the anatomical structure information, wherein the confirmation operation of the operator to confirm the anatomical structure information comprises the steps of determining a region which is of a preset size and contains the structural feature points in the candidate splicing region to serve as the region of interest, or taking the feature region as the region of interest.
7. 7. The stitching method according to any one of claims 1 to 6, wherein stitching a plurality of the X-ray images based on the region of interest to obtain a stitched image of the stitched body position comprises: Identifying an anatomical structure in the region of interest, and performing image registration on the associated X-ray image based on the identified anatomical structure to obtain a registration result; Image stitching is performed on the associated X-ray images based on the registration structure.
8. 8. A method of stitching X-ray images, comprising: Acquiring a plurality of X-ray images to be spliced of the spliced body position; displaying at least one X-ray image on a stitching planning interface; Receiving operation of an operator on the splicing planning interface, and determining a region of interest on at least one X-ray image; splicing a plurality of X-ray images based on the region of interest to obtain a spliced image of the spliced body position; And displaying the spliced image of the spliced body position.
9. 9. The stitching method of claim 8 wherein receiving an operator manipulation of the stitching plan interface to determine a region of interest on at least one of the X-ray images includes receiving an operator selection, framing or drawing operation on the stitching plan interface to determine the region of interest.
10. 10. The stitching method according to claim 8, wherein said receiving an operator manipulation of the stitching planning interface to determine a region of interest on at least one of the X-ray images includes: identifying one or more anatomical structures on at least one X-ray image displayed on a stitching planning interface to obtain an identification result; A confirmation or selection operation of the identified anatomical structure by the operator is received, the confirmed or selected anatomical structure being the region of interest.
11. 11. A method of stitching X-ray images, comprising: Acquiring a plurality of X-ray images to be spliced; acquiring a candidate stitching region of at least one of the X-ray images, wherein the candidate stitching region of the X-ray image is at least part of an overlapping region between the X-ray image and an X-ray image adjacent thereto on stitching; Determining a region of interest from within the candidate stitching region; Splicing a plurality of X-ray images based on the region of interest to obtain a spliced image; and displaying the spliced image.
12. 12. The stitching method of claim 11 wherein determining a region of interest from within the candidate stitching region comprises displaying the candidate stitching region and determining the region of interest based on an operator manipulation of the candidate stitching region.
13. 13. The stitching method of claim 12 wherein determining the region of interest based on an operator manipulation of the candidate stitching region comprises receiving a selection, framing, or drawing manipulation of the candidate stitching region by an operator to determine the region of interest.
14. 14. The stitching method of claim 11 wherein determining a region of interest from within the candidate stitching region includes identifying at least one anatomical structure within the overlap region and determining the region of interest based on the identified anatomical structure.
15. 15. The stitching method of claim 14 wherein the determining the region of interest based on the identified anatomical structure includes displaying one or more candidate regions of interest comprising the anatomical structure for confirmation or selection, receiving a confirmation or selection of the candidate regions of interest by an operator, and treating the confirmed or selected candidate regions of interest as the regions of interest.
16. 16. A method of stitching X-ray images, comprising: Acquiring a plurality of X-ray images to be spliced; Determining a region of interest on at least one of the X-ray images, the region of interest being located within and smaller than an overlap region between the X-ray image and its stitching-adjacent X-ray image; Splicing a plurality of X-ray images based on the region of interest to obtain a spliced image; and displaying the spliced image.
17. 17. A stitching device for X-ray images, comprising: A memory for storing a program; a processor for implementing the method of any one of claims 1 to 16 by executing a program stored in the memory.
18. 18. An X-ray radiography system, comprising: a head device including a head for emitting X-rays to a subject; An X-ray receiving device including a detector for receiving X-rays transmitted through the subject; A processor for performing the method of any one of claims 1 to 16.

Description

Splicing method and splicing device for X-ray images and X-ray photographing system Technical Field The invention relates to the field of X-ray imaging, in particular to a splicing method and device of X-ray images and an X-ray photography system. Background The radioactive ray imaging device is used as an imaging system commonly used in medical digital imaging, and is widely applied to the fields of physical examination and conventional medical image diagnosis. A radioactive ray imaging apparatus is an apparatus that performs imaging by transmitting radioactive rays (for example, X-rays) through an object to be detected. Taking an X-ray photography system as an example, the imaging speed is high, the radiation dose is low, the image is clear and fine, the whole body can be inspected, and the imaging system has wide application in clinical inspection and becomes one of main auxiliary means for doctors to diagnose diseases. In some scenes, the body position to be shot (such as the spine or the lower limb) cannot be shot completely by one-time X-ray imaging (the shooting body position is not limited to be called as a spliced body position), in this case, the body position to be shot needs to be divided into different areas and X-ray shooting is performed respectively, and then a plurality of X-ray images are spliced together, so that a complete one X-ray image (spliced image) of the body position to be shot is obtained. It is to be understood that the photographing posture does not refer to a certain posture of the subject, but refers to a portion or area of the subject to be photographed. How to stitch together a plurality of X-ray images is a considerable problem. Disclosure of Invention In view of the above, the present invention provides a stitching method, stitching apparatus, and X-ray radiography system for X-ray images, which are described in detail below. According to a first aspect, in one embodiment, there is provided a method for stitching X-ray images, including: Acquiring a plurality of X-ray images to be spliced of the spliced body position; acquiring a candidate stitching region of at least one of the X-ray images, wherein the candidate stitching region of the X-ray image includes at least a portion of an overlap region between the X-ray image and an X-ray image adjacent thereto on stitching; Displaying a plurality of X-ray images on a stitching planning interface, and identifying the candidate stitching areas; receiving the operation of an operator on the splicing planning interface, and determining an interested area in the candidate splicing area; splicing a plurality of X-ray images based on the region of interest to obtain a spliced image of the spliced body position; And displaying the spliced image of the spliced body position. In one embodiment, displaying the plurality of X-ray images on the stitching planning interface includes: Displaying a plurality of X-ray images on the stitching planning interface based on the adjacent position relation of the X-ray images on the stitching, or And displaying the plurality of X-ray images on the splicing planning interface based on the position distribution relation of the plurality of X-ray images in the splicing body position. In one embodiment, the identifying the candidate stitching region includes identifying the candidate stitching region by an area defined by a line. In an embodiment, the receiving the operation of the stitching planning interface by the operator, determining the region of interest in the candidate stitching region includes: Receiving a click operation of an operator on the splicing planning interface in the candidate splicing area, and confirming at least one interest point in the candidate splicing area; and determining a region containing the interest point in the candidate splicing region as the interest region. In an embodiment, the receiving the operation of the stitching planning interface by the operator, determining the region of interest in the candidate stitching region includes: Receiving frame selection operation of an operator on the splicing planning interface in the candidate splicing region, determining a frame selection region as the region of interest based on the frame selection operation, or And receiving drawing operation of an operator on the splicing planning interface in the candidate splicing region, and determining a drawing region based on the drawing operation as the region of interest. In an embodiment, the receiving the operation of the stitching planning interface by the operator, determining the region of interest in the candidate stitching region includes: Identifying and displaying anatomical structure information within the candidate stitching region, the anatomical structure information comprising structural feature points or feature regions; the method comprises the steps of receiving confirmation operation of an operator to confirm the anatomical structure information, wherein the con