Oral cbct device image reconstruction method

Abstract

The application discloses an oral cavity CBCT equipment image reconstruction method, and the application determines the closest or coincident image by comparing the obtained image with a standard image, so as to realize the image reconstruction of the oral cavity CBCT equipment, and the method can obtain accurate images, reduce unnecessary rephotography, save the shooting time, and effectively avoid the shaking of the head of the patient due to nervousness during the shooting process, the shaking of the body due to the uncontrollable shaking of the patient, and the influence of the consistency of the data after the shooting image reconstruction, so that the great interference on the clinical diagnosis is avoided, and the method is beneficial to the use in reality.

Description

Technical Field

[0001] This invention relates to the field of medical imaging, specifically a method for image reconstruction using a dental CBCT device. Background Technology

[0002] Cone beam computed tomography (CBCT) for the oral and maxillofacial region is widely used in oral and maxillofacial surgery, orthodontics, orthognathic surgery, implantology, endodontics, and periodontics. CBCT features low radiation dose, high-resolution images, and a suitable imaging range, making it the most widely used dental imaging equipment, providing more intuitive and accurate imaging data for multidisciplinary clinical diagnosis and evaluation.

[0003] However, the complete imaging process of dental CBCT equipment takes tens of seconds. During the imaging process, many patients are nervous and their heads tend to shake slightly, and their bodies may shake involuntarily, which affects the consistency of the data after image reconstruction. This results in blurry or multiple images in the reconstructed images, which greatly interferes with clinical diagnosis. Therefore, there is an urgent need for an image reconstruction method for dental CBCT equipment to solve the above technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a method for image reconstruction using a dental CBCT device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A method for reconstructing images using a dental CBCT device includes the following steps:

[0007] Step 1: Calibrate the central calibration point of the image captured by the dental CBCT equipment. Based on the location of the central calibration point, mark multiple smaller calibration points around it.

[0008] Using the central calibration point as the center point, determine the standard image captured by the dental CBCT equipment;

[0009] Step 2: During oral imaging, acquire the image data captured by the oral CBCT equipment to determine whether the images were captured according to the calibrated calibration points;

[0010] Step 3: Filter the captured images. By comparing the images obtained in Step 2 with the standard images, remove the images captured at non-calibrated points, and thus obtain the images with the calibration points as coordinates.

[0011] Step 4: Based on the positional relationship between the small calibration point and the central calibration point, and using the central calibration point as a basis, the image taken with the small calibration point as the center point is offset. The resulting image is compared with the standard image to determine the closest or overlapping image, thereby realizing the image reconstruction of the dental CBCT equipment.

[0012] As a further aspect of the present invention: during oral imaging, a center point is randomly generated, and a circular scan is performed with the center point as the center to complete the imaging of the small object, thereby obtaining the captured image.

[0013] As a further aspect of the present invention: the standard image is scanned once in a circle with the center calibration point as the center point and the center point as the center. One circular scan obtains half of the image data, and two circular scans obtain the complete image data, thereby obtaining the image of a large object.

[0014] As a further aspect of the present invention: the dental CBCT device includes an image data acquisition module, a control module, a calculation module, and an image comparison module, thereby realizing image reconstruction of the dental CBCT device.

[0015] As a further aspect of the present invention: the image data acquisition module is used to acquire the image data captured by the oral CBCT device during oral imaging.

[0016] As a further aspect of the present invention: the control module is responsible for the operation and control of the entire oral CBCT device, thereby realizing the normal operation of the oral CBCT device, and is the core control module of the oral CBCT device.

[0017] As a further aspect of the present invention: the calculation module performs position calculation on the image taken with the small calibration point as the center point, thereby obtaining the position offset ratio based on the position calculation, and then determining the final image based on the center calibration point.

[0018] As a further aspect of the present invention, the image comparison module compares the image obtained by offsetting the image taken with the small calibration point as the center point with the standard image, based on the center calibration point, to determine the closest or overlapping image, thereby realizing image reconstruction.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention utilizes the positional relationship between a small calibration point and a central calibration point. Based on the central calibration point, it offsets the position of images captured with the small calibration point as the center point, compares the resulting images with a standard image, and thus determines the closest or overlapping image. This enables image reconstruction using dental CBCT equipment. The method of this invention can obtain accurate images, reduce unnecessary retakes, save shooting time, and effectively avoid the slight head shaking and involuntary body tremors that often occur during the shooting process due to patient tension. These tremors can affect the consistency of the reconstructed image data, preventing significant interference with clinical diagnosis and facilitating practical use. Attached Figure Description

[0021] Figure 1 A flowchart of the image reconstruction method for dental CBCT equipment. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] Please see Figure 1 A method for reconstructing images using a dental CBCT device includes the following steps:

[0025] Step 1: Calibrate the central calibration point of the image captured by the dental CBCT equipment. Based on the location of the central calibration point, mark multiple smaller calibration points around it.

[0026] Using the central calibration point as the center point, determine the standard image captured by the dental CBCT equipment;

[0027] Step 2: During oral imaging, acquire the image data captured by the oral CBCT equipment to determine whether the images were captured according to the calibrated calibration points;

[0028] Step 3: Filter the captured images. By comparing the images obtained in Step 2 with the standard images, remove the images captured at non-calibrated points, and thus obtain the images with the calibration points as coordinates.

[0029] Step 4: Based on the positional relationship between the small calibration point and the central calibration point, and using the central calibration point as a basis, the image taken with the small calibration point as the center point is offset. The resulting image is compared with the standard image to determine the closest or overlapping image, thereby realizing the image reconstruction of the dental CBCT equipment.

[0030] It should be noted that the above steps can achieve image reconstruction using dental CBCT equipment.

[0031] Example 2

[0032] Please see Figure 1 A method for reconstructing images using a dental CBCT device includes the following steps:

[0033] Step 1: Calibrate the central calibration point of the image captured by the dental CBCT equipment. Based on the location of the central calibration point, mark multiple smaller calibration points around it.

[0034] Using the central calibration point as the center point, determine the standard image captured by the dental CBCT equipment;

[0035] Step 2: During oral imaging, acquire the image data captured by the oral CBCT equipment to determine whether the images were captured according to the calibrated calibration points;

[0036] Step 3: Filter the captured images. By comparing the images obtained in Step 2 with the standard images, remove the images captured at non-calibrated points, and thus obtain the images with the calibration points as coordinates.

[0037] Step 4: Based on the positional relationship between the small calibration point and the central calibration point, and using the central calibration point as a basis, the image taken with the small calibration point as the center point is offset. The resulting image is compared with the standard image to determine the closest or overlapping image, thereby realizing the image reconstruction of the dental CBCT equipment.

[0038] Preferably, in this embodiment, during oral imaging, a center point is randomly generated, and a circular scan is performed with the center point as the center to complete the imaging of the small object, thereby obtaining the captured image.

[0039] Preferably, in this embodiment, the standard image is obtained by performing a circular scan with the center calibration point as the center point and the center point as the center of the circle. One circular scan obtains half of the image data, and two circular scans obtain the complete image data, thereby obtaining the image of the large object.

[0040] It should be specifically explained that by obtaining images of small objects and large objects, a circular scan is performed with the center calibration point as the center point and the center point as the center. One circular scan obtains half of the image data, and two circular scans obtain the complete image data, thus obtaining the image of the large object. This allows for better comparison with the image of the small object, making it easier to obtain the closest or overlapping image.

[0041] Example 3

[0042] Please see Figure 1 A method for reconstructing images using a dental CBCT device includes the following steps:

[0043] Step 1: Calibrate the central calibration point of the image captured by the dental CBCT equipment. Based on the location of the central calibration point, mark multiple smaller calibration points around it.

[0044] Using the central calibration point as the center point, determine the standard image captured by the dental CBCT equipment;

[0045] Step 2: During oral imaging, acquire the image data captured by the oral CBCT equipment to determine whether the images were captured according to the calibrated calibration points;

[0046] Step 3: Filter the captured images. By comparing the images obtained in Step 2 with the standard images, remove the images captured at non-calibrated points, and thus obtain the images with the calibration points as coordinates.

[0047] Step 4: Based on the positional relationship between the small calibration point and the central calibration point, and using the central calibration point as a basis, the image taken with the small calibration point as the center point is offset. The resulting image is compared with the standard image to determine the closest or overlapping image, thereby realizing the image reconstruction of the dental CBCT equipment.

[0048] Preferably, in this embodiment, during oral imaging, a center point is randomly generated, and a circular scan is performed with the center point as the center to complete the imaging of the small object, thereby obtaining the captured image.

[0049] Preferably, in this embodiment, the standard image is obtained by performing a circular scan with the center calibration point as the center point and the center point as the center of the circle. One circular scan obtains half of the image data, and two circular scans obtain the complete image data, thereby obtaining the image of the large object.

[0050] Preferably, in this embodiment, the dental CBCT device includes an image data acquisition module, a control module, and an image comparison module, thereby realizing image reconstruction of the dental CBCT device.

[0051] Preferably, in this embodiment, the image data acquisition module acquires the image data captured by the oral CBCT device during oral imaging.

[0052] Preferably, in this embodiment, the control module is the core control module of the oral CBCT device, which controls the operation of the entire oral CBCT device to achieve normal operation of the oral CBCT device.

[0053] Preferably, in this embodiment, the image comparison module compares the image obtained by offsetting the image taken with the small calibration point as the center point with the standard image, based on the center calibration point, to determine the closest or overlapping image, thereby realizing image reconstruction.

[0054] It should be specifically explained that: by setting up an image data acquisition module, a control module, and an image comparison module in the dental CBCT equipment, the image reconstruction of the dental CBCT equipment can be realized. The image data acquisition module acquires the image data captured by the dental CBCT equipment, and the image comparison module compares the image obtained after positional offset of the image captured with the small calibration point as the center point with the standard image, based on the center calibration point, to determine the closest or overlapping image, thereby realizing image reconstruction.

[0055] Example 4

[0056] Please see Figure 1 A method for reconstructing images using a dental CBCT device includes the following steps:

[0057] Step 1: Calibrate the central calibration point of the image captured by the dental CBCT equipment. Based on the location of the central calibration point, mark multiple smaller calibration points around it.

[0058] Using the central calibration point as the center point, determine the standard image captured by the dental CBCT equipment;

[0059] Step 2: During oral imaging, acquire the image data captured by the oral CBCT equipment to determine whether the images were captured according to the calibrated calibration points;

[0060] Step 3: Filter the captured images. By comparing the images obtained in Step 2 with the standard images, remove the images captured at non-calibrated points, and thus obtain the images with the calibration points as coordinates.

[0061] Step 4: Based on the positional relationship between the small calibration point and the central calibration point, and using the central calibration point as a basis, the image taken with the small calibration point as the center point is offset. The resulting image is compared with the standard image to determine the closest or overlapping image, thereby realizing the image reconstruction of the dental CBCT equipment.

[0062] Preferably, in this embodiment, during oral imaging, a center point is randomly generated, and a circular scan is performed with the center point as the center to complete the imaging of the small object, thereby obtaining the captured image.

[0063] Preferably, in this embodiment, the standard image is obtained by performing a circular scan with the center calibration point as the center point and the center point as the center of the circle. One circular scan obtains half of the image data, and two circular scans obtain the complete image data, thereby obtaining the image of the large object.

[0064] Preferably, in this embodiment, the dental CBCT device includes an image data acquisition module, a control module, a calculation module, and an image comparison module, thereby realizing image reconstruction of the dental CBCT device.

[0065] Preferably, in this embodiment, the image data acquisition module acquires the image data captured by the oral CBCT device during oral imaging.

[0066] Preferably, in this embodiment, the control module is the core control module of the oral CBCT device, which controls the operation of the entire oral CBCT device to achieve normal operation of the oral CBCT device.

[0067] Preferably, in this embodiment, the calculation module performs position calculation on the image taken with the small calibration point as the center point, thereby obtaining the position offset ratio based on the position calculation, and then determining the final image based on the center calibration point.

[0068] Preferably, in this embodiment, the image comparison module compares the image obtained by offsetting the image taken with the small calibration point as the center point with the standard image, based on the center calibration point, to determine the closest or overlapping image, thereby realizing image reconstruction.

[0069] It should be specifically explained that: by setting up the calculation module of the oral CBCT equipment, the position of the image taken with the small calibration point as the center point is calculated, and the position offset ratio is obtained based on the position calculation, thereby determining the final image based on the center calibration point.

[0070] It should be noted that this invention utilizes the positional relationship between the small calibration point and the central calibration point, and uses the central calibration point as a basis to offset the position of the image taken with the small calibration point as the center point. The resulting image is then compared with a standard image to determine the closest or overlapping image, thereby realizing image reconstruction of the dental CBCT device.

[0071] The method of this invention can obtain accurate images, reduce unnecessary retakes, save shooting time, and effectively avoid the slight head shaking and involuntary body tremors that many patients tend to have due to nervousness during the shooting process, which can affect the consistency of the data after image reconstruction and avoid significant interference with clinical diagnosis, thus benefiting practical use.

[0072] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oral CBCT device image reconstruction method, characterized by, The method comprises the following steps: Step 1: calibrate the center calibration point of the image taken by the oral CBCT device, and calibrate a plurality of small calibration points around the center calibration point according to the position of the center calibration point; Step 2: when taking the oral cavity, obtain the image data taken by the oral CBCT device, and determine whether the image is taken according to the calibrated calibration point; Step 3: screen the taken image, compare the image obtained in step 2 with the standard image, remove the image taken at the non-calibration point, and obtain the image with the calibration point as the coordinate; Step 4: based on the position relationship between the small calibration point and the center calibration point, the image taken with the small calibration point as the center point is offset based on the center calibration point, and the obtained image is compared with the standard image to determine the closest or coincident image, thereby realizing the image reconstruction of the oral CBCT device. When taking the oral cavity, a center point is randomly generated, and a circumferential scan is performed with the center point as the center, the small object imaging is completed, and the taken image is obtained.

2. The method of claim 1, wherein, The standard image is obtained by performing a circumferential scan with the center calibration point as the center point and the center point as the center, obtaining half of the image data by one circumferential scan, and obtaining complete image data by two circumferential scans, thereby obtaining large object imaging.

3. The method of claim 1, wherein, The oral CBCT device comprises an image data acquisition module, a control module, a calculation module and an image comparison module, thereby realizing the image reconstruction of the oral CBCT device.

4. The method of claim 1, wherein, The image data acquisition module is used to obtain the image data taken by the oral CBCT device when taking the oral cavity.

5. The method of claim 4, wherein, The control module is used to control the operation of the entire oral CBCT device, thereby realizing the normal operation of the oral CBCT device, and is the core control module of the oral CBCT device.

6. The method of claim 4, wherein, The calculation module is used to calculate the position of the image taken with the small calibration point as the center point, thereby obtaining the position offset ratio according to the position calculation, and determining the final image based on the center calibration point.

7. The method of claim 4, wherein, The image comparison module is used to compare the image obtained by offsetting the image taken with the small calibration point as the center point based on the center calibration point with the standard image, thereby determining the closest or coincident image, and realizing the image reconstruction.

8. The method of claim 4, wherein, ​

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