CN115227280B - Intelligent exposure control method and device for dentistry - Google Patents
Intelligent exposure control method and device for dentistryInfo
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- CN115227280B CN115227280B CN202210653435.0A CN202210653435A CN115227280B CN 115227280 B CN115227280 B CN 115227280B CN 202210653435 A CN202210653435 A CN 202210653435A CN 115227280 B CN115227280 B CN 115227280B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
- A61B6/512—Intraoral means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
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- Radiology & Medical Imaging (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
本发明提供一种齿科智能曝光控制方法和装置，适用于探测器和所述高压发生器无线连接；所述方法包括：探测器打开曝光窗口；通过所述曝光窗口对待检测区域进行智能识别辐照射野；当满足曝光闸断判定条件时，探测器控制高压发生器闸断曝光；关闭曝光窗口后对探测器进行图像采集。本发明解决齿科拍摄场景中自动曝光控制功能受到限制、传输延迟导致曝光误差等问题，降低了病人所受的曝光剂量。
The present invention provides a method and device for intelligent dental exposure control, suitable for wirelessly connecting a detector to a high-voltage generator. The method comprises: opening an exposure window on the detector; intelligently identifying the irradiation field of the area to be inspected through the exposure window; controlling the high-voltage generator to cut off exposure when the exposure cutoff conditions are met; and capturing images from the detector after closing the exposure window. This invention addresses issues such as limited automatic exposure control and exposure errors caused by transmission delays in dental imaging scenarios, thereby reducing the patient's exposure dose.
Description
Technical Field
The invention relates to the field of flat panel detectors, in particular to an intelligent dental exposure control method and device.
Background
The flat panel detector is a novel detection technology of X-ray images, is known by the characteristics of high imaging speed, high resolution and the like, and is widely applied to the fields of medical detection, nondestructive detection, security inspection, anti-terrorism and the like. In the process of exposing and imaging by the flat panel detector, a user needs to select the line quality and the dose of exposure according to the factors such as the thickness, the density and the like of a photographed object, and the experience dependence is high and the control is difficult.
Currently, conventional AEC (Automatic Exposure Control ) detects exposure dose by means of an ionization chamber (mainly including a gaseous ionization chamber and a solid ionization chamber), and as the exposure dose increases, the output signal voltage increases linearly, and the high voltage generator detects the output signal voltage in real time, and when the voltage reaches a set threshold voltage, the high voltage generator switches off exposure. And the traditional AEC needs to add an ionization chamber on the surface of the flat panel detector, and the ionization chamber is connected with a high-voltage generator through a special cable, so that the structure complexity and the cost are high. In addition, the detector is placed in the mouth, the visual field is difficult to realize corresponding to the tooth position, and the detector cannot be well adapted to various application scenes of the detector for the internal tooth family of the mouth.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention is directed to providing a dental intelligent exposure control method and apparatus, which are used for solving the problems of limitation of the use scene and exposure error caused by transmission delay in the intelligent exposure process in the prior art.
To achieve the above and other related objects, the present invention provides a dental intelligent exposure control method, which is suitable for wireless connection between a detector and a high voltage generator, and the method comprises:
the detector opens an exposure window;
Intelligent identification of the radiation irradiation field is carried out on the area to be detected through the exposure window;
When the exposure gate-off judging condition is met, the detector controls the gate-off exposure of the high-voltage generator;
and after the exposure window is closed, the detector is subjected to image acquisition.
Preferably, the method further comprises detecting in real time before the detector opens the exposure window to determine whether the exposure opening determination condition is satisfied.
Preferably, the detector also automatically acquires link delay information between the detector and the high-voltage generator when detecting in real time.
Preferably, the exposure start determination condition is a real-time gray value increase detected by the detector.
Preferably, the exposure gate-off judging condition comprises a first closing condition or a second closing condition, wherein the first closing condition is that the actual exposure time is greater than or equal to a set time threshold value, and the second closing condition is that the exposure dose is greater than or equal to a set dose threshold value.
Preferably, a gate-off command is generated according to the exposure gate-off determination condition and the link delay time, and the gate-off exposure of the high voltage generator is controlled according to the gate-off command.
Preferably, the smart identification radiation exposure field is determined by means of a plurality of partial or full field scans.
Preferably, when the radiation exposure field is determined by the plurality of partial fields of view, the exposure dose reaches the set dose threshold value such that the gray values of the plurality of partial fields of view reach the set dose threshold value according to a set logical relationship.
Preferably, the set logical relationship is a weighted average or logical and or logical or.
To achieve the above and other related objects, the present invention also provides an intelligent exposure control device for dentistry, which comprises an exposure judgment control module, an intelligent recognition module, an exposure breaking control module and an image acquisition module;
The exposure judgment control module is configured to open an exposure window by the detector;
the intelligent recognition module is configured to intelligently recognize the irradiation field of radiation through the exposure window in the area to be detected;
the closing control module is configured to control the high-voltage generator to be subjected to gate-off exposure by the detector when the exposure gate-off judging condition is met;
the image acquisition module is configured to acquire images of the detector after closing the exposure window.
As described above, the dental intelligent exposure control method and device of the invention have the following beneficial effects:
the intelligent dental exposure control method expands the application of automatic exposure control to the intra-oral dental detector, realizes the accurate control of automatic exposure gate breakage, is applicable to both wired and wireless signal transmission links, can reduce the complexity and cost of a system, can be highly programmable, is convenient for adding functions such as logic selection and the like, thereby promoting the further popularization of the intelligent exposure control technology and reducing exposure dose errors.
Drawings
Fig. 1 is a schematic flow chart of the intelligent dental exposure control method of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Please refer to fig. 1. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
The detector is arranged in a medical system (including a system using a flat panel detector such as DR, CT and security inspection machine), the detector is connected with a computer to realize instruction interaction and image transmission, and meanwhile, the detector is connected with a high-voltage control box in a wireless way and is connected with a high-voltage generator, or the detector is directly connected with the high-voltage generator in a wireless way.
The intelligent dental exposure control method is suitable for wireless connection of the detector and the high-voltage generator, and comprises the following steps:
s1, opening an exposure window by a detector;
Before executing the step, the invention needs to detect whether the detector meets the exposure opening judging condition, and opens the exposure window after meeting the exposure opening judging condition, otherwise, the invention always circularly judges whether the exposure opening judging condition is met. The exposure start judging condition is that the real-time gray value detected by the detector is increased, and as other embodiments, the real-time gray value can be larger than a preset threshold.
In the embodiment of the invention, after the detector is started, the on-off condition between the detector and the high-voltage generator and the link delay information, namely the link delay time, are detected in real time, after the detector is preheated, the exposure breaking dosage threshold value is preset, and then the exposure breaking control can be carried out and the graph is acquired.
The detector itself also includes a processor, and can detect gray scale.
S2, intelligently identifying a radiation irradiation field through the exposure window in the area to be detected;
wherein the irradiation field is a tooth, gum and other areas;
In an embodiment of the invention, the intelligent identification radiation irradiation field position is determined by means of a plurality of local field-of-view or full field-of-view scans. Specifically, the irradiation field is selected by gray scale comparison through a plurality of fields of preset values, or the area covered by the teeth can be automatically identified as the irradiation field according to the image gray scale detection result through full-field scanning. For example, several large teeth deep in the mouth may be used as the irradiation field, the intermediate incisors may be used as the irradiation field, the teeth in the entire mouth may be used as the irradiation field, and the teeth and gums may be used as the irradiation field.
S3, when the exposure gate-off judging condition is met, the detector controls the gate-off exposure of the high-voltage generator;
In the invention, the exposure gate-off judging conditions comprise a first closing condition or a second closing condition, wherein the first closing condition is that the actual exposure time is greater than or equal to a set time threshold value, and the second closing condition is that the exposure dose is greater than or equal to a set dose threshold value.
Specifically, the first closing condition indicates that the irradiation field is not obtained after the detector is opened for a long time, and the detector does not need to work, so that the exposure window needs to be closed.
Specifically, the second closing condition indicates that the exposure window needs to be closed to stop exposure after the exposure dose reaches the preset value. In the present application, the expression is equal to or more than.
When the radiation irradiation field is determined through the plurality of local fields, the exposure dose reaches the set dose threshold, and the gray values of the plurality of local fields reach the set dose threshold according to the set logic relationship, namely, the gray values of the plurality of local fields are compared and judged with the set dose threshold according to the preset logic relationship.
In the embodiment of the invention, the set logic relationship is, but not limited to, weighted average, logical AND, logical OR, etc., when the set logic relationship is logical AND, the second closing condition is that the gray values of the multiple local fields of view are all required to reach the set dose threshold, that is, the minimum gray value of the gray values of the multiple local fields of view reaches the set dose threshold, when the set logic relationship is logical OR, the second closing condition is that the gray value of any local field of view reaches the set dose threshold, that is, the maximum gray value of the gray values of the multiple local fields of view reaches the set dose threshold, when the set logic relationship is weighted average, the second closing condition is that the average is calculated according to the weight of each local field of view, and the average value reaches the set dose threshold.
The invention considers that the link delay exists between the detector and the high-voltage generator in the information transmission process, so that a closing instruction is required to be issued before the detector exposure window is actually closed, thereby ensuring that the detector is accurately controlled to close the exposure window and realizing the exposure gate breaking.
Therefore, the invention generates the gate-off instruction according to the exposure gate-off judging condition and the link delay time, and controls the gate-off exposure of the high voltage generator according to the gate-off instruction.
Specifically, when the first closing condition is that the opening time of the exposure window is longer than the set time, the detector is considered that the irradiation field is not acquired, the exposure window needs to be closed, if the closing instruction is closing after the exposure breaking judgment condition t1 is met, and meanwhile, the link delay time is t2, wherein t2 is less than t1, then the control instruction needs to be sent at the time of t1-t 2.
S4, after the exposure window is closed, image acquisition is carried out on the detector.
The detector is based on the irradiation field of intelligent identification, and realizes accurate exposure dose control of the region to be detected under the condition of precisely controlling the exposure gate of the high-voltage generator.
Device example:
In order to achieve the technical aim, the invention also provides an intelligent dental exposure control device, which comprises an exposure judging module, an intelligent identification module, an exposure switching-off control module and an image acquisition module;
the exposure judging module is configured to open an exposure window by the detector;
the intelligent recognition module is configured to intelligently recognize the irradiation field of radiation through the exposure window in the area to be detected;
the exposure gate-off module is configured to control the gate-off exposure of the high-voltage generator by the detector when the exposure gate-off judging condition is met;
the image acquisition module is configured to acquire images of the detector after closing the exposure window.
As a further limitation of the present invention, the intelligent recognition module is determined in a manner that recognizes through multiple partial or full field scans.
In the embodiment of the invention, the link delay between the detector and the high-voltage generator is considered in the process of information transmission, so that a closing instruction is required to be issued before the detector exposure window is actually closed, thereby ensuring that the detector is accurately controlled to close the exposure window and realizing the exposure gate breaking. Therefore, the invention generates a closing instruction according to the exposure gate-off judging condition and the link delay time, and controls the detector to close the exposure window according to the closing instruction.
In summary, the invention provides an intelligent exposure control technology capable of automatically identifying tooth positions, solves the problems of exposure errors and the like caused by limited use scenes and transmission delay in the prior art, promotes further popularization of the intelligent exposure control technology, and reduces exposure dose errors. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. The intelligent dental exposure control method is characterized by being suitable for wireless connection of a detector and a high-voltage generator, and comprises the following steps:
the detector opens an exposure window;
Intelligently identifying an irradiation field of radiation in a region to be detected through the exposure window, wherein the irradiation field is a tooth and/or gum region;
When the exposure gate-off judging condition is met, the detector controls the gate-off exposure of the high-voltage generator;
After closing the exposure window, carrying out image acquisition on the detector;
detecting in real time before the detector opens the exposure window to judge whether the exposure opening judging condition is met;
and when the detector detects in real time, the link delay information between the detector and the high-voltage generator is also automatically acquired.
2. The dental intelligent exposure control method according to claim 1, wherein the exposure start determination condition is a real-time gray value increase detected by a detector.
3. The intelligent dental exposure control method according to claim 1, wherein the exposure gate-off determination condition includes a first closing condition or a second closing condition, the first closing condition is that an actual exposure time is equal to or longer than a set time threshold, and the second closing condition is that an exposure dose is equal to or longer than a set dose threshold.
4. The intelligent exposure control method according to claim 1, wherein a gate-off instruction is generated according to the exposure gate-off determination condition and the link delay time, and the gate-off exposure of the high voltage generator is controlled according to the gate-off instruction.
5. The method of claim 1, wherein the smart identification radiation exposure field is determined by means of a plurality of partial field or full field scans.
6. The dental intelligent exposure control method according to claim 5, wherein when the irradiation field is determined by a plurality of partial fields of view, the exposure dose reaches the set dose threshold value, and the gray values of the plurality of partial fields of view reach the set dose threshold value in accordance with a set logical relationship.
7. The method of claim 6, wherein the set logic relationship is a weighted average or a logical and or a logical or.
8. An intelligent exposure control device for dentistry is characterized by comprising an exposure judgment control module, an intelligent identification module, an exposure breaking control module and an image acquisition module;
The exposure judgment control module is configured to open an exposure window by the detector;
The intelligent recognition module is configured to intelligently recognize radiation irradiation fields in the area to be detected through the exposure window, wherein the irradiation fields are tooth and/or gum areas;
the exposure gate-off control module is configured to control the high-voltage generator to gate-off exposure when the exposure gate-off judgment condition is met;
the image acquisition module is configured to acquire images of the detector after closing the exposure window.
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| CN202210653435.0A CN115227280B (en) | 2022-06-09 | 2022-06-09 | Intelligent exposure control method and device for dentistry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811654A (en) * | 2019-11-12 | 2020-02-21 | 飞瑞医疗器械(嘉兴)有限公司 | X-ray exposure control system and control method thereof |
| CN112690811A (en) * | 2020-12-23 | 2021-04-23 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure control system and automatic exposure control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2664398B1 (en) * | 1990-07-06 | 1992-10-16 | Gen Electric Cgr | METHOD FOR THE AUTOMATIC DETERMINATION OF THE DURATION OF EXPOSURE OF A RADIOGRAPHIC FILM FROM A RADIOLOGY CASSETTE WITH AN INCORPORATED DETECTOR CELL AND SYSTEM FOR IMPLEMENTING SAME. |
| JP5558538B2 (en) * | 2011-12-08 | 2014-07-23 | 富士フイルム株式会社 | Radiation imaging apparatus, radiation imaging system, control method and control program for radiation imaging apparatus |
| CN112997102B (en) * | 2018-06-25 | 2024-09-10 | Kth控股公司 | Radiation detection system and method |
| CN109618113B (en) * | 2019-03-11 | 2019-05-21 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure control method and auto-exposure control component system |
| CN112312636B (en) * | 2020-12-23 | 2021-05-07 | 上海奕瑞光电子科技股份有限公司 | X-ray automatic exposure control method and system |
| CN112738391B (en) * | 2020-12-23 | 2023-04-18 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure control method and system |
| CN114271845A (en) * | 2021-12-16 | 2022-04-05 | 深圳圣诺医疗设备股份有限公司 | Collimator control system and method for mammary X-ray |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110811654A (en) * | 2019-11-12 | 2020-02-21 | 飞瑞医疗器械(嘉兴)有限公司 | X-ray exposure control system and control method thereof |
| CN112690811A (en) * | 2020-12-23 | 2021-04-23 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure control system and automatic exposure control method |
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