CN113662568B - DR fusion imaging system and method - Google Patents
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Abstract
The invention discloses a DR fusion imaging system and a method, wherein the system comprises an information acquisition device and an information processing device, the information acquisition device comprises a DR imaging mechanism, a surface geometry acquisition mechanism and a visible light imaging mechanism, the DR imaging mechanism generates a DR image of a detected object, the surface geometry acquisition mechanism generates a three-dimensional surface geometry model of the detected object, and the visible light imaging mechanism generates a visible light image of the detected object; the information processing apparatus generates a depth image matching the DR image based on the three-dimensional surface geometric model and the DR image, generates a base material decomposition image based on the depth image and the DR image, and generates a DR enhanced image based on the base material decomposition image. The invention has the capability of decomposing substances, can obtain a decomposed image of a base material, effectively improves the DR image quality, improves the detection capability of early defects, and reduces the radiation dose of DR imaging.
Description
Technical Field
The invention relates to the field of X-ray imaging, in particular to a DR fusion imaging system and a DR fusion imaging method.
Background
The material decomposition is one of research hotspots in the current X-ray imaging field, can realize quantitative analysis of materials, improve the quality of DR images and the capability of early defect detection by using the material decomposition, and has important application value in the fields of medical imaging, safety inspection, nondestructive detection and the like. Dual-energy CT and multi-energy CT have the ability to decompose substances. The dual-energy CT performs scanning imaging on an object to be detected by using X rays with two different energy spectrums, and compared with the traditional CT imaging technology under the traditional single energy spectrum, the dual-energy CT can realize the decomposition of a base material by using two attenuation information; the multi-energy CT utilizes the photon counting detector to detect photons of multiple energy segments, and compared with the dual-energy CT, the multi-energy CT can realize the decomposition of more base materials and has more important application value.
The DR imaging system has the advantages of low cost, convenient and flexible use and the like, is widely applied to the fields of medical imaging, safety inspection, nondestructive detection and the like, is limited by the digital X-ray DR imaging principle, and is not yet available at present.
Disclosure of Invention
The technical problem to be solved by the present disclosure is to provide a DR fusion imaging system with material decomposition capability, and to achieve DR image enhancement based on material decomposition, aiming at the defects related to the background art.
The invention adopts the following technical scheme for solving the technical problems:
According to one aspect of the present disclosure, there is provided a DR fusion imaging system including an information acquisition apparatus and an information processing apparatus; the information acquisition device comprises a DR imaging mechanism, a surface geometry acquisition mechanism and a visible light imaging mechanism, wherein the DR imaging mechanism is configured to generate a DR image of a detected object, the surface geometry acquisition mechanism is configured to generate a three-dimensional surface geometry model of the detected object, and the visible light imaging mechanism is configured to generate a visible light image of the detected object; the information processing device is in data communication with the information acquisition device and is configured to acquire a visible light image and a three-dimensional surface geometric model of the detected object provided by the surface geometric acquisition mechanism and a DR image provided by the DR imaging mechanism, and is further configured to generate a depth image matched with the DR image based on the three-dimensional surface geometric model and the DR image, and is further configured to generate a base material decomposition image based on the depth image and the DR image.
In the DR fusion imaging system, wherein the surface geometry acquisition mechanism is configured as an active surface geometry acquisition mechanism to generate a three-dimensional surface geometry model.
In the DR fusion imaging system, the DR imaging mechanism is configured to receive the three-dimensional surface geometry model and adjust a collimator shape according thereto and emit X-rays to irradiate the detected object and detect X-rays penetrating the detected object to generate a DR image.
The DR fusion imaging system is an imaging system for including living beings and objects, and the detected object includes living beings and objects.
The DR fusion imaging system also comprises a voice prompt device which is in data communication with the information processing device and is used for prompting whether the gesture of the detected object is correct or not, and prompting whether the identity of the detected object is correct or not when the detected object is a person.
In the DR fusion imaging system, the information collecting device further includes a certificate information collecting mechanism, the certificate information collecting mechanism is in data communication with the information processing device, when the detected object is a human body, the certificate information collecting mechanism collects certificate information of the detected person, and the information processing device is further configured to verify the identity of the detected person based on the certificate information of the detected person and the visible light image and/or the three-dimensional surface geometric model.
In the DR fusion imaging system, the information processing apparatus is further configured to identify a pose of the detected object according to the visible light image and the three-dimensional surface geometric model of the detected object, further perform identity verification when the detected object is a human body, not start DR imaging if the identity verification is not passed, and perform language prompt through the voice prompt apparatus, correct the pose of the detected object if the pose does not meet the detection requirement, and then restart DR imaging; when the detected object is an article or other organisms, if the pose does not meet the detection requirement, correcting the pose of the detected object and then restarting DR imaging.
In the DR fusion imaging system, wherein the information processing apparatus is further configured to generate a DR-enhanced image based on the base material decomposition image.
In the DR fusion imaging system, the system further comprises an image display device which is in data communication with the information processing device, wherein the image display device can display a three-dimensional surface geometric model and/or a visible light image and/or a DR image and/or a depth image and/or a base material decomposition image and/or a DR enhancement image.
According to another aspect of the present disclosure, there is provided a DR fusion imaging method based on imaging and processing using the DR fusion imaging system described above, the method comprising the steps of:
step 1: the detected object enters a specified detection area and is adjusted to wait for detection, and when the detected object is a human body, a certificate of the detected object is placed on a certificate information acquisition unit;
Step 2: the surface geometry acquisition mechanism generates a three-dimensional surface geometry model and sends the three-dimensional surface geometry model to the information processing device; the visible light imaging mechanism generates a visible light image of the detected object and sends the visible light image to the information processing device; when the detected object is a human body, the certificate information acquisition unit acquires certificate information of the detected person and sends the certificate information to the information processing device;
Step 3: when the detected object is a human body, the identity of the detected person is verified: the information processing device processes the visible light image and the three-dimensional surface geometric model, compares and checks the visible light image and the three-dimensional surface geometric model with certificate information of detected personnel, and sends an identity verification result to the image display device and the voice device;
step 4: the information processing device processes the visible light image and the three-dimensional surface geometric model, and recognizes and judges the pose of the detected object;
Step 5: the DR imaging mechanism receives the three-dimensional surface geometric model and adjusts the shape of a collimator in the DR imaging mechanism according to the three-dimensional surface geometric model, and then emits X-rays to irradiate the detected object and detects the X-rays penetrating through the detected object to generate a DR image;
step 6: the information processing device registers the three-dimensional surface geometric model and the DR image to obtain a depth image matched with the DR image;
Step 7: the information processing device performs substance decomposition by using the depth image and the DR image to obtain a base material decomposition image;
Step 8: the information processing device enhances the partial DR image by using the base material decomposition image to generate a DR enhanced image;
Step 9: the image display device displays a three-dimensional surface geometric model and/or a visible light image and/or a DR image and/or a depth image and/or a base material decomposition image and/or a DR enhancement image of the detected object.
Compared with the prior art, the technical scheme provided by the invention has the following technical effects:
The fusion surface geometric acquisition, visible light imaging, DR imaging and information processing and analysis method has the capability of decomposing substances, can obtain a base material decomposed image, can effectively improve DR image quality, improve early defect detection capability, can effectively avoid extra radiation of DR imaging, and can reduce the radiation dose of DR imaging.
Drawings
FIG. 1 is a schematic diagram of a DR fusion imaging system illustrating portions of the DR fusion imaging system and their connection relationships according to one embodiment of the present disclosure;
Fig. 2 is a flowchart of a human DR fusion imaging method according to one embodiment of the present disclosure.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings.
In the following embodiments, the present invention is described by taking a DR fusion imaging system in which a detected object is a human body as an example, but this should not be construed as limiting the present invention.
One embodiment of the DR fusion imaging system of the present disclosure is illustrated in fig. 1, which is implemented as a DR fusion imaging system for human body detection, including an information acquisition means, an information processing means 20, image display means 31 and 32, and voice prompt means 41 and 42.
The information acquisition device includes: a DR imaging mechanism 11 capable of generating a DR image of a detected object; a surface geometry acquisition means 12 capable of generating a three-dimensional surface geometry model of the object under test; a visible light imaging mechanism 13 capable of generating a visible light image of the detected object; also included is a credential information collection mechanism 14 that is capable of acquiring identity information of the person under test, including a photograph of the head. The DR imaging mechanism 11 may be configured to receive the three-dimensional surface geometry model and adjust the collimator shape according thereto and emit X-rays to irradiate the detected object and detect X-rays penetrating the detected object to generate a DR image. The DR imaging mechanism 11 may be, for example, a DR human imager 11. The surface geometry acquisition mechanism 12 may be, for example, a depth camera 12. The depth camera 12 may be mounted on the DR imaging mechanism 11, or may be disposed at any position where a geometric model of the human surface can be acquired. The visible light imaging mechanism 13 may be, for example, a wide-angle camera 13. The wide-angle camera 13 may be mounted on the DR imaging mechanism 11, or may be mounted on the surface geometry acquisition mechanism 12, or may be provided at any position where a human body image can be acquired.
The information processing device 20 is in data communication with an information acquisition device. Specifically, the information processing apparatus 20 can obtain the above DR image, three-dimensional surface geometric model, visible light image, and identity information of the person to be detected. The information processing device 20 may also send information to the information acquisition device, for example, instructing the information acquisition device to begin acquiring DR images and/or three-dimensional surface geometric models and/or visible light images.
The information processing device 20 is also in data communication with image display devices 31 and 32. The worker-side image display device 31 is provided in the work room, and the equipment-side image display device 32 is provided between the equipment for the worker to view the detection information and the image.
The information processing device 20 is also in data communication with voice prompt means 41 and 42. The staff-side voice prompt device 41 is disposed in the working room, and the equipment-side voice prompt device 42 is disposed between the equipment for, for example, voice prompt or communication between the staff and the detected staff.
The information processing apparatus 20 can be configured to recognize the pose of the person to be detected based on the visible light image and the three-dimensional human body surface geometric model, correct the pose of the person to be detected if the pose does not meet the detection requirement, and then restart DR imaging.
The information processing apparatus 20 can be configured to verify the identity of the person under test based on the certificate information of the person under test and the visible light image and/or three-dimensional surface geometric model, and if the identity verification is not passed, not to start DR imaging, and to perform language prompting.
The information processing apparatus 20 can be configured to generate a depth image matching the DR image based on the three-dimensional surface geometric model and the DR image.
The information processing apparatus 20 can be configured to generate a base material decomposition image based on the depth image and the DR image.
The information processing apparatus 20 can be configured to generate a DR-enhanced image based on the base material decomposed image.
The disclosure also provides a DR fusion imaging method, which uses the DR fusion imaging system to image. In the following description, embodiments of the method will be specifically described using the DR fusion imaging system reference numerals described above as reference numerals, but it should be understood that these reference numerals are not used in a limiting sense, but merely to facilitate understanding of the technical solution. In other words, the following method is not limited to be performed using the aforementioned DR fusion imaging system and components thereof.
The method shown in fig. 2 can not only realize substance decomposition but also enhance DR images, and simultaneously can perform gesture recognition and identity verification on detected personnel, and can also automatically adjust a collimator of the DR imager 11, and comprises the following steps:
step 1: the detected personnel places the certificate on the certificate information acquisition unit 14, enters a designated detection area and adjusts the pose to wait for detection;
step 2: the depth camera 12 generates a human epidermis geometric model and transmits the model to the information processing device 20; the wide-angle camera 13 generates a visible light image of the detected object and sends it to the information processing apparatus 20; the certificate information acquisition unit 14 acquires electronic information including a head photograph of the person to be detected and transmits the electronic information to the information processing device 20;
step 3: the information processing device 20 processes the visible light image and the human epidermis geometric model, compares and checks the visible light image and the human epidermis geometric model with certificate information of the detected personnel, outputs identity information of the detected personnel through the working room end image display device 31, and carries out language prompt through the voice devices 41 and 42;
Step 4: the information processing device 20 processes the visible light image and the human epidermis geometric model, and identifies and judges the pose of the detected person, (1) if the pose of the detected person meets the detection requirement, the step 5 is entered; (2) If the pose of the inspected person does not meet the detection requirement, transmitting pose information to the image display devices 31 and 32 and the voice prompt devices 41 and 42 to prompt the inspected person to correct the pose, rescanning after the inspected person adjusts the pose, and repeating the step 4;
Step 5: the DR human body imager 11 receives the human body epidermis geometric model and adjusts the shape of a collimator in the DR human body imager 11 according to the human body epidermis geometric model, and then emits X-rays to irradiate a detected person and detects the X-rays penetrating the detected person to generate a DR image;
step 6: the information processing device 20 registers the geometrical model of the human body surface and the DR image to obtain a depth image matched with the DR image;
step 7: the information processing device 20 performs substance decomposition by using the depth image and the DR image to obtain a base material decomposition image, wherein one base material combination scheme is to select bone tissue and soft tissue as two base materials;
step 8: the information processing apparatus 20 generates a DR-enhanced image by enhancing the DR image using the base material decomposed image;
Step 9: the image display device 41 and/or the image display device 42 displays the identity information of the person to be detected and/or the human epidermis geometric model and/or the visible light image and/or the DR image and/or the depth image and/or the base material decomposed image and/or the DR enhanced image.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (10)
1. A DR fusion imaging system, wherein the DR fusion imaging system comprises an information acquisition apparatus and an information processing apparatus, the information acquisition apparatus comprises a DR imaging mechanism, a surface geometry acquisition mechanism and a visible light imaging mechanism, the DR imaging mechanism is configured to generate a DR image of a detected object, the surface geometry acquisition mechanism is configured to generate a three-dimensional surface geometry model of the detected object, and the visible light imaging mechanism is configured to generate a visible light image of the detected object; the information processing device is in data communication with the information acquisition device and is configured to acquire three-dimensional surface geometry data provided by the surface geometry acquisition mechanism and visible light images provided by the visible light imaging mechanism and DR images provided by the DR imaging mechanism, and is further configured to generate depth images matched with the DR images based on the three-dimensional surface geometry model and the DR images, and is further configured to generate base material decomposition images based on the depth images and the DR images.
2. The DR fusion imaging system of claim 1, wherein the surface geometry acquisition mechanism is configured as an active surface geometry acquisition mechanism to generate a three-dimensional surface geometry model.
3. The DR fusion imaging system of claim 1, wherein the DR imaging mechanism is configured to receive the three-dimensional surface geometry model and adjust a collimator shape accordingly and emit X-rays to irradiate the detected object and detect X-rays penetrating the detected object to generate a DR image.
4. The DR fusion imaging system of claim 1, wherein the DR fusion imaging system is an imaging system for including a living organism and an article, the object to be detected including a living organism and an article.
5. The DR fusion imaging system of claim 1, further comprising voice prompt means in data communication with the information processing means for prompting whether the pose of the subject is correct and prompting whether the identity thereof is correct when the subject is a human body.
6. The DR fusion imaging system of claim 1, wherein the information acquisition device further comprises a credential information acquisition mechanism in data communication with the information processing device, the credential information acquisition mechanism acquiring credential information of the person under test when the object under test is a human body, the information processing device further configured to verify an identity of the person under test based on the credential information of the person under test and the visible light image and/or three-dimensional surface geometry model.
7. The DR fusion imaging system according to claim 1, wherein the information processing apparatus is further configured to recognize a pose of the detected object based on the visible light image and the three-dimensional surface geometric model of the detected object, further perform authentication when the detected object is a human body, not start DR imaging if the authentication is not passed, and perform language prompt by the voice prompt apparatus, correct the pose of the detected object and then restart DR imaging if the pose does not meet detection requirements; when the detected object is an article or other organisms, if the pose does not meet the detection requirement, correcting the pose of the detected object and then restarting DR imaging.
8. The DR fusion imaging system of claim 1, wherein the information processing apparatus is further configured to generate a DR-enhanced image based on the base material decomposition image.
9. The DR fusion imaging system of claim 1, further comprising an image display device in data communication with the information processing device, the image display device capable of displaying a three-dimensional surface geometry model and/or a visible light image and/or a DR image and/or a depth image and/or a substrate decomposition image and/or a DR enhancement image.
10. An imaging method based on the DR fusion imaging system of any one of claims 1 to 9, comprising the steps of:
step 1: the detected object enters a specified detection area and is adjusted to wait for detection, and when the detected object is a human body, a certificate of the detected object is placed on a certificate information acquisition unit;
Step 2: the surface geometry acquisition mechanism generates a three-dimensional surface geometry model and sends the three-dimensional surface geometry model to the information processing device; the visible light imaging mechanism generates a visible light image of the detected object and sends the visible light image to the information processing device; when the detected object is a human body, the certificate information acquisition unit acquires certificate information of the detected person and sends the certificate information to the information processing device;
Step 3: when the detected object is a human body, carrying out identity verification on the detected person: the information processing device processes the visible light image and the three-dimensional surface geometric model, compares and checks the visible light image and the three-dimensional surface geometric model with certificate information of detected personnel, and sends an identity verification result to the image display device and the voice device;
step 4: the information processing device processes the visible light image and the three-dimensional surface geometric model, and recognizes and judges the pose of the detected object;
Step 5: the DR imaging mechanism receives the three-dimensional surface geometric model and adjusts the shape of a collimator in the DR imaging mechanism according to the three-dimensional surface geometric model, and then emits X-rays to irradiate the detected object and detects the X-rays penetrating through the detected object to generate a DR image;
step 6: the information processing device registers the three-dimensional surface geometric model and the DR image to obtain a depth image matched with the DR image;
Step 7: the information processing device performs substance decomposition by using the depth image and the DR image to obtain a base material decomposition image;
Step 8: the information processing device enhances the DR image by utilizing the base material decomposition image to generate a DR enhanced image;
Step 9: the image display device displays a three-dimensional surface geometric model and/or a visible light image and/or a DR image and/or a depth image and/or a base material decomposition image and/or a DR enhancement image of the detected object.
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| CN212415753U (en) * | 2020-05-14 | 2021-01-29 | 镇江慧影科技发展有限公司 | DR fusion imaging system |
| CN113662567A (en) * | 2020-05-14 | 2021-11-19 | 镇江慧影科技发展有限公司 | X-ray bone mineral density measuring system and method combining surface geometry acquisition |
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| CN212415753U (en) * | 2020-05-14 | 2021-01-29 | 镇江慧影科技发展有限公司 | DR fusion imaging system |
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