CN107874770B - Frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment - Google Patents
Frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment Download PDFInfo
- Publication number
- CN107874770B CN107874770B CN201711215488.XA CN201711215488A CN107874770B CN 107874770 B CN107874770 B CN 107874770B CN 201711215488 A CN201711215488 A CN 201711215488A CN 107874770 B CN107874770 B CN 107874770B
- Authority
- CN
- China
- Prior art keywords
- frame rate
- perspective
- speed
- shot object
- subject
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000002594 fluoroscopy Methods 0.000 title claims description 90
- 230000033001 locomotion Effects 0.000 claims abstract description 131
- 238000006073 displacement reaction Methods 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 10
- 230000002496 gastric effect Effects 0.000 claims description 5
- 230000008855 peristalsis Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 3
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- 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
- A61B6/44—Constructional features of apparatus 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention provides a frame rate adjusting method of perspective equipment, which further comprises the following steps: acquiring the relative movement speed of a shot object and perspective equipment in real time; and adjusting the frame rate of the perspective device in real time according to the relative motion speed of the shot object and the perspective device. According to the frame rate adjusting method and device for the perspective equipment and the X-ray perspective equipment, the frame rate of the perspective equipment is adjusted in real time through the relative movement speed of the shot object and the perspective equipment, the radiation dose of the shot object is reduced, the real-time performance and the reliability of image acquisition can be guaranteed, the perspective equipment is prevented from outputting a large number of repeated images, and the energy consumption of the perspective equipment is reduced.
Description
Technical Field
The invention relates to the technical field of medical imaging, in particular to a frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment.
Background
As a living body imaging mode, the medical imaging technology has the advantages of high spatial resolution, short imaging time, capability of obtaining three-dimensional structure information under the condition of a living body and the like. In the process of acquiring an image, in order to ensure the requirements of the real-time performance of the acquired image, etc., there is generally a certain requirement on the frame rate of the fluoroscopy device, for example, the frame rate of the fluoroscopy device is required to be always maintained at 30 frames/second. However, the current frame rate for image acquisition may cause the subject to receive excessive radiation, causing some damage to the subject.
Disclosure of Invention
In view of the problem that the conventional frame rate control method of the fluoroscopy device may cause the subject to receive too much radiation, the present invention aims to provide a frame rate adjustment method and apparatus of the fluoroscopy device and an X-ray fluoroscopy device, which can adaptively adjust the frame rate of the fluoroscopy device, reduce the radiation to the subject, and reduce the energy consumption of the fluoroscopy device to a certain extent.
In order to achieve the purpose, the invention adopts the following technical scheme:
a frame rate adjustment method of a perspective device comprises the following steps:
acquiring the relative movement speed of a shot object and perspective equipment in real time;
and adjusting the frame rate of the perspective device in real time according to the relative motion speed of the shot object and the perspective device.
In one embodiment, the step of adjusting the frame rate of the fluoroscopy device in real time according to the relative movement speed of the subject and the fluoroscopy device comprises:
when the relative movement speed of the shot object and the perspective device is smaller than or equal to a first speed, adjusting the current frame rate of the perspective device to be a first frame rate.
In one embodiment, the step of adjusting the frame rate of the fluoroscopy device in real time according to the relative movement speed of the subject and the fluoroscopy device further includes:
when the relative movement speed of the shot object and the perspective device is greater than a second speed, adjusting the current frame rate of the perspective device to be a second frame rate;
wherein the second speed is greater than the first speed, and the second frame rate is greater than the first frame rate.
In one embodiment, the step of adjusting the frame rate of the fluoroscopy device in real time according to the relative movement speed of the subject and the fluoroscopy device further includes:
when the relative motion speed of the shot object and the perspective device is smaller than or equal to the second speed, and the relative motion speed of the shot object and the perspective device is larger than the first speed, adjusting the current frame rate of the perspective device to be a third frame rate;
and the third frame rate is greater than the preset first frame rate and less than the second frame rate.
In one embodiment, before acquiring the relative movement speed of the subject and the fluoroscopy device in real time, the method further comprises the following steps:
judging whether the motion of the shot object is controllable;
if the motion of the shot object is controllable, acquiring the relative motion speed of the shot object and the perspective equipment in real time;
and if the motion of the shot object is not controllable, controlling the perspective equipment to acquire images at a fixed frame rate.
In one embodiment, the acquiring the relative movement speed of the subject and the perspective device in real time includes:
acquiring a current frame medical image and a previous frame medical image;
and obtaining the relative movement speed of the shot object and the perspective equipment according to the current frame medical image and the previous frame medical image.
In one embodiment, the acquiring the relative movement speed of the subject and the perspective device in real time includes:
acquiring the displacement of the shot object and the displacement of the perspective device;
and obtaining the relative movement speed of the shot object and the perspective device according to the displacement of the shot object and the displacement of the perspective device.
The invention also provides a frame rate adjusting device of the perspective device, which comprises:
the speed detection unit is used for acquiring the relative movement speed of the shot object and the perspective equipment in real time;
and the adjusting unit is used for adjusting the frame rate of the perspective device in real time according to the relative movement speed of the shot object and the perspective device.
The invention also provides a frame rate adjusting device of the perspective device, which comprises:
a first displacement sensor for detecting a displacement of the fluoroscopy device;
a second displacement sensor for detecting a displacement of the subject;
a speed detector for determining a relative movement speed of the subject and the fluoroscopy apparatus based on information detected by the first and second displacement sensors; and
and the adjuster is used for adjusting the frame rate of the perspective device in real time according to the relative motion speed of the shot object and the perspective device.
In addition, the invention also provides an X-ray fluoroscopy device which comprises the frame rate adjusting device of the fluoroscopy device.
The invention has the beneficial effects that:
according to the frame rate adjusting method and device for the perspective equipment and the X-ray perspective equipment, the frame rate of the perspective equipment is adjusted in real time by acquiring the relative movement speed of the shot object and the perspective equipment, so that the imaging frequency of medical images can be controlled, the perspective equipment is prevented from outputting a large number of repeated images, the radiation to the shot object is reduced, and the real-time performance and the reliability of image acquisition are ensured; in addition, the energy consumption of the perspective device is reduced to a certain extent.
Drawings
FIG. 1 is a schematic diagram of an X-ray fluoroscopy apparatus according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a frame rate adjustment method of a see-through device according to an embodiment of the present invention;
FIG. 3 is a flowchart of a frame rate adjustment method of a see-through device according to another embodiment of the present invention;
FIG. 4 is a block diagram of a frame rate adjustment apparatus of a see-through device according to an embodiment of the present invention;
FIG. 5 is a block diagram of a frame rate adjustment apparatus of a see-through device according to another embodiment of the present invention;
fig. 6 is a block diagram of a frame rate adjusting device of a see-through apparatus according to another embodiment of the invention.
Detailed Description
In order to make the technical solution of the present invention clearer, the frame rate adjusting method and apparatus of the fluoroscopy apparatus and the X-ray fluoroscopy apparatus of the present invention are described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1, the frame rate adjustment method and apparatus for fluoroscopy equipment according to an embodiment of the present invention can be applied to X-ray fluoroscopy equipment to achieve the acquisition of X-ray images. In particular, as shown in fig. 1, the fluoroscopy device 10 may comprise a C-arm 110, a bulb 120 for generating X-rays and a flat panel detector 130 for medical image (e.g. X-ray image) acquisition. The bulb 120 is disposed at one end of the C-arm 110, the flat panel detector 130 is disposed at the other end of the C-arm 110, and an irradiation area of the X-ray is larger than an area of the flat panel detector 130. Of course, in other embodiments, the X-ray fluoroscopy apparatus may also employ a U-shaped arm, a G-shaped arm, an O-shaped arm, etc., which are not limited herein.
Alternatively, when the bulb 120 of the fluoroscopy device emits X-rays outwards, the flat panel detector 130 may form an X-ray image, so that the motion information such as the relative motion speed of the subject and the fluoroscopy device may be calculated from the X-ray image obtained by the flat panel detector 130. Therefore, the real-time adjustment of the frame rate of the perspective device can be realized according to the relative motion speed, namely the emission frequency of the X-ray of the bulb tube is adjusted in real time according to the relative motion speed.
Optionally, the frame rate adjustment method of the fluoroscopy device in an embodiment of the present invention is used to implement real-time adjustment of the frame rate of the fluoroscopy device, so as to reduce radiation of the fluoroscopy device to the subject and reduce energy consumption of the fluoroscopy device on the premise of ensuring real-time performance of medical image acquisition. Specifically, as shown in fig. 2, the method may include the following steps:
s100, acquiring the relative movement speed of the shot object and the perspective equipment in real time. Specifically, the subject may be a body part of a human body, for example, the subject may be a leg, a head, a neck, or the like, and is not limited herein. It should be clear that the relative movement speed of the subject and the see-through apparatus herein refers to the movement speed of the subject with respect to the see-through apparatus, or the movement speed of the see-through apparatus with respect to the subject.
And S200, adjusting the frame rate of the perspective device in real time according to the relative motion speed of the shot object and the perspective device. Specifically, the frame rate of the fluoroscopy apparatus and the relative movement speed of the subject and the fluoroscopy apparatus may be in a proportional relationship. Namely, when the relative motion speed of the shot object and the perspective device is increased, the frame rate of the perspective device can be improved, so that the real-time property of medical image acquisition is ensured, and the detection result is prevented from being wrong due to missing information. When the relative movement speed of the shot object and the perspective device is reduced, the frame rate of the perspective device can be reduced, so that the radiation to the shot object can be reduced in the whole perspective process, unnecessary damage to the shot object is avoided, and the energy consumption of the perspective device can be reduced.
Further, the adjustment of the frame rate of the see-through device is continuous. For example, the continuous adjustment of the frame rate of the fluoroscopy device may be implemented according to a preset variation curve, and the preset variation curve may embody a relationship between the relative movement speed of the subject and the fluoroscopy device and the frame rate of the fluoroscopy device. Of course, in other embodiments, the preset variation curve may also be discretized into a digital staircase form, thereby implementing discrete adjustment of the frame rate of the see-through device. For example, when the relative movement speed between the transmission device and the subject is a certain preset speed value, the frame rate of the see-through device may be adjusted to a fixed frame rate corresponding to the preset speed value.
In one embodiment, the relative movement speed between the subject and the fluoroscopy device can be obtained after the medical image analysis processing output by the flat panel detector 130. Specifically, the step S100 may include:
acquiring a current frame medical image and a previous frame medical image output by the flat panel detector 130; that is, the current frame medical image currently output by the flat panel detector 130 and the previous frame medical image output by the flat panel detector 130 before the current frame medical image can be obtained.
And obtaining the relative motion speed between the shot object and the perspective equipment according to the current frame medical image and the previous frame medical image. For example, the relative movement distance between the perspective device and the subject can be calculated by combining the number of pixels of the subject moving in two frames before and after the subject in the image with the spatial distance corresponding to each pixel in the imaging system. And then the current frame rate information is combined, so that the relative movement speed between the shot object and the perspective equipment can be obtained.
Of course, in other embodiments, the relative movement speed of the subject and the fluoroscopy device may also be calculated from the relative displacement of the subject and the fluoroscopy device. Specifically, the step S100 may further include the following steps:
acquiring the displacement of a shot object and the displacement of a perspective device; for example, if the subject and the bed are relatively stationary, the movement position of the subject can be obtained by installing a displacement detecting device, such as a displacement sensor, on the bed and detecting the position of the bed. The displacement of the fluoroscopy device can also be detected by a displacement detection device arranged on the fluoroscopy device, such as a displacement sensor and the like.
The relative movement speed of the subject and the fluoroscopy apparatus is obtained from the displacement of the subject and the displacement of the fluoroscopy apparatus. Specifically, the relative displacement of the subject and the projection apparatus may be obtained from the displacement of the subject and the displacement of the fluoroscopy apparatus, and thereafter, the relative movement speed of the subject and the fluoroscopy apparatus may be calculated from the relative displacement and the movement time.
In one embodiment, as shown in fig. 3, the step S200 further includes the following steps:
s210, judging whether the relative movement speed of the shot object and the perspective equipment is less than or equal to a first speed; specifically, the first speed may be zero, at which time the subject and the fluoroscopy apparatus are relatively stationary.
When the relative movement speed of the subject and the perspective device is less than or equal to the first speed, step S220 is executed to adjust the current frame rate of the perspective device to the first frame rate. Specifically, the first frame rate may be a smaller frame rate, such as: may be 2 frames/second so that the fluoroscopy device acquires images at a lower frequency. I.e. when the subject and the fluoroscopy device are relatively still or the relative motion speed between the subject and the fluoroscopy device is small (less than the first speed), the fluoroscopy device can be controlled to acquire images at a lower frame rate, i.e. the bulb 120 of the fluoroscopy device is controlled to increase the time interval between two pulses, thereby reducing the radiation to the patient and simultaneously reducing the energy consumption of the fluoroscopy device. Further, the first frame rate may belong to an interval, for example, the first frame rate may be any value of [2, 10] (unit: frame/second).
Further, the step S200 may further include the following steps:
and S230, judging whether the relative movement speed of the shot object and the perspective device is greater than a second speed. Wherein the second speed is greater than the first speed.
When the relative movement speed of the subject and the perspective device is greater than the second speed, step S240 is executed to adjust the current frame rate of the perspective device to the second frame rate, so as to ensure the real-time performance of image acquisition. Specifically, the second frame rate is greater than the first frame rate, and the second frame rate may be a frame rate when the see-through device normally shoots, for example, the second frame rate may be 30 frames/second. Further, the second frame rate may also belong to an interval, for example, the second frame rate may be any value of [30, 45] (unit: frame/second).
Further, the step S200 may further include the following steps:
when the relative movement speed of the subject and the perspective device is less than or equal to the second speed and the relative movement speed of the subject and the perspective device is greater than the first speed, step S250 is executed to adjust the current frame rate of the perspective device to the third frame rate. Specifically, the third frame rate is greater than the first frame rate and the third frame rate is less than the second frame rate. The third frame rate may be variable, for example, the third frame rate is proportional to the relative movement speed of the subject and the perspective device, that is, when the relative movement speed of the subject and the perspective device increases, the frame rate of the perspective device is increased; when the relative movement speed of the shot object and the perspective device is reduced, the frame rate of the perspective device is reduced, the radiation received by the shot object in the whole perspective process is further reduced, and meanwhile, the energy consumption of the perspective device is also reduced. Of course, the third frame rate may also be a fixed value.
In one embodiment, before the step S100, the method further includes the steps of:
s300, judging whether the motion of the shot object is controllable or not; specifically, the motion of the subject may be divided into controllable motion and uncontrollable motion. Wherein, the controllable movement refers to the active movement of limbs, head swing and the like of the patient, and the uncontrollable movement refers to the physiological movement of heartbeat, gastrointestinal peristalsis and the like. In a specific image acquisition process, whether the motion of the shot object is controllable or not can be determined according to a specific shot part of a patient. For example, when the subject is a heart or an abdomen, it is considered that the motion of the subject is uncontrollable; when the subject is a leg or a spine, it can be considered that the motion of the subject is controllable.
If the motion of the subject is controllable, step S100 may be executed to obtain the relative motion speed of the subject and the perspective device, and then step S200 may be executed to adjust the frame rate of the perspective device in real time according to the relative motion speed of the subject and the perspective device, where the specific adjustment manner may be performed according to the adjustment manner described above, and details are not repeated here.
If the motion of the object is not controllable, step S400 is executed to control the fluoroscopy device to perform image acquisition at a fixed frame rate. For example, the fixed frame rate may be equal to the second frame rate described above, e.g., the fixed frame rate may be 30 frames/second. At this time, no matter whether relative motion exists between the shot object and the perspective device, the perspective device is controlled to carry out image acquisition according to the fixed frame rate, so that the real-time performance of image acquisition is ensured.
Further, for each shot part, a fixed frame rate corresponding to the shot part can be set for different shot parts, and when the motion of the shot object is not controllable, the perspective device can be controlled to perform image acquisition at the fixed frame rate corresponding to the shot object. For example, when the object is a heart, the fluoroscopy device may be controlled to perform image acquisition at a first fixed frame rate, which may be determined according to a beating law of the heart. When the shot part is the abdomen, the perspective device can be controlled to acquire images according to a second fixed frame rate, and the second fixed frame rate can be determined according to the gastrointestinal peristalsis characteristics of the abdomen.
Those skilled in the art will appreciate that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program instructing associated hardware. In this regard, an embodiment of the present invention provides a computer-readable storage medium, where a computer program may be stored, and when the computer program is executed by one or more processors, the computer program may specifically perform the method in any one of the above embodiments. The computer readable storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like. In particular, the computer program in the storage medium, when executed by one or more processors, performs in particular the steps of:
the relative movement speed of the subject and the fluoroscopy apparatus is acquired in real time. Specifically, the subject may be a body part of a human body, for example, the subject may be a leg, a head, a neck, or the like, and is not limited herein. It should be clear that the relative movement speed of the subject and the see-through apparatus herein refers to the movement speed of the subject with respect to the see-through apparatus, or the movement speed of the see-through apparatus with respect to the subject.
And adjusting the frame rate of the perspective device in real time according to the relative motion speed of the shot object and the perspective device. Specifically, the frame rate of the fluoroscopy apparatus and the relative movement speed of the subject and the fluoroscopy apparatus may be in a proportional relationship. Namely, when the relative motion speed of the shot object and the perspective device is increased, the frame rate of the perspective device can be improved, so that the real-time property of medical image acquisition is ensured, and the detection result is prevented from being wrong due to missing information. When the relative motion speed of the shot object and the perspective device is reduced, the frame rate of the perspective device can be reduced, so that the energy consumption of the perspective device is reduced while the radiation of the shot object is reduced in the whole perspective process.
Fig. 4 is a block diagram of a frame rate adjusting device of a fluoroscopy apparatus according to an embodiment of the present invention, and the frame rate adjusting device of the fluoroscopy apparatus of the present embodiment can adjust the emission frequency of the tube X-ray in real time according to the acquired relative movement speed between the subject and the fluoroscopy apparatus. Specifically, the frame rate adjusting apparatus 400 of the see-through device may include a speed detecting unit 410 and an adjusting unit 420. The speed detection unit 410 is configured to obtain a relative movement speed between the subject and the fluoroscopy device in real time, and the adjustment unit 420 is configured to adjust the frame rate of the fluoroscopy device in real time according to the relative movement speed between the subject and the fluoroscopy device. Further, the speed detection Unit 410 and the adjustment Unit 420 may be disposed in the same processor, and the processor may be a processor such as a CPU (Central Processing Unit) or a DSP (Digital Signal Processing).
It should be clear that, the working principle of the frame rate adjusting apparatus of this embodiment can refer to the frame rate adjusting method described above, and is not described herein again.
Of course, in other embodiments, the speed detection unit 410 may include a displacement sensor or the like, so that the relative movement speed between the fluoroscopy apparatus and the subject may be obtained by calculating the relative displacement between the fluoroscopy apparatus and the subject. The adjusting Unit 420 may be a processor such as a CPU (Central Processing Unit) or a DSP (Digital Signal Processing).
As shown in fig. 5, another embodiment of the present invention further provides a frame rate adjusting apparatus 500 of a see-through device, which includes a first displacement sensor 510, a second displacement sensor 520, a speed detector 530, and an adjuster 540. Wherein the first displacement sensor 510 is used to detect the displacement of the see-through device, and the second displacement sensor 520 is used to detect the displacement of the subject. The speed detector 530 is used for obtaining the relative motion speed of the subject and the perspective device according to the displacement of the perspective device obtained by the detection of the first displacement sensor 510 and the displacement of the subject obtained by the detection of the second displacement sensor 520. Specifically, the speed detector 530 may obtain the relative movement speed of the subject and the fluoroscopy apparatus according to the relative displacement and the movement time of the subject and the fluoroscopy apparatus. The adjuster 540 is used to adjust the frame rate of the fluoroscopy device in real time according to the relative movement speed of the subject and the fluoroscopy device. The regulator 540 may be a processor such as a CPU (Central Processing Unit) or a DSP (Digital Signal Processing).
The working principle of the frame rate adjusting device of the perspective device in this embodiment may refer to the frame rate adjusting method described above, and is not described herein again.
Further, as shown in fig. 6, the frame rate adjusting apparatus 400 or 500 may further include a memory connected to the processor, a display, a network interface, an input device, and the like. The memory stores an operating system and a computer program, and the computer program is used for implementing the frame rate adjustment method of the perspective device. The network interface is used for network communication with other terminals or computer devices, such as receiving medical images output by the flat panel detector 130, or sending control signals to the C-arm 110, the bulb 120, and the like. The frame rate adjusting device may further include a user interaction device, which may include an input device and an output device. Alternatively, the output device may be a display of the terminal for displaying the data information. The input device is used for inputting data, wherein the input device may be a touch layer covered on a display screen, a key or a touch pad arranged on a housing of the terminal, or an external keyboard, a touch pad or a mouse. It will be understood by those skilled in the art that the structure of the frame rate adjusting apparatus is only a block diagram of a part of the structure related to the present application, and does not limit the terminal to which the present application is applied. Alternatively, the terminal may contain more or fewer components than shown in fig. 4 or 5, or some components may be combined, or have a different arrangement of components.
In addition, an embodiment of the present invention further provides an X-ray fluoroscopy apparatus, which includes a gantry and the frame rate adjustment device of the fluoroscopy apparatus. The frame may be a C-arm, an O-arm, a U-arm, a G-arm, etc., and the frame rate adjusting device of the fluoroscopy apparatus may be the frame rate adjusting device 400 or the frame rate adjusting device 500. Other structures of the X-ray fluoroscopy device, such as the flat panel detector, the bulb tube, and the like, can be referred to the above description, and are not described herein again.
According to the frame rate adjusting method and device for the perspective equipment and the X-ray perspective equipment, the frame rate of the perspective equipment is adjusted in real time by acquiring the relative movement speed of the shot object and the perspective equipment, so that the imaging frequency of medical images can be controlled, the perspective equipment is prevented from outputting a large number of repeated images, the radiation to the shot object is reduced, and the real-time performance and the reliability of image acquisition are ensured; in addition, the energy consumption of the perspective device is reduced to a certain extent.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A frame rate adjustment method of a perspective device is characterized by comprising the following steps:
judging whether the motion of the shot object is controllable;
if the motion of the shot object is controllable, acquiring the relative motion speed of the shot object and the perspective equipment in real time;
adjusting the frame rate of the perspective equipment in real time according to the relative motion speed of the shot object and the perspective equipment;
if the motion of the shot object is not controllable, controlling the perspective equipment to acquire images at a fixed frame rate;
wherein the controllable movement comprises at least one of active limb movement and head swing of the patient; the uncontrolled movement includes at least one physiological movement selected from the group consisting of heartbeat and gastrointestinal peristalsis.
2. The method of claim 1, wherein the step of adjusting the frame rate of the fluoroscopy device in real time according to the relative motion speed of the subject and the fluoroscopy device comprises:
when the relative movement speed of the shot object and the perspective device is smaller than or equal to a first speed, adjusting the current frame rate of the perspective device to be a first frame rate.
3. The method of claim 2, wherein the step of adjusting the frame rate of the fluoroscopy device in real time according to the relative motion speed of the subject and the fluoroscopy device further comprises:
when the relative movement speed of the shot object and the perspective device is greater than a second speed, adjusting the current frame rate of the perspective device to be a second frame rate;
wherein the second speed is greater than the first speed, and the second frame rate is greater than the first frame rate.
4. The method of claim 3, wherein the step of adjusting the frame rate of the fluoroscopy device in real time according to the relative motion speed of the subject and the fluoroscopy device further comprises:
when the relative motion speed of the shot object and the perspective device is smaller than or equal to the second speed, and the relative motion speed of the shot object and the perspective device is larger than the first speed, adjusting the current frame rate of the perspective device to be a third frame rate;
wherein the third frame rate is greater than the first frame rate and less than the second frame rate.
5. The method according to any one of claims 1-4, wherein the obtaining the relative motion speed of the subject and the fluoroscopy equipment in real time comprises:
acquiring a current frame medical image and a previous frame medical image;
and obtaining the relative movement speed of the shot object and the perspective equipment according to the current frame medical image and the previous frame medical image.
6. The method according to any one of claims 1-4, wherein the obtaining the relative motion speed of the subject and the fluoroscopy equipment in real time comprises:
acquiring the displacement of the shot object and the displacement of the perspective device;
and obtaining the relative movement speed of the shot object and the perspective device according to the displacement of the shot object and the displacement of the perspective device.
7. A frame rate adjusting apparatus of a see-through device, comprising:
a processor for determining whether the motion of the subject is controllable;
the speed detection unit is used for acquiring the relative movement speed of the shot object and the perspective equipment in real time if the motion of the shot object is controllable;
the adjusting unit is used for adjusting the frame rate of the perspective device in real time according to the relative movement speed of the shot object and the perspective device;
the processor is further configured to control the perspective device to perform image acquisition at a fixed frame rate if the motion of the subject is not controllable;
wherein the controllable movement comprises at least one of active limb movement and head swing of the patient; the uncontrolled movement includes at least one physiological movement selected from the group consisting of heartbeat and gastrointestinal peristalsis.
8. A frame rate adjusting apparatus of a see-through device, comprising:
a processor for determining whether the motion of the subject is controllable;
a first displacement sensor for detecting a displacement of the fluoroscopy device;
a second displacement sensor for detecting a displacement of the subject;
a speed detector for determining a relative movement speed of the subject and the see-through apparatus based on information detected by the first and second displacement sensors if the movement of the subject is controllable; and
the adjuster is used for adjusting the frame rate of the perspective device in real time according to the relative motion speed of the shot object and the perspective device;
the processor is further configured to control the perspective device to perform image acquisition at a fixed frame rate if the motion of the subject is not controllable;
wherein the controllable movement comprises at least one of active limb movement and head swing of the patient; the uncontrolled movement includes at least one physiological movement selected from the group consisting of heartbeat and gastrointestinal peristalsis.
9. An X-ray fluoroscopy apparatus characterized by comprising frame rate adjustment means of the fluoroscopy apparatus of claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215488.XA CN107874770B (en) | 2017-11-28 | 2017-11-28 | Frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215488.XA CN107874770B (en) | 2017-11-28 | 2017-11-28 | Frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107874770A CN107874770A (en) | 2018-04-06 |
| CN107874770B true CN107874770B (en) | 2021-06-22 |
Family
ID=61775717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215488.XA Active CN107874770B (en) | 2017-11-28 | 2017-11-28 | Frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107874770B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611845A (en) * | 2011-01-20 | 2012-07-25 | 卡西欧计算机株式会社 | Imaging apparatus and imaging method for taking moving image |
| CN105246411A (en) * | 2013-04-03 | 2016-01-13 | 皇家飞利浦有限公司 | Interventional X-ray system |
| CN105741239A (en) * | 2014-12-11 | 2016-07-06 | 合肥美亚光电技术股份有限公司 | Method and apparatus for generating tooth panorama image, and panorama machine for shooting teeth |
| JP2016195686A (en) * | 2015-04-03 | 2016-11-24 | 株式会社島津製作所 | Radiographic device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004073490A (en) * | 2002-08-19 | 2004-03-11 | Canon Inc | Roentgenography apparatus, roentgenography method, and computer readable storage medium |
| US6995748B2 (en) * | 2003-01-07 | 2006-02-07 | Agilent Technologies, Inc. | Apparatus for controlling a screen pointer with a frame rate based on velocity |
| CN1328696C (en) * | 2004-12-31 | 2007-07-25 | 北京中星微电子有限公司 | Motion image detecting method and circuit |
| JP4979271B2 (en) * | 2006-05-29 | 2012-07-18 | オリンパス株式会社 | ENDOSCOPE SYSTEM AND ENDOSCOPE OPERATING METHOD |
| US9848835B2 (en) * | 2010-08-16 | 2017-12-26 | Varian Medical Systems International Ag | Variable-speed computed tomography scanning |
| CN102096924B (en) * | 2010-11-18 | 2012-07-25 | 无锡中星微电子有限公司 | Method for adjusting detection frame rate |
| CN102048519B (en) * | 2010-12-23 | 2013-01-23 | 南方医科大学南方医院 | Capsule endoscopy with automatically adjusted shooting frequency and method thereof |
| JP5296930B2 (en) * | 2011-06-21 | 2013-09-25 | オリンパスメディカルシステムズ株式会社 | Medical equipment |
| CN103905708B (en) * | 2012-12-24 | 2017-06-27 | 联想(北京)有限公司 | A kind of frame rate method of adjustment and electronic equipment |
| CN104580969A (en) * | 2013-10-23 | 2015-04-29 | 中兴通讯股份有限公司 | Video frame rate adjusting method and device |
| CN104270561A (en) * | 2014-08-01 | 2015-01-07 | Tcl通讯（宁波）有限公司 | Method for automatically regulating Camera frame rate of mobile terminal and mobile terminal |
-
2017
- 2017-11-28 CN CN201711215488.XA patent/CN107874770B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611845A (en) * | 2011-01-20 | 2012-07-25 | 卡西欧计算机株式会社 | Imaging apparatus and imaging method for taking moving image |
| CN105246411A (en) * | 2013-04-03 | 2016-01-13 | 皇家飞利浦有限公司 | Interventional X-ray system |
| CN105741239A (en) * | 2014-12-11 | 2016-07-06 | 合肥美亚光电技术股份有限公司 | Method and apparatus for generating tooth panorama image, and panorama machine for shooting teeth |
| JP2016195686A (en) * | 2015-04-03 | 2016-11-24 | 株式会社島津製作所 | Radiographic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107874770A (en) | 2018-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2976000B1 (en) | Neurophysiological monitoring for prospective motion gating in radiological imaging | |
| US7769430B2 (en) | Patient visual instruction techniques for synchronizing breathing with a medical procedure | |
| US9984306B2 (en) | Method and apparatus for generating a medical image, and method of generating personalized parameter value | |
| CN102670225A (en) | Automated imaging contrast agent determination system | |
| JP2008253758A (en) | Image acquisition and processing chain for dual-energy radiography using a portable flat panel detector | |
| CN107072614B (en) | X-ray apparatus and X-ray imaging method | |
| US8363901B2 (en) | Radiographic tomography apparatus | |
| CN107945850B (en) | Method and device for processing medical images | |
| US10631810B2 (en) | Image processing device, radiation imaging system, image processing method, and image processing program | |
| US9655584B2 (en) | Computed tomography apparatus and method of controlling X-ray by using the same | |
| JP2019180512A (en) | Radiation image display device, radiographic system, and diagnostic method | |
| JP2019130083A (en) | Image processing apparatus, radiation imaging apparatus, image processing method, and program | |
| US11179122B2 (en) | Bolus imaging | |
| US11151726B2 (en) | Medical image processing apparatus, X-ray diagnostic apparatus, and medical image processing method | |
| US11151715B2 (en) | Dynamic analysis system | |
| CN107874770B (en) | Frame rate adjusting method and device of fluoroscopy equipment and X-ray fluoroscopy equipment | |
| CN107303184B (en) | CT scanning X-ray source tube current modulation method and computed tomography device | |
| CN115067980A (en) | Method and device for determining scanning time phase, computer equipment and storage medium | |
| US20170294033A1 (en) | Dose efficient x-ray detector and method | |
| EP3706631B1 (en) | Device and method for determining image parameters for generating an x-ray pulse | |
| WO2015072072A1 (en) | Image processing device and method for operation thereof, imaging device and method for operation thereof, imaging system, and computer program | |
| KR101321885B1 (en) | Ultrasonic diagnostic system and method using physiological signal | |
| JP7246281B2 (en) | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF, RADIATION IMAGING APPARATUS, AND PROGRAM | |
| US20180114321A1 (en) | Dynamic analysis system | |
| US20210383558A1 (en) | Recording medium, image processing apparatus, and image processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Applicant after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Applicant before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |