CN113311009A

CN113311009A - Scanning information processing method, probe, scanning device, medium, and electronic device

Info

Publication number: CN113311009A
Application number: CN202110502104.2A
Authority: CN
Inventors: 刘玉东; 李天华; 王莹莹
Original assignee: Neusoft Medical Systems Co Ltd
Current assignee: Neusoft Medical Systems Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-27

Abstract

The present disclosure relates to a scanning information processing method, a detector, a scanning device, a medium, and an electronic device, and relates to the technical field of electronic information processing, wherein the method is applied to a flat panel detector in the scanning device, and the scanning device further includes: frame, ray emitter, beam limiting ware and image processing system include: the method comprises the steps of obtaining first position information of a ray emitter and the opening area of a beam limiter, determining an irradiation area of rays on a flat panel detector according to the first position information and the opening area, scanning the irradiation area under the condition that the ray emitter emits the rays, reading scanning information in the irradiation area, sending the scanning information in the irradiation area to an image processing system, and enabling the image processing system to generate a scanning image according to the scanning information in the irradiation area, wherein the scanning information comprises the intensity of the rays received in the irradiation area. The data transmission method and the data transmission device can reduce the data transmission amount and improve the data transmission efficiency on the premise of not losing the image quality.

Description

Scanning information processing method, probe, scanning device, medium, and electronic device

Technical Field

The present disclosure relates to the field of electronic information processing technologies, and in particular, to a scanning information processing method, a detector, a scanning device, a medium, and an electronic device.

Background

With the continuous development of image processing technology, X-ray scanning devices are widely used in the medical field, for example: CT (english: Computed Tomography, chinese: Computed Tomography) equipment, CR (english: Computed Radiography, chinese: Computed Radiography) equipment, DR (english: Digital Radiography, chinese: Digital Radiography) equipment, and the like. The X-ray scanning equipment utilizes precisely collimated X-rays to irradiate towards an object to be detected, and a flat panel detector with extremely high sensitivity receives the intensity of the rays penetrating through the object to be detected so as to obtain a scanned image of the object to be detected. The X-ray scanning equipment has the characteristics of short scanning time, clear image and the like.

However, the size of the flat panel detector is fixed, that is, the intensity of the rays on the whole flat panel detector needs to be acquired and transmitted to the image processing system, and the size of the part of the object to be measured, which needs to be scanned, is variable and usually does not occupy the whole flat panel detector, so that a lot of invalid data is included in the acquisition and transmission process, and the efficiency of data transmission is reduced.

Disclosure of Invention

An object of the present disclosure is to provide a scan information processing method, a probe, a scanning device, a medium, and an electronic device, which are used to solve the related problems in the prior art.

In order to achieve the above object, according to a first aspect of the embodiments of the present disclosure, there is provided a scanning information processing method applied to a flat panel detector in a scanning device, where the scanning device further includes: the device comprises a rack, a ray emitter, a beam limiter and an image processing system, wherein the ray emitter is arranged on the rack and used for emitting rays, the rays are emitted to an object to be detected through the beam limiter, and the flat panel detector is used for receiving the rays penetrating through the object to be detected; the method comprises the following steps:

acquiring first position information of the ray emitter and the opening area of the beam limiter;

determining an irradiation area of rays on the flat panel detector according to the first position information and the opening area;

under the condition that the ray emitter emits rays, scanning the irradiation area, and reading scanning information in the irradiation area, wherein the scanning information comprises the intensity of the rays received in the irradiation area;

and sending the scanning information in the irradiation area to the image processing system so that the image processing system generates a scanning image according to the scanning information in the irradiation area.

Optionally, the gantry comprises a movable axis for controlling the relative position of the radiation emitter and the flat panel detector and a rotatable axis for controlling the relative angle of the radiation emitter and the flat panel detector; the first location information includes: a position of the movable shaft and an angle of the rotatable shaft;

the determining an irradiation area of rays on the flat panel detector according to the first position information and the opening area comprises:

according to the position of the movable shaft, determining a central coordinate of the ray emitter corresponding to the flat panel detector and a relative distance between the ray emitter and the flat panel detector;

determining a relative angle of the ray emitter with respect to the flat panel detector from the angle of the rotatable shaft;

determining the area of the irradiation region according to the opening area, the relative distance and the relative angle;

and determining the coordinate range of the irradiation region on the flat panel detector according to the central coordinate and the area of the irradiation region.

Optionally, before the determining an irradiation region of the ray on the flat panel detector according to the first position information and the opening area, the method further includes:

acquiring detection information of the object to be detected, wherein the detection information comprises a detection body position;

determining second position information of the flat panel detector according to the detection information;

determining the irradiation region according to the first position information, the opening area and the second position information.

Optionally, the detecting information further includes: detecting a region; after the determining the irradiation region from the first position information, the opening area, and the second position information, the method further includes:

judging whether the irradiation area is matched with the detection area;

if the irradiation area is not matched with the detection area, sending out prompt information;

the scanning the irradiation region and reading the scanning information in the irradiation region under the condition that the ray emitter emits the ray comprises the following steps:

and under the condition that the irradiation area is matched with the detection area and the ray emitter emits rays, scanning the irradiation area and reading scanning information in the irradiation area.

Optionally, the flat panel detector comprises a plurality of detection units, and the plurality of detection units are arranged in an array; before the scanning the irradiation region and reading the scanning information in the irradiation region, the method further comprises:

determining at least one target row covered by the irradiation area and at least one target column;

for each target row, the scanning the irradiation region and reading the scanning information in the irradiation region includes:

scanning the target row and reading the intensity of the ray received by each detection unit in the target row;

the sending the scanning information in the irradiation region to the image processing system comprises:

and sending the intensity of the ray received by the detection unit belonging to the target column in the target row to the image processing system.

determining a starting row, an ending row, a starting column and an ending column of the boundary of the irradiation area;

for each line from the starting line to the ending line, the scanning the irradiation area and reading scanning information in the irradiation area includes:

scanning the row and reading the intensity of the ray received by each detection unit in the row;

and sending the intensity of the ray received by the detection unit from the starting column to the ending column in the row to the image processing system.

According to a second aspect of embodiments of the present disclosure, there is provided a flat panel detector, including: an irradiation area processing unit, a scanning unit, a reading unit, and an image transmission unit;

the irradiation area processing unit is used for acquiring first position information of the ray emitter and the opening area of the beam limiter; determining an irradiation area of rays on the flat panel detector according to the first position information and the opening area;

the scanning unit is used for scanning the irradiation area under the condition that the ray emitter emits rays; the reading unit is used for reading scanning information in the irradiation area, wherein the scanning information comprises the intensity of the rays received in the irradiation area;

the image transmission unit is used for sending the scanning information in the irradiation area to the image processing system so that the image processing system can generate a scanning image according to the scanning information in the irradiation area.

the irradiation area processing unit is configured to:

Optionally, the irradiation region processing unit is further configured to:

before determining an irradiation area of a ray on the flat panel detector according to the first position information and the opening area, acquiring detection information of the object to be detected, wherein the detection information comprises a detection body position;

Optionally, the detecting information further includes: detecting a region; the flat panel detector further includes: a detection unit;

the detection unit is used for:

judging whether the irradiation area is matched with the detection area;

the scanning unit is used for scanning the irradiation area under the condition that the irradiation area is matched with the detection area and the ray emitter emits rays; the reading unit is used for reading the scanning information in the irradiation area.

Optionally, the flat panel detector comprises a plurality of detection units, and the plurality of detection units are arranged in an array;

the irradiation area processing unit is further configured to:

the scanning unit is used for scanning each target row; the reading unit is used for reading the intensity of the ray received by each detection unit in the target row;

the image transmission unit is configured to send the intensity of the ray received by the detection unit in the target row that belongs to the target column to the image processing system.

the irradiation area processing unit is further configured to:

the scanning unit is used for scanning each line from the starting line to the ending line; the reading unit is used for reading the intensity of the ray received by each detection unit in the row;

the image transmission unit is configured to send the intensity of the ray received by the detection unit in the row between the start column and the end column to the image processing system.

According to a third aspect of embodiments of the present disclosure, there is provided a scanning apparatus comprising: the device comprises a flat panel detector, a rack, a ray emitter, a beam limiter and an image processing system, wherein the ray emitter is arranged on the rack and used for emitting rays, the rays are emitted to an object to be detected through the beam limiter, and the flat panel detector is used for receiving the rays penetrating through the object to be detected; the flat panel detector is used for implementing the steps of the method of the first aspect of the embodiments of the present disclosure;

the scanning device further includes: the beam limiting device comprises a rack position acquisition module and a beam limiting device control module;

the rack position acquisition module is used for acquiring first position information of the ray emitter;

and the beam limiter control module is used for acquiring the opening area of the beam limiter.

Optionally, the image processing system is configured to acquire detection information of the object to be detected, where the detection information includes a detection body position and a detection area.

Optionally, the first position information, the opening area and the detection information are sent to the flat panel detector through a data bus; or,

the first position information, the opening area and the detection information are sent to the flat panel detector through an image transmission link, and the image transmission link is a link for transmitting scanning information between the image processing system and the flat panel detector.

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of embodiments of the present disclosure.

According to a fifth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of an embodiment of the disclosure.

Through above-mentioned technical scheme, scanning device includes in this disclosure: the flat panel detector firstly acquires first position information of the ray emitter and the opening area of the beam limiter, and then determines an irradiation area of rays on the flat panel detector according to the first position information and the opening area. Under the condition that the ray emitter emits rays, the flat panel detector scans according to the irradiation area and reads scanning information in the irradiation area, wherein the scanning information comprises the intensity of the rays received in the irradiation area, and finally the flat panel detector sends the scanning information in the irradiation area to the image processing system so that the image processing system generates a scanning image according to the scanning information in the irradiation area. According to the method, the irradiation area of the ray irradiated on the flat panel detector is determined according to the first position of the ray emitter and the opening area of the beam limiter, so that scanning, reading and transmission are performed according to the irradiation area, the data transmission quantity can be reduced on the premise of not losing the image quality, the data transmission efficiency is improved, and meanwhile, the application range of the flat panel detector can be expanded.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a block diagram of a scanning device shown in accordance with an exemplary embodiment;

FIG. 2 is a flow diagram illustrating a method of scan information processing in accordance with an exemplary embodiment;

FIG. 3 is a flow diagram illustrating another scan information processing method in accordance with an exemplary embodiment;

FIG. 4 is a flow diagram illustrating another scan information processing method in accordance with an illustrative embodiment;

FIG. 5 is a flow diagram illustrating another scan information processing method in accordance with an illustrative embodiment;

FIG. 6 is a flow diagram illustrating another scan information processing method in accordance with an illustrative embodiment;

FIG. 7 is a schematic diagram illustrating an arrangement of detection units according to an exemplary embodiment;

FIG. 8 is a flow diagram illustrating another scan information processing method in accordance with an illustrative embodiment;

FIG. 9 is a block diagram illustrating a flat panel detector according to an exemplary embodiment;

FIG. 10 is a block diagram illustrating another flat panel detector in accordance with an exemplary embodiment;

FIG. 11 is a block diagram illustrating an electronic device in accordance with an example embodiment.

Description of the reference numerals

Scanning device 100 flat panel detector 101

Gantry 102 radiation emitter 103

Beam limiter 104 image processing system 105

Suspension rack horizontal axis 1021 suspension rack vertical axis 1022

Suspension lifting shaft 1023 suspension rotating shaft 1024

Chest frame lifting shaft 1025 chest frame rotating shaft 1026

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The irradiation area of the flat panel detector irradiated by rays is determined according to the first position of the ray emitter and the opening area of the beam limiter, so that scanning and reading are carried out according to the irradiation area, scanning information in the irradiation area is transmitted to the image processing system, and therefore the flat panel detector does not need to scan and read the scanning information outside the irradiation area and does not need to transmit the scanning information outside the irradiation area. Under the general condition, the flat panel detector is purchased from a third party and cannot be linked with other parts in the scanning equipment, so that the scanning information on the whole flat panel detector needs to be collected and transmitted, and the processing mode disclosed by the invention can effectively reduce the data transmission amount and improve the data transmission efficiency on the premise of not losing the image quality. Moreover, because the flat panel detector is expensive, a processing mode of collecting and transmitting scanning information on the whole flat panel detector in the prior art is adopted, if the flat panel detector has a dead pixel or a dead line, the flat panel detector needs to be replaced, and waste is caused. The irradiation area can be kept away from a dead spot or a dead line by controlling the frame and the beam limiter, so that the service life of the flat panel detector is prolonged, and the use range of the flat panel detector is expanded.

Before introducing the scan information processing method, the detector, the scanning device, the medium, and the electronic device provided by the present disclosure, an application scenario related to various embodiments of the present disclosure is first introduced. The application scenario may be a scanning device (e.g., a CT device, a CR device, a DR device, etc.), the scanning device is structured as shown in (a) of fig. 1, and the scanning device 100 includes: the device comprises a flat panel detector 101, a rack 102, a ray emitter 103, a beam limiter 104 (also called a collimator) and an image processing system 105, wherein the ray emitter 103 is arranged on the rack 102 and used for emitting rays, the rays are emitted to an object to be measured through the beam limiter 104, and the flat panel detector 101 is used for receiving the rays transmitted through the object to be measured. The object to be measured may be a human or an animal, or may be an organ or a part of a human or an animal. The flat panel detector 101 is capable of measuring the intensity of the radiation received at each location and transmitting the intensity of the radiation as scan information to the image processing system 105, and the image processing system 105 processes the scan information to generate a scan image (e.g., a CT image). It should be noted that the radiation mentioned in the embodiments of the present disclosure may be X-ray, gamma-ray, or the like, and the present disclosure does not specifically limit this. Further, the scanning device may further include an image display module (e.g., a display), a storage module (e.g., a memory such as a hard disk), a recording module (e.g., a workstation), and the like, which are not particularly limited by the present disclosure. The main execution body of the scanning information processing method provided by the present disclosure is the flat panel detector 101 described above.

It should be noted that the gantry 102 of the scanning apparatus 100 may include one or more movable axes and one or more rotatable axes to control the movement or rotation of the radiation emitter 103 in multiple dimensions. Taking (b) in fig. 1 as an example for illustration, the scanning apparatus 100 may include: suspension frame horizontal shaft 1021, suspension frame vertical shaft 1022, suspension frame lifting shaft 1023, suspension frame rotating shaft 1024, chest frame lifting shaft 1025 and chest frame rotating shaft 1026 can also be included, radiation emitter 103 is arranged on suspension frame rotating shaft 1024, and flat panel detector 101 is arranged on chest frame rotating shaft 1026. Taking a three-dimensional coordinate system as an example, the transverse suspension frame axis 1021 may control the radiation emitter 103 to move in the Y-axis direction, the longitudinal suspension frame axis 1022 may control the radiation emitter 103 to move in the X-axis direction, the lifting suspension frame axis 1023 may control the radiation emitter 103 to move in the Z-axis direction, and the rotational suspension frame axis 1024 may control the emitting angle of the radiation emitter 103. The frame lifting axis 1025 can control the movement of the flat panel detector 101 in the Z-axis direction, and the frame rotation axis 1026 can control the receiving angle of the flat panel detector 101.

Fig. 2 is a flowchart illustrating a scanning information processing method according to an exemplary embodiment, where the method is applied to a flat panel detector in a scanning device, as shown in fig. 2, and the scanning device further includes: the device comprises a rack, a ray emitter, a beam limiter and an image processing system, wherein the ray emitter is arranged on the rack and used for emitting rays, the rays are emitted to an object to be detected through the beam limiter, and the flat panel detector is used for receiving the rays penetrating through the object to be detected. The method may comprise the steps of:

in step 201, first position information of the radiation emitter and an opening area of the beam limiter are obtained.

And step 202, determining an irradiation area of the ray on the flat panel detector according to the first position information and the opening area.

For example, before scanning the object to be measured with the scanning device, the scanning device may adjust the rack and the beam limiter according to parameters such as a shape and a size of the object to be measured, so that the radiation emitted by the radiation emitter disposed on the rack can be emitted toward the object to be measured through the beam limiter. The scanning device may be provided with a gantry position acquisition module, configured to acquire first position information of the radiation emitter and send the first position information to the flat panel detector, where the first position information may represent a posture of the radiation emitter, and may include a position of the gantry, a coordinate of the radiation emitter in a three-dimensional coordinate system, an irradiation angle of the radiation emitter, a position of the radiation emitter relative to the flat panel detector, and an angle of the radiation emitter relative to the flat panel detector. The scanning device can also be provided with a beam limiter control module which is used for collecting the opening area of the beam limiter and sending the opening area to the flat panel detector. The opening area of the beam limiter is used for representing the size of the opening of the beam limiter, and the opening of the beam limiter can limit the radiation field of the radiation emitted by the radiation emitter.

After the flat panel detector acquires the first position information and the opening area, the irradiation area of the ray on the flat panel detector can be determined according to the first position information and the opening area. The irradiation area is the area where rays pass through the beam limiter and the object to be measured and irradiate on the flat panel detector. The first position information can represent the relative position relationship between the ray emitter and the flat panel detector, and the beam limiter determines the size and the shape of an irradiated area, so that the area of the flat panel detector irradiated by rays can be determined by combining the first position information and the opening area. Taking the structural relationship shown in (b) in fig. 1 as an example, the region with the diameter AB is the opening of the beam limiter, and the region with the diameter CD is the irradiation region, so that the irradiation region can be determined according to the geometric relationship based on the coordinates of the radiation emitter in the three-dimensional coordinate system, the irradiation angle of the radiation emitter, and the opening area, which are included in the first position information. Taking the point E in fig. 1 (b) to represent the position of the radiation emitter, the position from E to AB to p, which can be understood as the distance between the radiation emitter and the beam limiter, and taking the radiation emitter to irradiate the flat panel detector perpendicularly to the example, the length of AB is represented by a, the distance between the radiation emitter and the flat panel detector is represented by b, and the length of CD is represented by x, such an equation [ (x-a)/2]/b is (a/2)/p can be obtained. Since the positional relationship between the radiation emitter and the beam limiter in the scanning device is fixed, p is known, the length of a can be determined by the opening area, and the length of b can be determined according to the first position information, so that x ═ b)/p + a can be solved. After x is obtained, the illuminated area can be further determined.

Step 203, in the case that the ray emitter emits the ray, scanning the irradiation area, and reading the scanning information in the irradiation area, wherein the scanning information includes the intensity of the ray received in the irradiation area.

And step 204, sending the scanning information in the irradiation area to the image processing system so that the image processing system generates a scanning image according to the scanning information in the irradiation area.

For example, after the irradiation region is determined, the radiation emitter may be controlled to emit radiation to the object to be measured on the flat panel detector, and the flat panel detector may scan according to the irradiation region determined in step 202, and simultaneously read the scanning information in the irradiation region. The flat panel detector may include a plurality of detection units arranged in an array, and the scanning of the irradiation region may be understood as powering on the detection units in the irradiation region, so that the detection units in the irradiation region may detect intensities of the rays received by the detection units, and the reading of the scanning information may be understood as reading the intensities of the rays detected by the detection units in the irradiation region. The scan information within the illumination region may then be transmitted to an image processing system to cause the image processing system to generate a scan image from the scan information within the illumination region. In one implementation, it may be determined which rows the irradiation area covers, and then the rows are scanned line by line while the intensity of the detected rays (i.e., scan information) is read column by column for each row. After scanning information of one line is read, the scanning information of one line can be transmitted to the image processing system, and a next line is scanned at the same time. In another mode, after the scanning of each line in the irradiation area is completed and the scanning information of each line in the irradiation area is read, the scanning information of each line in the irradiation area is sent to the image processing system together. Compared with the prior art that scanning information on the whole flat panel detector is collected and transmitted, the scanning information in the irradiation region is only collected and transmitted, the data transmission amount can be effectively reduced on the premise that the image quality is not lost, and the data transmission efficiency is improved. If the flat panel detector has a dead pixel or a dead line, the irradiation area can be kept away from the dead pixel or the dead line by controlling the frame and the beam limiter, the service life of the flat panel detector is prolonged, and the application range of the flat panel detector is expanded.

Fig. 3 is a flow chart illustrating another scan information processing method according to an exemplary embodiment, in which, as shown in fig. 3, the gantry includes a movable axis for controlling a relative position of the radiation emitter and the flat panel detector and a rotatable axis for controlling a relative angle of the radiation emitter and the flat panel detector. The first location information includes: the position of the movable axis and the angle of the rotatable axis.

Taking (b) in fig. 1 as an example for explanation, the movable shaft may include: suspension frame horizontal axis 1021, suspension frame vertical axis 1022, suspension frame lift axis 1023, and chest frame lift axis 1025, the rotatable axes may include: a hanger rotation shaft 1024 and a chest frame rotation shaft 1026.

Implementations of step 202 may include:

step 2021, determining a central coordinate of the radiation emitter corresponding to the flat panel detector and a relative distance between the radiation emitter and the flat panel detector according to the position of the movable axis.

Step 2022, determining a relative angle of the radiation emitter with respect to the flat panel detector according to the angle of the rotatable shaft.

For example, the center coordinates of the radiation emitter corresponding to the flat panel detector and the relative distance between the radiation emitter and the flat panel detector may be first determined according to the position of each movable axis included in the first position information. The central coordinates can be understood as the coordinates of the center of the illuminated area and the relative distance can be understood as the distance from the position of the radiation emitter to the plane of the flat panel detector. Specifically, the center coordinates may be determined according to the position of the horizontal axis 1021 of the suspension frame and the position of the lifting axis 1023 of the suspension frame, and the relative distance may be determined according to the position of the vertical axis 1022 of the suspension frame. Taking the coordinates of the geometric center of the flat panel detector as (0, 0, 0) for example (i.e. the geometric center of the flat panel detector is taken as the origin of the three-dimensional coordinate system), when the coordinates of the horizontal axis 1021 of the suspension bracket are 2 on the Y axis and the coordinates of the vertical axis 1023 of the suspension bracket are 3 on the Z axis, the coordinates of the center are (0, 2, 3). If the hanger longitudinal axis 1022 has a coordinate of-5 on the X-axis, the relative distance is 5.

Further, the relative angle of the radiation emitter with respect to the flat panel detector may be determined based on the angle of the rotatable shaft. The relative angle can be understood as the angle between the direction of the ray emitted by the ray emitter and the plane of the flat panel detector. Specifically, the relative angle can be determined based on the angle of the hanger rotation axis 1024 and the angle of the chest frame rotation axis 1026. For example, the relative angle is a non-obtuse angle, in an initial state, the included angle between the direction of the radiation emitted by the radiation emitter and the plane where the flat panel detector is located is 90 degrees (that is, the relative angle is 90 degrees), at this time, the angle of the rotating shaft 1024 of the hanging frame is 0, and the angle of the rotating shaft 1026 of the chest stand is 0. If the hanger rotation axis 1024 rotates 30 degrees in the first direction and the angle of the chest stand rotation axis 1026 remains constant, then the relative angle is 60 degrees. If the angle of the hanger rotation shaft 1024 is kept constant and the chest frame rotation shaft 1026 rotates 20 degrees in the second direction, the relative angle is 70 degrees.

Step 2023, determining the area of the irradiation region according to the opening area, the relative distance and the relative angle.

Step 2024, determining a coordinate range of the irradiation region on the flat panel detector according to the central coordinate and the area of the irradiation region.

For example, after determining the opening area, relative distance, and relative angle, the area of the illuminated region may be determined. In-line with the aboveAnd then, further determining the coordinate range of the irradiation region on the flat panel detector according to the central coordinate and the area of the irradiation region. Also taking the geometrical relationship shown in fig. 1 (b) as an example, the position of E to AB is denoted as p, the radiation emitter is irradiated perpendicularly to the flat panel detector (i.e. at a relative angle of 90 degrees), the length of AB is denoted as a, the relative distance is denoted as b, and the length of CD is denoted as x. If the opening of the beam limiter is a circle with a radius of a/2, the opening area is pi (a/2)²Then, the shape of the irradiation region is also circular, x is obtained from x ═ a × b)/p + a, and then the area of the irradiation region can be determined to be pi (x/2)². Correspondingly, the coordinate range of the irradiation area on the flat panel detector is a circular range with the center coordinate as the center of a circle and the radius of x/2.

Fig. 4 is a flowchart illustrating another scan information processing method according to an exemplary embodiment, and as shown in fig. 4, before step 202, the method may further include:

step 205, obtaining detection information of the object to be detected, wherein the detection information includes a detection body position.

And step 206, determining second position information of the flat panel detector according to the detection information.

Accordingly, the implementation manner of step 202 may be:

the irradiation region is determined based on the first position information, the opening area, and the second position information.

For example, a plurality of flat panel detectors may be provided in the scanning device to accommodate different detected body positions. For example: the flat panel detector arranged on the chest stand is suitable for the detection body position of the object to be detected and comprises the following components: the vertical position, the flat panel detector who sets up on the scanning bed is applicable to the detection position of the object that awaits measuring and is: the horizontal position, the detection position that the flat panel detector that independently sets up is applicable to the object that awaits measuring is: sitting position, etc. The scanning device may also be provided with a flat panel detector, which may be arranged at different positions to accommodate different detection body positions. For example, when the flat panel detector is arranged on the chest stand, the detection body positions suitable for the object to be detected are as follows: the vertical position, when flat panel detector set up on the scanning bed, the detection position that is applicable to the object that awaits measuring is: lying in the horizontal position. The position of the flat panel detector is different, and the geometrical relationship with the ray emitter is also different, so before the irradiation area is determined, the detection information of the object to be detected, including the detection body position, can be determined, wherein the detection information can be sent to the flat panel detector by an image processing system, for example.

Then, second position information of the current flat panel detector can be determined according to the detected body position, and the second position information can represent the current posture of the flat panel detector and can comprise coordinates and angles of the flat panel detector in a three-dimensional coordinate system. Thus, the position of the ray emitter relative to the flat panel detector and the angle of the ray emitter relative to the flat panel detector can be determined according to the first position information and the second position information, and further, the irradiation area is determined by combining the opening area. The manner of determining the irradiation region according to the first position information, the opening area and the second position information is the same as the determination manner in the above embodiment, and is not described herein again.

Fig. 5 is a flowchart illustrating another scan information processing method according to an exemplary embodiment, and as shown in fig. 5, detecting information further includes: and detecting the area. After step 202, the method may further comprise:

step 207, determine whether the irradiation region matches the detection region.

And step 208, if the irradiation area is not matched with the detection area, sending a prompt message.

Accordingly, the implementation manner of step 203 may be:

in the case where the irradiation region matches the detection region and the radiation emitter emits radiation, the irradiation region is scanned and scanning information within the irradiation region is read.

For example, after the irradiation region is determined, in order to further ensure that the irradiation region can meet the detection requirement of the object to be detected, the irradiation region may be compared with the detection region included in the detection information sent by the image processing system to determine whether the irradiation region and the detection region are matched. If the irradiation area is matched with the detection area, the radiation emitter may be controlled to emit radiation to the object to be detected on the flat panel detector, and at this time, the flat panel detector may scan according to the irradiation area determined in step 202, and simultaneously read the scanning information in the irradiation area. If the irradiation area is not matched with the detection area, prompt information can be sent to prompt that the irradiation area of the current scanning device cannot meet the detection requirement of the object to be detected, so that the technician can refer to the irradiation area, and the scanning device can be adjusted.

Specifically, the area of the irradiation region and the area of the detection region may be compared, and if the area of the irradiation region is greater than or equal to the area of the detection region and the ratio of the area of the irradiation region to the area of the detection region does not exceed a preset ratio threshold (e.g., 1.2), it may be determined that the irradiation region and the detection region are matched. If the area of the illumination region is smaller than the area of the detection region, or the ratio of the area of the illumination region to the area of the detection region exceeds a ratio threshold, it may be determined that the illumination region does not match the detection region. For example, if the detection region included in the detection information is the palm of the human hand, the area of the detection region is about 100 square centimeters, and if the area of the irradiation region determined in step 202 is 110 square centimeters, the irradiation region is matched with the detection region, that is, the irradiation region can cover the palm of the human hand. If the area of the irradiation region determined in step 202 is 90 square centimeters, the irradiation region does not match the detection region, that is, the irradiation region cannot cover the palm of the human hand, and the detection requirement for the palm cannot be met.

Fig. 6 is a flowchart illustrating another scan information processing method according to an exemplary embodiment, where as shown in fig. 6, the flat panel detector includes a plurality of detection units, and the plurality of detection units are arranged in an array. Prior to step 203, the method may further comprise:

at step 209, at least one target row covered by the illumination area and at least one target column are determined.

For example, the flat panel detector may include a plurality of detection units, the plurality of detection units are arranged in an array, and the flat panel detector may be regarded as a matrix, where each element in the matrix corresponds to one detection unit. For example, the arrangement of the detecting units is shown in fig. 7, which includes 100 detecting units, which are divided into 10 rows and 10 columns. Then, after determining the irradiation area, a target row and a target column covered by the irradiation area may be determined, and it is understood that the detection unit present in the target row belongs to the irradiation area and the detection unit present in the target column belongs to the irradiation area. The circle shown by the dotted line in fig. 7 is taken as an irradiation area for example, the target rows covered by the irradiation area are 3 rd to 8 th rows, and the target columns are 1 st to 6 th columns.

It should be noted that the target rows may be distributed or continuous, and likewise, the target columns may be distributed or continuous, and the disclosure is not limited thereto. For example, the target row may be row 1, row 3, and row 7, and the target column may be column 5 and column 6. Further, a corresponding relationship between the target rows and the target columns may also be established, that is, the target columns corresponding to each target row may be different. For example, the target rows include a 1 st row, a 3 rd row and a 7 th row, the target columns include a 2 nd column, a 5 th column, a 6 th column and a 7 th column, and correspondingly, the target column corresponding to the 1 st row is the 5 th column and the 7 th column, the target column corresponding to the 3 rd row is the 2 nd column and the 7 th column, and the target column corresponding to the 7 th row is the 5 th column and the 6 th column.

For each target row, the implementation of step 203 may be:

and scanning the target row and reading the intensity of the ray received by each detection unit in the target row.

The implementation of step 204 may be:

and sending the intensity of the ray received by the detection unit belonging to the target column in the target row to an image processing system.

For example, when the radiation emitter emits radiation to the object to be detected on the flat panel detector, the flat panel detector may sequentially scan each target row and read the intensity of the radiation received by each detection unit in the target row. And simultaneously, screening the intensity of the ray received by each detection unit in the read target row, and only sending the intensity of the ray received by the detection unit belonging to the target column in the target row to an image processing system. That is, the intensities of the rays received by all the detection units in the target row may be read, and then only the intensities of the rays received by the detection units belonging to the target column are transmitted to the image processing system at the time of transmission. Therefore, the flat panel detector only comprises the ray intensity received by the detection unit in the irradiation area, which is sent to the image processing system, so that the data transmission quantity is further reduced, and the data transmission efficiency is improved. Specifically, after the scanning information of each target row is read, the intensity of the ray received by the detection unit belonging to the target column in the target row can be transmitted to the image processing system, and meanwhile, the next target row behind the target row can be scanned, so that the acquisition and reading processes and the sending of the scanning information can be processed in parallel, and the generation efficiency of the scanning image is further improved.

Fig. 8 is a flowchart illustrating another scan information processing method according to an exemplary embodiment, where as shown in fig. 8, the flat panel detector includes a plurality of detection units, and the plurality of detection units are arranged in an array. Prior to step 203, the method may further comprise:

step 210, determining a start row, an end row, a start column and an end column of the boundary of the irradiation area.

For example, the flat panel detector includes a plurality of detection units, the plurality of detection units are arranged in an array, and the flat panel detector can be regarded as a matrix, and each element in the matrix corresponds to one detection unit. After the irradiation area is determined, a start row, an end row, a start column and an end column at which the boundary of the irradiation area is located may be determined, where it is understood that the start row is a row with the smallest number of rows covered by the irradiation area, and the end row is a row with the largest number of rows covered by the irradiation area, and similarly, the start column is a column with the smallest number of columns covered by the irradiation area, and the end column is a column with the largest number of columns covered by the irradiation area. Accordingly, steps 203 to 204 may be performed with all rows between the starting row and the ending row, and all columns between the starting column and the ending column as targets.

For each of the starting row to the ending row, the implementation manner of step 203 may be:

the row is scanned and the intensity of the radiation received by each detection unit in the row is read.

The implementation of step 204 may be:

and sending the intensity of the ray received by the detection unit from the initial column to the final column in the row to an image processing system.

For example, when the radiation emitter emits a radiation to the object to be measured on the flat panel detector, the flat panel detector may sequentially scan each of the starting row to the ending row, and read the intensity of the radiation received by each detection unit in the row. And simultaneously, screening the intensity of the read ray received by each detection unit in the row, and sending the intensity of the ray received by the detection unit which belongs to the position between the initial column and the final column in the row to an image processing system. That is, the intensities of the rays received by all the detection units in the row may be read, and then only the intensities of the rays received by the detection units belonging between the start column and the end column are transmitted to the image processing system at the time of transmission. Therefore, the flat panel detector only comprises the ray intensity received by the detection unit in the irradiation area, which is sent to the image processing system, so that the data transmission quantity is further reduced, and the data transmission efficiency is improved. Specifically, after the scanning information of each line from the starting line to the ending line is read, the intensity of the ray received by the detection unit in the line between the starting column and the ending column can be transmitted to the image processing system, and meanwhile, the next line after the line can be scanned, so that the acquisition and reading processing and the sending of the scanning information can be processed in parallel, and the generation efficiency of the scanning image is further improved.

In summary, the scanning apparatus in the present disclosure includes: the flat panel detector firstly acquires first position information of the ray emitter and the opening area of the beam limiter, and then determines an irradiation area of rays on the flat panel detector according to the first position information and the opening area. Under the condition that the ray emitter emits rays, the flat panel detector scans according to the irradiation area and reads scanning information in the irradiation area, wherein the scanning information comprises the intensity of the rays received in the irradiation area, and finally the flat panel detector sends the scanning information in the irradiation area to the image processing system so that the image processing system generates a scanning image according to the scanning information in the irradiation area. According to the method, the irradiation area of the ray irradiated on the flat panel detector is determined according to the first position of the ray emitter and the opening area of the beam limiter, so that scanning, reading and transmission are performed according to the irradiation area, the data transmission quantity can be reduced on the premise of not losing the image quality, the data transmission efficiency is improved, and meanwhile, the application range of the flat panel detector can be expanded.

Fig. 9 is a block diagram illustrating a flat panel detector according to an exemplary embodiment, and as shown in fig. 9, the flat panel detector 300 includes: an irradiation region processing unit 301, a scanning unit 302, a reading unit 303, and an image transmission unit 304.

An irradiation region processing unit 301 for acquiring first position information of the radiation emitter and an opening area of the beam limiter. And determining an irradiation area of the ray on the flat panel detector according to the first position information and the opening area.

A scanning unit 302 for scanning the irradiation area in case the radiation emitter emits radiation. A reading unit 303, configured to read scanning information in the irradiation area, where the scanning information includes an intensity of the received radiation in the irradiation area.

And an image transmission unit 304, configured to send the scanning information in the irradiation region to the image processing system, so that the image processing system generates a scanned image according to the scanning information in the irradiation region.

Specifically, the flat panel detector 300 may further include a control unit to control the irradiation region processing unit 301, the scanning unit 302, the reading unit 303, and the image transmission unit 304 to perform corresponding processes.

In one application scenario, the gantry includes a movable axis for controlling a relative position of the radiation emitter and the flat panel detector and a rotatable axis for controlling a relative angle of the radiation emitter and the flat panel detector. The first location information includes: the position of the movable axis and the angle of the rotatable axis.

Accordingly, the irradiation region processing unit 301 may be configured to:

and determining the central coordinate of the ray emitter corresponding to the flat panel detector and the relative distance between the ray emitter and the flat panel detector according to the position of the movable shaft.

The relative angle of the radiation emitter with respect to the flat panel detector is determined from the angle of the rotatable shaft.

And determining the area of the irradiation area according to the opening area, the relative distance and the relative angle.

In another application scenario, the irradiation region processing unit 301 is further configured to:

before determining the irradiation area of the ray on the flat panel detector according to the first position information and the opening area, acquiring detection information of the object to be detected, wherein the detection information comprises a detection body position.

And determining second position information of the flat panel detector according to the detection information.

Fig. 10 is a block diagram illustrating another flat panel detector according to an exemplary embodiment, as shown in fig. 10, the detecting information further includes: and detecting the area. The flat panel detector further includes: a detection unit 305.

The detection unit 305 is configured to:

and judging whether the irradiation area is matched with the detection area.

And if the irradiation area is not matched with the detection area, sending out prompt information.

Accordingly, the scanning unit 302 is configured to scan the irradiation region when the irradiation region matches the detection region and the radiation emitter emits the radiation. A reading unit 303 for reading the scanning information in the irradiation area.

In yet another application scenario, the flat panel detector includes a plurality of detection units, and the plurality of detection units are arranged in an array.

The irradiation region processing unit 301 may be further configured to:

at least one target row, and at least one target column, covered by the illuminated area is determined.

A scanning unit 302, configured to scan each target row. A reading unit 303, configured to read an intensity of the radiation received by each detection unit in the target row.

And an image transmission unit 304, configured to send the intensity of the radiation received by the detection unit belonging to the target column in the target row to an image processing system.

The irradiation region processing unit 301 is also configured to:

a start row, an end row, a start column and an end column are determined at which the boundary of the illuminated area is located.

A scanning unit 302 for scanning each of the starting row to the ending row. A reading unit 303 for reading the intensity of the radiation received by each detection unit in the row.

And the image transmission unit 304 is used for sending the intensity of the ray received by the detection unit from the start column to the end column in the row to the image processing system.

With regard to the flat panel detector in the above-described embodiment, the specific manner in which each unit performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.

Also provided in an embodiment of the present disclosure is a block diagram of a scanning apparatus, as shown in (a) of fig. 1, the scanning apparatus 100 includes: the device comprises a flat panel detector 101, a rack 102, a ray emitter 103, a beam limiter 104 and an image processing system 105, wherein the ray emitter 103 is arranged on the rack 102 and used for emitting rays, the rays are emitted to an object to be measured through the beam limiter 104, and the flat panel detector 101 is used for receiving the rays penetrating through the object to be measured. The flat panel detector 101 is used to implement any of the steps of the scanning information processing method shown in the embodiments of the present disclosure.

The scanning device 100 may further include: a frame position acquisition module and a beam limiter control module. Wherein a gantry position acquisition module, which may be disposed on the gantry 102, for example, and a beam limiter control module, which may be disposed on the beam limiter 104, for example, are not shown in fig. 1.

And the rack position acquisition module is used for acquiring first position information of the ray emitter and sending the first position information to the flat panel detector 101.

And the beam limiter control module is used for acquiring the opening area of the beam limiter and sending the opening area to the flat panel detector 101.

In an application scenario, the image processing system 105 is configured to collect detection information of an object to be detected, and send the detection information to the flat panel detector 101, where the detection information includes a detection body position and a detection area.

In another application scenario, the first position information, the opening area and the detection information are sent to the flat panel detector 101 through a data bus. Or,

the first position information, the opening area, and the detection information are transmitted to the flat panel detector 101 through an image transmission link, which is a link for transmitting scanning information between the image processing system 105 and the flat panel detector 101.

For example, in one implementation, the first position information, the opening area, and the detection information may be sent to the flat panel detector 101 through a data bus, and the gantry position acquisition module, the beam limiter control module, and the image processing system 105 all communicate with the flat panel detector 101 through the data bus. The data bus may be, for example, a PCI bus, an ISA bus, etc., which is not limited in this disclosure. In another implementation, the first position information, the opening area, and the detection information may be transmitted to the flat panel detector 101 through an image transmission link, wherein the image transmission link may be understood as a link between the image processing system 105 and the flat panel detector 101 for transmitting the scanning information. That is, the gantry position acquisition module and the beam limiter control module may transmit the first position information and the opening area to the image processing system 105 through the data bus, and then the image processing system 105 transmits the first position information, the opening area, and the detection information to the flat panel detector 101 through the image transmission link.

With regard to the scanning device in the above-described embodiment, the specific manner in which the respective modules perform operations has been described in detail in the embodiment related to the method, and will not be elaborated upon here.

Fig. 11 is a block diagram illustrating an electronic device 400 according to an example embodiment. As shown in fig. 11, the electronic device 400 may include: a processor 401 and a memory 402. The electronic device 400 may also include one or more of a multimedia component 403, an input/output (I/O) interface 404, and a communications component 405.

The processor 401 is configured to control the overall operation of the electronic device 400, so as to complete all or part of the steps in the above-mentioned scan information processing method. The memory 402 is used to store various types of data to support operation at the electronic device 400, such as instructions for any application or method operating on the electronic device 400 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 402 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 403 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 402 or transmitted through the communication component 405. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 404 provides an interface between the processor 401 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 405 is used for wired or wireless communication between the electronic device 400 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 405 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic Device 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described scan information Processing method.

In another exemplary embodiment, there is also provided a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the scan information processing method described above. For example, the computer readable storage medium may be the memory 402 comprising program instructions executable by the processor 401 of the electronic device 400 to perform the scan information processing method described above.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned scan information processing method when executed by the programmable apparatus.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A method for processing scanning information, which is applied to a flat panel detector in a scanning device, the scanning device further comprising: the device comprises a rack, a ray emitter, a beam limiter and an image processing system, wherein the ray emitter is arranged on the rack and used for emitting rays, the rays are emitted to an object to be detected through the beam limiter, and the flat panel detector is used for receiving the rays penetrating through the object to be detected; the method comprises the following steps:

2. The method of claim 1, wherein the gantry includes a movable axis for controlling a relative position of the radiation emitter and the flat panel detector and a rotatable axis for controlling a relative angle of the radiation emitter and the flat panel detector; the first location information includes: a position of the movable shaft and an angle of the rotatable shaft;

3. The method according to claim 1, wherein before the determining an irradiation region of the ray on the flat panel detector according to the first position information and the opening area, the method further comprises:

4. The method of claim 3, wherein the detecting information further comprises: detecting a region; after the determining the irradiation region from the first position information, the opening area, and the second position information, the method further includes:

judging whether the irradiation area is matched with the detection area;

5. The method of claim 1, wherein the flat panel detector comprises a plurality of detection units, the plurality of detection units being arranged in an array; before the scanning the irradiation region and reading the scanning information in the irradiation region, the method further comprises:

6. The method of claim 1, wherein the flat panel detector comprises a plurality of detection units, the plurality of detection units being arranged in an array; before the scanning the irradiation region and reading the scanning information in the irradiation region, the method further comprises:

7. A flat panel detector, characterized in that the flat panel detector comprises: an irradiation area processing unit, a scanning unit, a reading unit, and an image transmission unit;

8. A scanning device, characterized in that the scanning device comprises: the device comprises a flat panel detector, a rack, a ray emitter, a beam limiter and an image processing system, wherein the ray emitter is arranged on the rack and used for emitting rays, the rays are emitted to an object to be detected through the beam limiter, and the flat panel detector is used for receiving the rays penetrating through the object to be detected; the flat panel detector is used for realizing the steps of the method of any one of claims 1-6;

9. The scanning device according to claim 8, wherein the image processing system is configured to collect detection information of the object to be detected, and the detection information includes a detection body position and a detection area.

10. The scanning device according to claim 9, wherein the first position information, the opening area, and the detection information are transmitted to the flat panel detector through a data bus; or,

11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.

12. An electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 6.