CN114271851B - Imaging method, device, equipment and storage medium based on concave array probe - Google Patents
Imaging method, device, equipment and storage medium based on concave array probe Download PDFInfo
- Publication number
- CN114271851B CN114271851B CN202111585737.0A CN202111585737A CN114271851B CN 114271851 B CN114271851 B CN 114271851B CN 202111585737 A CN202111585737 A CN 202111585737A CN 114271851 B CN114271851 B CN 114271851B
- Authority
- CN
- China
- Prior art keywords
- array probe
- concave array
- concave
- focusing
- circle center
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention relates to the technical field of ultrasound, and discloses an imaging method, device, equipment and storage medium based on a concave array probe. According to the invention, the extended circle center position corresponding to the concave array probe image is obtained, then the concave array probe image is extended based on the extended circle center position, the extended concave array probe image is obtained, then the intersection point position of the scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe is obtained, then the focusing parameter of the concave array probe is determined according to the extended circle center position and the intersection point position, and concave array imaging is carried out according to the focusing parameter. According to the invention, the concave array probe is used for imaging, so that the concave array probe is in close contact with the breast, the echo signal intensity is high, the image of the concave array probe is expanded based on the position of the expanded circle center, the visual field can be widened, the focusing parameters of the concave array probe are determined according to the position of the expanded circle center and the position of the intersection point, and the concave array imaging is performed according to the focusing parameters, so that the imaging is performed accurately through the concave array probe.
Description
Technical Field
The present invention relates to the field of ultrasound technologies, and in particular, to an imaging method, apparatus, device, and storage medium based on a concave array probe.
Background
The conventional probes in the existing ultrasonic scanning device are a convex array, a linear array and a phased array, when a breast is inspected, the surfaces of the probes cannot be clung to the measured part, so that certain inconvenience is caused to diagnosis and treatment of the breast, and the tiny focus possibly cannot be found. Therefore, how to accurately perform imaging through the concave array probe becomes a problem to be solved.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide an imaging method, device, equipment and storage medium based on a concave array probe, which aim to solve the technical problem of how to accurately image through the concave array probe.
In order to achieve the above object, the present invention provides an imaging method based on a concave array probe, the imaging method based on a concave array probe comprising:
acquiring an extended circle center position corresponding to the concave array probe image;
expanding the concave array probe image based on the expanded circle center position to obtain an expanded concave array probe image;
acquiring the intersection point position of a scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe;
and determining focusing parameters of the concave array probe according to the expansion circle center position and the intersection point position, and performing concave array imaging according to the focusing parameters.
Optionally, the step of acquiring the extended circle center position corresponding to the concave array probe image specifically includes:
acquiring a circle center position corresponding to a concave array element in a concave array probe image, and determining a central line of the concave array probe image according to the circle center position;
and extending the central line according to a preset extension length to obtain an extension circle center position corresponding to the circle center position.
Optionally, the step of determining a focusing parameter of the concave array probe according to the extended circle center position and the intersection point position and performing concave array imaging according to the focusing parameter specifically includes:
determining a target scanning line and a target array element in the extended concave array probe image according to the extended circle center position and the intersection point position;
acquiring a focusing position corresponding to the target scanning line, and determining focusing parameters corresponding to the concave array probe according to the central position of the target array element and the focusing position;
and performing concave array imaging according to the focusing parameters.
Optionally, the step of determining the target scan line and the target array element in the extended concave array probe image according to the extended circle center position and the intersection point position specifically includes:
determining all scanning lines passing through the extended circle center position in the extended concave array probe image according to preset scanning line density, and acquiring intersection points of all the scanning lines and surface edge lines of a concave array probe;
sequencing the intersection points to obtain sequenced intersection points;
determining all the array elements in the extended concave array probe image according to the number of preset array elements, and sequencing the array elements to obtain sequenced array elements;
and determining a target scanning line and a target array element in the extended concave array probe image according to the ordered intersection points and the ordered array elements.
Optionally, the step of acquiring the focusing position corresponding to the target scan line and determining the focusing parameter corresponding to the concave array probe according to the central position of the target array element and the focusing position specifically includes:
acquiring a focusing position corresponding to the target scanning line and an intersection point position corresponding to the target scanning line;
determining a first distance according to the central position of the target array element and the intersection point position;
determining a second distance from the intersection point position and the focus position;
and determining focusing parameters corresponding to the concave array probe according to the first distance and the second distance.
Optionally, the step of determining the first distance according to the center position of the target array element and the intersection position specifically includes:
determining the radius of the concave array probe image according to the central position of the target array element;
constructing a first connecting line based on an array element point corresponding to the central position of the target array element and a circle center corresponding to the circle center position;
constructing a second connecting line based on the intersection point corresponding to the intersection point position and the circle center;
acquiring a first included angle between the first connecting line and the second connecting line;
and determining a first distance according to the radius and the first included angle.
Optionally, the focusing parameters include: a first parameter and a second parameter;
the step of determining the focusing parameter corresponding to the concave array probe according to the first distance and the second distance specifically includes:
determining auxiliary parameters according to a working clock of the FPGA processing unit and the ultrasonic sound velocity;
determining the first parameter according to the first distance and the auxiliary parameter;
constructing a third connecting line based on the array element point and the intersection point, and constructing a fourth connecting line based on the intersection point and a focusing point corresponding to the focusing position;
acquiring a second included angle between the third connecting line and the fourth connecting line;
and determining the second parameter according to the second distance, the auxiliary parameter and the second included angle.
In addition, in order to achieve the above object, the present invention also provides an imaging device based on a concave array probe, the imaging device based on a concave array probe includes:
the position acquisition module is used for acquiring the extended circle center position corresponding to the concave array probe image;
the image expansion module is used for expanding the concave array probe image based on the expansion circle center position to obtain an expanded concave array probe image;
the position acquisition module is also used for acquiring the intersection point position of the scanning line passing through the extended circle center position and the surface edge line of the concave array probe in the extended concave array probe image;
and the concave array imaging module is used for determining focusing parameters of the concave array probe according to the expansion circle center position and the intersection point position and carrying out concave array imaging according to the focusing parameters.
In addition, in order to achieve the above object, the present invention also proposes an imaging apparatus based on a concave array probe, the imaging apparatus based on a concave array probe comprising: a memory, a processor, and a concave array probe-based imaging program stored on the memory and executable on the processor, the concave array probe-based imaging program configured to implement a concave array probe-based imaging method as described above.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon a concave-array probe-based imaging program which, when executed by a processor, implements the concave-array probe-based imaging method as described above.
According to the invention, the extended circle center position corresponding to the concave array probe image is obtained, then the concave array probe image is extended based on the extended circle center position, the extended concave array probe image is obtained, then the intersection point position of the scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe is obtained, then the focusing parameter of the concave array probe is determined according to the extended circle center position and the intersection point position, and concave array imaging is carried out according to the focusing parameter. According to the invention, the concave array probe is used for imaging, so that the concave array probe is in close contact with the breast, the echo signal intensity is high, the image of the concave array probe is expanded based on the position of the expanded circle center, the visual field can be widened, the focusing parameters of the concave array probe are determined according to the position of the expanded circle center and the position of the intersection point, and the concave array imaging is performed according to the focusing parameters, so that the imaging can be accurately performed through the concave array probe.
Drawings
FIG. 1 is a schematic diagram of a structure of a concave array probe-based imaging device of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart of a first embodiment of a concave array probe-based imaging method of the present invention;
FIG. 3 is a schematic illustration of an image of a concave array probe according to the present invention;
FIG. 4 is a schematic view of an ultrasonic scanning device according to the present invention;
FIG. 5 is a schematic diagram showing the connection relationship between the array elements and the channels in the high voltage switch circuit of the present invention;
FIG. 6 is a flow chart of a second embodiment of a concave array probe-based imaging method of the present invention;
FIG. 7 is a flow chart of a third embodiment of a concave array probe-based imaging method of the present invention;
FIG. 8 is another schematic illustration of an image of a concave array probe according to the present invention;
FIG. 9 is another schematic illustration of an image of a concave array probe according to the present invention;
FIG. 10 is another schematic illustration of an image of a concave array probe according to the present invention;
fig. 11 is a block diagram showing the structure of a first embodiment of the concave array probe-based imaging device of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an imaging device based on a concave array probe in a hardware operation environment according to an embodiment of the present invention.
As shown in fig. 1, the concave array probe-based imaging apparatus may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the configuration shown in fig. 1 is not limiting of a concave array probe-based imaging device and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a concave array probe-based imaging program may be included in a memory 1005 as one type of storage medium.
In the concave array probe-based imaging device shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the imaging device based on the concave array probe can be arranged in the imaging device based on the concave array probe, and the imaging device based on the concave array probe calls the imaging program based on the concave array probe stored in the memory 1005 through the processor 1001 and executes the imaging method based on the concave array probe provided by the embodiment of the invention.
The embodiment of the invention provides an imaging method based on a concave array probe, and referring to fig. 2, fig. 2 is a flow diagram of a first embodiment of the imaging method based on the concave array probe.
In this embodiment, the imaging method based on the concave array probe includes the following steps:
step S10: acquiring an extended circle center position corresponding to the concave array probe image;
it should be noted that, the execution body of the present embodiment may be the imaging device based on the concave array probe with the functions of image processing, network communication and program running, or may be another device capable of implementing the same or similar functions, which is not particularly limited in the present embodiment.
It will be appreciated that the array probe image refers to an image acquired by the array probe, and referring to fig. 3, fig. 3 is a schematic diagram of the array probe image of the present invention. The sector COD in fig. 3 is the concave array probe image in this embodiment.
Further, in order to accurately determine the expansion center position, in this embodiment, the step S10 includes: acquiring a circle center position corresponding to a concave array element in a concave array probe image, and determining a central line of the concave array probe image according to the circle center position; and extending the central line according to a preset extension length to obtain an extension circle center position corresponding to the circle center position.
It should be noted that, the preset extension length refers to a preset extension length, and a specific value may be determined according to an actual situation, which is not specifically limited in this embodiment.
It should be understood that, in fig. 3, the circle center position corresponding to the concave array element in the concave array probe image is an O point, and the circle center position may be obtained from the control information carried by the concave array probe, and may also obtain the radius of the circular arc COD, that is, the length of OC.
In a specific implementation, the central line of the concave array probe image, namely OH in FIG. 3, can be determined according to the circle center position, and the OH is prolonged according to a preset expansion length, so that an expansion circle center position corresponding to the circle center position, namely a point Q in FIG. 3, can be obtained. If the preset expansion length is 0, the expansion circle center position is the same as the circle center position.
Step S20: expanding the concave array probe image based on the expanded circle center position to obtain an expanded concave array probe image;
it is understood that the extended concave array probe image refers to an image obtained after extension, as shown by the fan-shaped CQD in fig. 3. After the concave array probe image is expanded, the obtained expanded concave array probe image has a larger visual field range than the concave array probe image, so that breast tissues can be well detected, and the detection of fine lesions of the breast is facilitated.
Step S30: acquiring the intersection point position of a scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe;
in a specific implementation, the scan lines pass through the extended circle center positions in the extended concave array probe image, and QC, QB and QD in fig. 3 are all scan lines. The surface edge line of the concave array probe is an arc CD, and the intersection point position is C, B, D.
Step S40: and determining focusing parameters of the concave array probe according to the expansion circle center position and the intersection point position, and performing concave array imaging according to the focusing parameters.
It should be noted that, the focusing parameter refers to a parameter related to a focusing position in the extended concave array probe image, and may specifically include a distance between a central point of an array element and the focusing position, a distance between an intersection point position of a scan line and a surface edge line of the concave array probe and the focusing position, and the embodiment is not limited specifically.
It can be understood that the present embodiment can complete the beam forming process according to the focusing parameters, and further perform the concave array imaging.
In a specific implementation, referring to fig. 4, fig. 4 is a schematic structural diagram of an ultrasonic scanning device of the present invention. As shown in fig. 4, the ultrasonic scanning device includes a multi-probe interface, a relay switching circuit, a high-voltage switching circuit, a transmitting circuit, a receiving circuit, an external storage unit, an FPGA processing unit, and a main control unit. Front-end emission processing unit: the FPGA processing unit receives parameters and control information sent from the main control unit, generates an ultrasonic scanning time sequence, controls the transmitting circuit, generates corresponding ultrasonic transmitting excitation, and performs sound-electricity conversion at the probe end and transmits ultrasonic waves after passing through the high-voltage switch and the relay control circuit. The front-end receiving processing circuit: the probe receives ultrasonic waves through sound-electricity conversion, after passing through a high-voltage switch circuit, the ultrasonic waves pass through a transmitting circuit chip, are amplified on a receiving circuit, are transmitted to an FPGA processing unit after analog-digital conversion, and the FPGA performs a series of signal processing such as beam synthesis, detection and the like on converted channel digital information and then is uploaded to a main control unit for back-end signal processing, image processing and display. An external storage unit: and storing the parameters and control parameters sent by the main control unit, the image data before and after transmission to the main control unit, and the like. And a post-processing module: the FPGA processing unit comprises a part of image processing modules; and the main control unit performs back-end signal processing and image processing and display.
Further, referring to fig. 5, fig. 5 is a schematic diagram illustrating a connection relationship between an array element and a channel in the high-voltage switch circuit of the present invention. As shown in fig. 5, the number of array elements in fig. 5 is 256, the number of channels is 128, one channel corresponds to two array elements, the array elements are located inside the probe, the number of array elements in the embodiment of the invention is not limited to 256, the number of channels is not limited to 128, and the number of the channels can be set according to actual situations.
According to the embodiment, the extended circle center position corresponding to the concave array probe image is obtained, the concave array probe image is extended based on the extended circle center position, the extended concave array probe image is obtained, the intersection point position of the scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe is obtained, the focusing parameter of the concave array probe is determined according to the extended circle center position and the intersection point position, and concave array imaging is carried out according to the focusing parameter. According to the embodiment, the concave array probe is used for imaging, so that the concave array probe is in close contact with a breast, the echo signal intensity is high, an image of the concave array probe is expanded based on the position of the expanded circle center, the visual field can be widened, then the focusing parameters of the concave array probe are determined according to the position of the expanded circle center and the position of the intersection point, and the concave array imaging is performed according to the focusing parameters, so that the imaging can be accurately performed through the concave array probe.
Referring to fig. 6, fig. 6 is a schematic flow chart of a second embodiment of an imaging method based on a concave array probe according to the present invention.
Based on the first embodiment, in this embodiment, the step S40 includes:
step S401: determining a target scanning line and a target array element in the extended concave array probe image according to the extended circle center position and the intersection point position;
it can be understood that in fig. 3, the extended circle center position is Q point, the intersection point position is O point, the target scan line in the extended concave array probe image is QB, and the target array element is a.
Further, in order to accurately determine the target scan line and the target array element, in this embodiment, the step S401 includes: determining all scanning lines passing through the extended circle center position in the extended concave array probe image according to preset scanning line density, and acquiring intersection points of all the scanning lines and surface edge lines of a concave array probe; sequencing the intersection points to obtain sequenced intersection points; determining all the array elements in the extended concave array probe image according to the number of preset array elements, and sequencing the array elements to obtain sequenced array elements; and determining a target scanning line and a target array element in the extended concave array probe image according to the ordered intersection points and the ordered array elements.
It should be noted that, the preset scan line density refers to a preset scan line density, and the preset number of array elements is the preset number of array elements, which can be specifically set according to the actual situation, and the embodiment is not limited in this way.
It can be understood that after the preset scan line density is obtained, the number of scan lines can be determined, and then the scan lines and the positions of all scan lines can be obtained by evenly distributing the scan lines in the extended concave array probe image according to the number of scan lines.
In a specific implementation, there are intersections between each scan line and a surface edge line of the concave array probe, and in this embodiment, the intersections are sequentially ordered from left to right, for example, B1, B2, and B3. In this embodiment, the array elements are ordered sequentially from left to right, for example, A1, A2, a3. The target scan line and the target array element in the extended concave array probe image can be determined according to the ordered intersection points and the ordered array elements, wherein the target scan line in fig. 3 is QB, and the target array element is a.
Step S402: acquiring a focusing position corresponding to the target scanning line, and determining focusing parameters corresponding to the concave array probe according to the central position of the target array element and the focusing position;
it can be understood that the focusing position is on the target scan line, specifically, the number of the working clocks can be quantized in the FPGA processing unit, and then the scan depth can be obtained point by point. The focus position in fig. 3 is point F. The center position of the target array element is the center point of A.
Step S403: and performing concave array imaging according to the focusing parameters.
According to the embodiment, the target scanning line and the target array element in the extended concave array probe image are determined according to the extended circle center position and the intersection point position, then the focusing position corresponding to the target scanning line is obtained, the focusing parameter corresponding to the concave array probe is determined according to the central position and the focusing position of the target array element, and then concave array imaging is carried out according to the focusing parameter. According to the embodiment, the focusing parameters corresponding to the concave array probe are determined according to the central position and the focusing position of the target array element, so that the focusing parameters can be accurately determined, and then concave array imaging is performed according to the focusing parameters, so that imaging can be accurately performed through the concave array probe.
Referring to fig. 7, fig. 7 is a schematic flow chart of a third embodiment of an imaging method based on a concave array probe according to the present invention.
Based on the above embodiments, in this embodiment, the step S402 includes:
step S4021: acquiring a focusing position corresponding to the target scanning line and an intersection point position corresponding to the target scanning line;
it can be understood that in fig. 3, the focus position corresponding to the target scan line is point F, and the intersection position corresponding to the target scan line is point B.
Step S4022: determining a first distance according to the central position of the target array element and the intersection point position;
further, in order to accurately determine the first distance, in this embodiment, the step S4022 includes: determining the radius of the concave array probe image according to the central position of the target array element; constructing a first connecting line based on an array element point corresponding to the central position of the target array element and a circle center corresponding to the circle center position; constructing a second connecting line based on the intersection point corresponding to the intersection point position and the circle center; acquiring a first included angle between the first connecting line and the second connecting line; and determining a first distance according to the radius and the first included angle.
It should be noted that, assuming that the radius of the concave array probe image is r, the ratio cod=θtotal, the ratio cqd=λ total, the ratio odq=hod-ratio hqd=θtotal/2- λ total/2. The first connecting line is OA, the second connecting line is OB, a first included angle between the first connecting line and the second connecting line is AOB, and the first distance is AF length.
It will be appreciated that in fig. 3, the scan line is to the left of the center line HQ and the array element a is to the left of the scan line. Further, referring to fig. 8, fig. 8 is another schematic diagram of an image of a concave array probe according to the present invention. In fig. 8, the scan line is located to the left of the center line HQ, and the array element a is located to the right of the scan line. Further, referring to fig. 9, fig. 9 is another schematic diagram of an image of a concave array probe according to the present invention. In fig. 9, the scan line is located to the right of the center line HQ, and the array element a is located to the left of the scan line. Further, referring to fig. 10, fig. 10 is another schematic diagram of an image of a concave array probe according to the present invention. In fig. 10, the scan line is located to the right of the center line HQ, and the array element a is located to the right of the scan line.
It should be appreciated that in a BQO, the sine theorem,then-> Wherein lambda is n Is-> Where n=0 to N-1, N is the total number of scan lines, and N is the number of scan lines, and can be obtained according to the serial numbers of the ordered scan lines. In Δabo, the angle aob= |b-coa|. But->Wherein the COA is theta m Assuming that m=256, θ Total (S) And m=0-255 for the total angle of the concave array probe.
In fig. 3 and 8, ++cob= ++qob- ++qoc; wherein, the liquid crystal display device comprises a liquid crystal display device,thenAnd (2) the angle QOB is an obtuse angle. In fig. 9 and 10, < COB = < COD- < BOD = < COD- (< QOB- < QOD), wherein + +.>∠COD＝θ Total (S) ThenThe angle QOB is an obtuse angle,
combining fig. 3, 8, 9 and 10, parameters k, n, m are set, where n refers to the nth scan line, n e [0, n_LINETOTAL-1)]N_LINETOTAL refers to the number of buses under the current linear density and is an even number; m refers to the index of the current array element, m is E [0, M-1]In this embodiment, assuming that the number of array elements of the concave array probe is 256, m=256; thenThen-> While So the +.COB is a two-dimensional array that can be extended from (n, 1) to (n, m), where the m numbers of the current row are all the same. Therefore, it is Wherein->θ m Is the included angle between the connecting line of the m-th array element and the circle center and the leftmost line.
Specifically, a two-dimensional array of parameters x (N, m) is set, and when N < N_LINETOTAL/2, the scan line is to the left of the center line HQ, ifθ m Not less than COB, array elements on the left side of the central line HQ, x (n, m) =1; otherwise x (n, m) = -1. When N is greater than or equal to N_LINETOTAL/2, the scan line is to the right of the center line HQ, if θ m Not less than COB, the array element is at the left side of the central line HQ, x (n, m) = -1; otherwise x (n, m) =1.
In the case of the Δabo, but->
To sum up: in the case of the Δabf,
wherein:
DF (k) in order to quantify the distance from the focusing position to the probe, the number of the working clocks is quantized in the FPGA processing unit, so that the scanning depth point-by-point focusing calculation can be performed.
Step S4023: determining a second distance from the intersection point position and the focus position;
the second distance is the length of AB.
Step S4024: and determining focusing parameters corresponding to the concave array probe according to the first distance and the second distance.
Further, in order to accurately determine the focusing parameter, in this embodiment, the step S4024 includes: determining auxiliary parameters according to a working clock of the FPGA processing unit and the ultrasonic sound velocity; determining the first parameter according to the first distance and the auxiliary parameter; constructing a third connecting line based on the array element point and the intersection point, and constructing a fourth connecting line based on the intersection point and a focusing point corresponding to the focusing position; acquiring a second included angle between the third connecting line and the fourth connecting line; and determining the second parameter according to the second distance, the auxiliary parameter and the second included angle.
It should be noted that the third connecting line is AB, the fourth connecting line is BF, and the second included angle is ABF. Auxiliary parameter is DF (k) . f is the working clock of the FPGA processing unit, c is the actual ultrasonic sound velocity, is generally 1540m/s, and is determined according to the specific biological tissue.
WhileWherein the method comprises the steps of θ m Is the included angle between the connecting line of the m-th array element and the circle center and the leftmost line. />Wherein n=0 to N-1, λ n Is the included angle between the nth scanning line and the leftmost line of the concave array image. Let N_LINETOTAL refer to the number of buses at the current line density as an even number. Then-> Setting up a two-dimensional array of parameters x (N, m), when N < N_LINETOTAL/2, the scan line is left of the center line HQ, if θ m Not less than COB, array elements on the left side of the central line HQ, x (n, m) =1; otherwise x (n, m) = -1. When N is greater than or equal to N_LINETOTAL/2, the scan line is to the right of the center line HQ, if θ m Not less than COB, the array element is at the left side of the central line HQ, x (n, m) = -1; otherwise x (n, m) =1.
In a specific implementation, the first parameter in this embodiment is FL (n,m) The second parameter is FA (n,m) . The corresponding FL is calculated by the master control unit according to the algorithm (n,m) And FA (n,m) And extracting corresponding parameters and issuing the parameters to an FPGA processing unit, wherein the parameters are stored in an external storage unit such as a DDR4 chip set in the FPGA processing unit. When ultrasonic scanning is performed, the focusing parameters are prepared before transmission, digital echo data are cached in an internal dual-port RAM module in a beam synthesis module, the reading addresses corresponding to the echo data at the same moment in each dual-port RAM can be obtained through the focusing parameters and the algorithm, then receiving apodization and weighting superposition of receiving apertures are performed, focused radio-frequency echo data can be obtained, and beam synthesis processing is completed, so that concave array imaging can be performed.
According to the embodiment, the focusing position corresponding to the target scanning line and the intersection point position corresponding to the target scanning line are obtained, then the first distance is determined according to the central position and the intersection point position of the target array element, then the second distance is determined according to the intersection point position and the focusing position, and then the focusing parameter corresponding to the concave array probe is determined according to the first distance and the second distance. According to the method, the first distance is determined according to the center position and the intersection point position of the target array element, the second distance is determined according to the intersection point position and the focusing position, and the focusing parameters corresponding to the concave array probe are determined according to the first distance and the second distance, so that the corresponding focusing parameters can be accurately calculated according to delta ABO, and imaging can be accurately performed through the concave array probe.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium is stored with an imaging program based on the concave array probe, and the imaging program based on the concave array probe realizes the imaging method based on the concave array probe when being executed by a processor.
Referring to fig. 11, fig. 11 is a block diagram showing the structure of a first embodiment of the concave array probe-based imaging device of the present invention.
As shown in fig. 11, an imaging device based on a concave array probe according to an embodiment of the present invention includes:
the position acquisition module 10 is used for acquiring an extended circle center position corresponding to the concave array probe image;
the image expansion module 20 is used for expanding the concave array probe image based on the expansion circle center position to obtain an expanded concave array probe image;
the position acquisition module 10 is further configured to acquire an intersection point position of a scan line passing through the extended circle center position in the extended concave array probe image and a surface edge line of the concave array probe;
and the concave array imaging module 30 is used for determining focusing parameters of the concave array probe according to the expanding circle center position and the intersection point position and carrying out concave array imaging according to the focusing parameters.
According to the embodiment, the extended circle center position corresponding to the concave array probe image is obtained, the concave array probe image is extended based on the extended circle center position, the extended concave array probe image is obtained, the intersection point position of the scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe is obtained, the focusing parameter of the concave array probe is determined according to the extended circle center position and the intersection point position, and concave array imaging is carried out according to the focusing parameter. According to the embodiment, the concave array probe is used for imaging, so that the concave array probe is in close contact with a breast, the echo signal intensity is high, an image of the concave array probe is expanded based on the position of the expanded circle center, the visual field can be widened, then the focusing parameters of the concave array probe are determined according to the position of the expanded circle center and the position of the intersection point, and the concave array imaging is performed according to the focusing parameters, so that the imaging can be accurately performed through the concave array probe.
Based on the first embodiment of the imaging device based on the concave array probe, a second embodiment of the imaging device based on the concave array probe is provided.
In this embodiment, the position obtaining module 10 is further configured to obtain a center position corresponding to a concave array element in a concave array probe image, and determine a center line of the concave array probe image according to the center position; and extending the central line according to a preset extension length to obtain an extension circle center position corresponding to the circle center position.
Further, the concave array imaging module 30 is further configured to determine a target scan line and a target array element in the extended concave array probe image according to the extended circle center position and the intersection point position; acquiring a focusing position corresponding to the target scanning line, and determining focusing parameters corresponding to the concave array probe according to the central position of the target array element and the focusing position; and performing concave array imaging according to the focusing parameters.
Further, the concave array imaging module 30 is further configured to determine, according to a preset scan line density, all scan lines passing through the extended circle center position in the extended concave array probe image, and obtain intersections of the scan lines and surface edge lines of the concave array probe; sequencing the intersection points to obtain sequenced intersection points; determining all the array elements in the extended concave array probe image according to the number of preset array elements, and sequencing the array elements to obtain sequenced array elements; and determining a target scanning line and a target array element in the extended concave array probe image according to the ordered intersection points and the ordered array elements.
Further, the concave array imaging module 30 is further configured to obtain a focusing position corresponding to the target scan line and an intersection position corresponding to the target scan line; determining a first distance according to the central position of the target array element and the intersection point position; determining a second distance from the intersection point position and the focus position; and determining focusing parameters corresponding to the concave array probe according to the first distance and the second distance.
Further, the concave array imaging module 30 is further configured to determine a radius of the concave array probe image according to the center position of the target array element; constructing a first connecting line based on an array element point corresponding to the central position of the target array element and a circle center corresponding to the circle center position; constructing a second connecting line based on the intersection point corresponding to the intersection point position and the circle center; acquiring a first included angle between the first connecting line and the second connecting line; and determining a first distance according to the radius and the first included angle.
Further, the concave array imaging module 30 is further configured to determine an auxiliary parameter according to an operating clock and an ultrasonic sound velocity of the FPGA processing unit; determining the first parameter according to the first distance and the auxiliary parameter; constructing a third connecting line based on the array element point and the intersection point, and constructing a fourth connecting line based on the intersection point and a focusing point corresponding to the focusing position; acquiring a second included angle between the third connecting line and the fourth connecting line; and determining the second parameter according to the second distance, the auxiliary parameter and the second included angle.
Other embodiments or specific implementation manners of the imaging device based on the concave array probe of the present invention may refer to the above method embodiments, and will not be described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. read-only memory/random-access memory, magnetic disk, optical disk), comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (8)
1. An imaging method based on a concave array probe is characterized by comprising the following steps:
acquiring an extended circle center position corresponding to the concave array probe image;
expanding the concave array probe image based on the expanded circle center position to obtain an expanded concave array probe image;
acquiring the intersection point position of a scanning line passing through the extended circle center position in the extended concave array probe image and the surface edge line of the concave array probe;
determining focusing parameters of the concave array probe according to the extended circle center position and the intersection point position, and performing concave array imaging according to the focusing parameters, wherein the focusing parameters comprise parameters related to focusing positions;
the step of determining the focusing parameter of the concave array probe according to the expanding circle center position and the intersection point position and performing concave array imaging according to the focusing parameter specifically comprises the following steps:
determining a target scanning line and a target array element in the extended concave array probe image according to the extended circle center position and the intersection point position;
acquiring a focusing position corresponding to the target scanning line, and determining focusing parameters corresponding to the concave array probe according to the central position of the target array element and the focusing position;
performing concave array imaging according to the focusing parameters;
the step of acquiring the focusing position corresponding to the target scanning line and determining the focusing parameter corresponding to the concave array probe according to the central position of the target array element and the focusing position specifically comprises the following steps:
acquiring a focusing position corresponding to the target scanning line and an intersection point position corresponding to the target scanning line;
determining a first distance according to the central position of the target array element and the intersection point position;
determining a second distance from the intersection point position and the focus position;
and determining focusing parameters corresponding to the concave array probe according to the first distance and the second distance.
2. The method for imaging a concave array probe according to claim 1, wherein the step of acquiring the extended circle center position corresponding to the image of the concave array probe specifically comprises:
acquiring a circle center position corresponding to a concave array element in a concave array probe image, and determining a central line of the concave array probe image according to the circle center position;
and extending the central line according to a preset extension length to obtain an extension circle center position corresponding to the circle center position.
3. The method of claim 1, wherein the step of determining the target scan line and the target array element in the extended concave array probe image according to the extended circle center position and the intersection point position specifically comprises:
determining all scanning lines passing through the extended circle center position in the extended concave array probe image according to preset scanning line density, and acquiring intersection points of all the scanning lines and surface edge lines of a concave array probe;
sequencing the intersection points to obtain sequenced intersection points;
determining all the array elements in the extended concave array probe image according to the number of preset array elements, and sequencing the array elements to obtain sequenced array elements;
and determining a target scanning line and a target array element in the extended concave array probe image according to the ordered intersection points and the ordered array elements.
4. The method of concave array probe-based imaging of claim 1, wherein said step of determining a first distance from a center position of said target array element and said intersection position comprises:
determining the radius of the concave array probe image according to the central position of the target array element;
constructing a first connecting line based on an array element point corresponding to the central position of the target array element and a circle center corresponding to the circle center position;
constructing a second connecting line based on the intersection point corresponding to the intersection point position and the circle center;
acquiring a first included angle between the first connecting line and the second connecting line;
and determining a first distance according to the radius and the first included angle.
5. The concave array probe-based imaging method of claim 1, wherein said focusing parameters include: a first parameter and a second parameter;
the step of determining the focusing parameter corresponding to the concave array probe according to the first distance and the second distance specifically includes:
determining auxiliary parameters according to a working clock of the FPGA processing unit and the ultrasonic sound velocity;
determining the first parameter according to the first distance and the auxiliary parameter;
constructing a third connecting line based on the array element point and the intersection point, and constructing a fourth connecting line based on the intersection point and a focusing point corresponding to the focusing position;
acquiring a second included angle between the third connecting line and the fourth connecting line;
and determining the second parameter according to the second distance, the auxiliary parameter and the second included angle.
6. An imaging device based on a concave array probe, characterized in that the imaging device based on the concave array probe comprises:
the position acquisition module is used for acquiring the extended circle center position corresponding to the concave array probe image;
the image expansion module is used for expanding the concave array probe image based on the expansion circle center position to obtain an expanded concave array probe image;
the position acquisition module is also used for acquiring the intersection point position of the scanning line passing through the extended circle center position and the surface edge line of the concave array probe in the extended concave array probe image;
the concave array imaging module is used for determining focusing parameters of a concave array probe according to the expansion circle center position and the intersection point position, and carrying out concave array imaging according to the focusing parameters, wherein the focusing parameters comprise parameters related to focusing positions;
the concave array imaging module is also used for determining a target scanning line and a target array element in the extended concave array probe image according to the extended circle center position and the intersection point position; acquiring a focusing position corresponding to the target scanning line, and determining focusing parameters corresponding to the concave array probe according to the central position of the target array element and the focusing position; performing concave array imaging according to the focusing parameters;
the concave array imaging module is also used for acquiring a focusing position corresponding to the target scanning line and an intersection point position corresponding to the target scanning line; determining a first distance according to the central position of the target array element and the intersection point position; determining a second distance from the intersection point position and the focus position; and determining focusing parameters corresponding to the concave array probe according to the first distance and the second distance.
7. An imaging device based on a concave array probe, characterized in that the imaging device based on a concave array probe comprises: a memory, a processor, and a concave array probe-based imaging program stored on the memory and executable on the processor, the concave array probe-based imaging program configured to implement the concave array probe-based imaging method of any of claims 1 to 5.
8. A storage medium having stored thereon a concave-array probe-based imaging program which, when executed by a processor, implements the concave-array probe-based imaging method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111585737.0A CN114271851B (en) | 2021-12-22 | 2021-12-22 | Imaging method, device, equipment and storage medium based on concave array probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111585737.0A CN114271851B (en) | 2021-12-22 | 2021-12-22 | Imaging method, device, equipment and storage medium based on concave array probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114271851A CN114271851A (en) | 2022-04-05 |
| CN114271851B true CN114271851B (en) | 2023-08-29 |
Family
ID=80874135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111585737.0A Active CN114271851B (en) | 2021-12-22 | 2021-12-22 | Imaging method, device, equipment and storage medium based on concave array probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114271851B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858972A (en) * | 2010-03-23 | 2010-10-13 | 深圳市蓝韵实业有限公司 | Multi-beam synthesis method and device based on delay parameter real-time calculation and assembly line |
| CN104739443A (en) * | 2013-12-30 | 2015-07-01 | 深圳迈瑞生物医疗电子股份有限公司 | Medical external ultrasonic probe and ultrasonic diasonograph |
| CN106063710A (en) * | 2016-05-25 | 2016-11-02 | 深圳开立生物医疗科技股份有限公司 | A kind of ultrasonic imaging method, system and device |
| CN112401932A (en) * | 2020-12-08 | 2021-02-26 | 深圳开立生物医疗科技股份有限公司 | Ultrasonic extended space compound imaging method and related device |
| WO2021237125A1 (en) * | 2020-05-22 | 2021-11-25 | Deepsight Technology, Inc. | Mixed ultrasound transducer arrays |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101396282B (en) * | 2007-09-29 | 2013-03-27 | 深圳迈瑞生物医疗电子股份有限公司 | Arc wide-beam transmission method and device for ultrasonic image-forming |
| FR2997619B1 (en) * | 2012-11-08 | 2015-04-10 | Light N | PROBE AND ULTRASONIC DEVICE FOR 3D IMAGING OF THE JAW |
| JP6452110B2 (en) * | 2015-02-06 | 2019-01-16 | キヤノン株式会社 | Hand-held probe |
-
2021
- 2021-12-22 CN CN202111585737.0A patent/CN114271851B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858972A (en) * | 2010-03-23 | 2010-10-13 | 深圳市蓝韵实业有限公司 | Multi-beam synthesis method and device based on delay parameter real-time calculation and assembly line |
| CN104739443A (en) * | 2013-12-30 | 2015-07-01 | 深圳迈瑞生物医疗电子股份有限公司 | Medical external ultrasonic probe and ultrasonic diasonograph |
| CN106063710A (en) * | 2016-05-25 | 2016-11-02 | 深圳开立生物医疗科技股份有限公司 | A kind of ultrasonic imaging method, system and device |
| WO2017202362A1 (en) * | 2016-05-25 | 2017-11-30 | 深圳开立生物医疗科技股份有限公司 | Ultrasonic imaging method, system, and device |
| WO2021237125A1 (en) * | 2020-05-22 | 2021-11-25 | Deepsight Technology, Inc. | Mixed ultrasound transducer arrays |
| CN112401932A (en) * | 2020-12-08 | 2021-02-26 | 深圳开立生物医疗科技股份有限公司 | Ultrasonic extended space compound imaging method and related device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114271851A (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6373970B1 (en) | Image registration using fourier phase matching | |
| CN101683274B (en) | Deflection convex array digital scanning conversion and convex array space compound method and imaging system | |
| CN108846829B (en) | Lesion site recognition device, computer device, and readable storage medium | |
| CN106580366A (en) | Wireless probe, ultrasonic imaging apparatus, and method for controlling the same | |
| US20060079780A1 (en) | Ultrasonic imaging apparatus | |
| CN114624689B (en) | Near-field focusing sound source distance calculation method and system based on acoustic imaging instrument | |
| US20200397409A1 (en) | Ultrasound diagnostic apparatus and control method of ultrasound diagnostic apparatus | |
| CN107802286B (en) | Ultrasonic imaging method and system based on multi-frequency time reversal technology | |
| JP7295296B2 (en) | ULTRASOUND DIAGNOSTIC SYSTEM AND CONTROL METHOD OF ULTRASOUND DIAGNOSTIC SYSTEM | |
| CN114271851B (en) | Imaging method, device, equipment and storage medium based on concave array probe | |
| JP3374684B2 (en) | Ultrasound diagnostic equipment | |
| Hoeks et al. | Methods to evaluate the sample volume of pulsed Doppler systems | |
| CN102266235B (en) | Ultrasonograph, ultrasonic probe, and ultrasonic wave transmitting/receiving program | |
| CN108061760A (en) | Ultrasonic rapid super-resolution imaging method and device, storage medium and imaging system | |
| CN109142548A (en) | A kind of ultrasonic imaging method based on phase annular Statistical Vector | |
| Nikolov et al. | Analysis and optimization of synthetic aperture ultrasound imaging using the effective aperture approach | |
| US20200359989A1 (en) | Ultrasound diagnostic apparatus and control method of ultrasound diagnostic apparatus | |
| RU2179730C1 (en) | Direction finder of sonar navigation system with ultrashort base | |
| US20170032557A1 (en) | Ultrasound Focal Zone System and Method | |
| CN108303699B (en) | Ultrasonic phased array far-field super-resolution imaging method, device, storage medium and system | |
| CN112370073A (en) | Ultrasonic sound velocity correction method, ultrasonic signal processing apparatus, and storage medium | |
| KR20050058204A (en) | Ultrasonic diagnostic apparatus and driving method therefor | |
| Guenther et al. | Generalized cystic resolution: a metric for assessing the fundamental limits on beamformer performance | |
| US20240104800A1 (en) | Ultrasound imaging method and ultrasound imaging apparatus | |
| CN116421223A (en) | Ultrasonic image measuring method and ultrasonic measuring system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |