CN109512457B - Method, device and equipment for adjusting gain compensation of ultrasonic image and storage medium - Google Patents
Method, device and equipment for adjusting gain compensation of ultrasonic image and storage medium Download PDFInfo
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- CN109512457B CN109512457B CN201811198975.4A CN201811198975A CN109512457B CN 109512457 B CN109512457 B CN 109512457B CN 201811198975 A CN201811198975 A CN 201811198975A CN 109512457 B CN109512457 B CN 109512457B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/467—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means
- A61B8/469—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means for selection of a region of interest
Abstract
The application provides a method for adjusting gain compensation of an ultrasonic image, which comprises the following steps: displaying an ultrasonic image to be adjusted; detecting an adjusting touch signal applied on the ultrasonic image by a user, and determining an interested area on the ultrasonic image according to the adjusting touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image. The method and the device aim at realizing simultaneous adjustment of the TGC and the LGC, so that the operation of a doctor is simplified, the efficiency of adjusting gain compensation of the ultrasonic image is improved, the specification of the ultrasonic detector is reduced, and the manufacturing cost and the subsequent maintenance cost are saved.
Description
Technical Field
The present application relates to the field of ultrasound detection technologies, and in particular, to a method, an apparatus, a device, and a storage medium for adjusting gain compensation of an ultrasound image.
Background
The medical ultrasonic detection technology is widely applied to modern medical diagnosis and treatment. On a traditional ultrasonic detector, a doctor needs to manually adjust an entity key to respectively adjust Time Gain Compensation (TGC) and Lateral Gain Compensation (LGC) so that the overall brightness of an ultrasonic image reaches balance, wherein the TGC represents a Gain value corresponding to each detection depth, and the LGC represents a Gain value corresponding to each array element channel. However, the above conventional technique in which TGC and LGC are independently adjusted increases the number of operating steps for the doctor, and greatly reduces the adjustment efficiency of gain compensation for the ultrasound image.
Disclosure of Invention
In view of this, the embodiments of the present application provide a method, an apparatus, a device, and a storage medium for adjusting gain compensation of an ultrasound image.
According to a first aspect of the present application, there is provided a method of adjusting gain compensation of an ultrasound image, the method comprising:
displaying an ultrasonic image to be adjusted;
detecting an adjusting touch signal applied on the ultrasonic image by a user, and determining an interested area on the ultrasonic image according to the adjusting touch signal;
determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal;
and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image.
In some examples, prior to the detecting an adjustment touch signal applied by a user on the ultrasound image, the method further comprises:
and entering a gain compensation mode according to a selection instruction of a user.
In some examples, the conditioning the touch signal includes: a first conditioned touch signal and a second conditioned touch signal;
determining a region of interest on the ultrasonic image according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal, including:
determining a region of interest on the ultrasound image according to the first adjustment touch signal;
and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the second adjustment touch signal.
In some examples, the determining the region of interest on the ultrasound image based on the first adjusted touch signal includes:
when the conditioning touch signal is a two-finger touch gesture signal,
determining the positions of two fingers when the two-finger touch gesture contacts the ultrasonic image for the first time;
and determining a target array element channel and a target detection depth corresponding to the midpoint position of the connecting line between the two finger positions as the region of interest.
In some examples, the determining the temporal gain compensation and the lateral gain compensation corresponding to the region of interest based on the second adjusted touch signal includes:
determining a first gain compensation coefficient according to the projection component of the distance between the two fingers in the depth direction of detection;
determining a second gain compensation coefficient according to the component of the two-finger distance projected in the direction of the array element channel;
and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal.
In some examples, the calculation formula for determining the time gain compensation and the lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjusted touch signal is as follows:
wherein, G (x, y) is time gain compensation and lateral gain compensation corresponding to the region of interest;
x is an array element channel;
y is the probe depth;
x0and y0Respectively obtaining a target array element channel and a target detection depth corresponding to the middle point of the two fingers according to the position signals of the two fingers;
alpha is a second gain compensation coefficient;
beta is a first gain compensation coefficient;
gamma and mu are default gain compensation coefficients of each array element channel;
a is the gain intensity obtained according to the sliding direction and the distance signal of the two fingers;
b is the preset initial gain intensity of each array element channel;
c is the global bias component.
In some examples, if no conditioning touch signal is detected, a is 0.
In some examples, after detecting the adjustment touch signal applied by the user on the ultrasound image, the method further comprises: and displaying the adjusted ultrasonic image in real time.
In some examples, before determining the time gain compensation and the lateral gain compensation corresponding to the region of interest according to the adjusted touch signal, the method further includes:
and presetting gain threshold values of the time gain compensation and the lateral gain compensation.
According to a second aspect of the present application, there is provided an ultrasonic testing apparatus comprising: the memory, the processor and the display are connected through an internal bus;
wherein the memory is used for storing machine readable instructions corresponding to the processing logic for adjusting the gain compensation of the ultrasonic image;
the display is used for displaying the ultrasonic image to be adjusted;
the processor is used for detecting an adjusting touch signal applied on the ultrasonic image by a user and determining an interested area on the ultrasonic image according to the adjusting touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and enabling a display to display the adjusted ultrasonic image.
According to a third aspect of the present application, an apparatus for adjusting gain compensation of an ultrasound image, the apparatus comprising:
the display module is used for displaying the ultrasonic image to be adjusted;
the processing module is used for detecting an adjusting touch signal applied on the ultrasonic image by a user and determining an interested area on the ultrasonic image according to the adjusting touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image.
According to a fourth aspect of the present application, there is provided a machine-readable storage medium having stored thereon computer instructions which, when executed, perform the operations of any of the methods of the first aspect.
According to the method for adjusting the gain compensation of the ultrasonic image, the simultaneous adjustment of the TGC and the LGC is realized through the adjusting touch signal applied to the ultrasonic image by the user, so that the operation of a doctor can be simplified, and the efficiency of adjusting the gain compensation of the ultrasonic image is improved; in addition, the region of interest corresponding to the ultrasonic image is directly adjusted through the touch gesture signal, and compared with a traditional ultrasonic detector with solid keys, the specification of the ultrasonic detector can be reduced, and the manufacturing cost and the subsequent maintenance cost are saved.
Drawings
FIG. 1 is a schematic diagram illustrating an exemplary prior art adjustment of TGC;
FIG. 2 is a schematic diagram of an exemplary prior art LGC alignment;
FIG. 3 is a flow chart of a method of adjusting gain compensation in an ultrasound image as exemplary illustrated herein;
FIG. 4a is a schematic diagram of a method of adjusting gain compensation in an ultrasound image according to an exemplary embodiment of the present application;
fig. 4b is a schematic diagram illustrating a corresponding relationship curve between gain values of pixels of an ultrasound image and array element channels and detection depths according to an example of the present application;
FIG. 5 is a schematic interface diagram of an ultrasonic inspection apparatus according to an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a method of adjusting gain compensation in an ultrasound image according to an exemplary embodiment of the present application;
FIG. 7 is a block diagram of an apparatus for adjusting gain compensation of an ultrasound image according to an exemplary embodiment of the present disclosure;
FIG. 8 is a block diagram of another apparatus for adjusting gain compensation of an ultrasound image according to an exemplary embodiment of the present disclosure;
fig. 9 is a logic block diagram of an ultrasonic detector schematically illustrated in an embodiment of the present application.
Detailed Description
The present application will now be described in detail with reference to specific embodiments thereof as illustrated in the accompanying drawings. These embodiments are not intended to limit the present application, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present application.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Time Gain Control (TGC) is a compensation of the ultrasonic detector in the depth direction (sound wave propagation direction). In the process of sound wave propagation, the intensity of the sound wave is attenuated along with time (distance), the received echo has the phenomenon of strong near field and weak far field, and in order to make the intensities of the echoes in the near field and the far field consistent, gain compensation needs to be manually carried out according to time, so that the brightness of the ultrasonic image in the depth direction is balanced.
Lateral Gain Compensation (LGC) is the compensation of an ultrasonic detector in the wafer direction (array element channel). When the sound beam is in the center of the probe of the ultrasonic detector, the number of wafers participating in contribution is the largest, and the echo of the sound beam is the strongest; when the sound beam moves to the two sides of the probe, the contributing wafers are gradually reduced, and the echo of the sound beam is weakened. In the conventional technology, gain compensation is required according to an array element channel, so that the brightness of an ultrasonic image in the direction of the array element channel is balanced.
With reference to fig. 1 and 2, in the conventional technique, when a doctor performs gain compensation on a certain region of interest, after entering a TGC adjustment mode through a physical button, referring to fig. 1, an ultrasound image 110 is displayed on a display screen of an ultrasound detector, and the doctor can perform TGC adjustment through an entity operation area 120 on an entity operation interface. Generally, the entity operating area 120 includes a plurality of entity sliders 121 capable of sliding left and right, each entity slider 121 corresponds to a detection depth, and a doctor can slide the entity slider 121 for a certain detection depth 111 to adjust the overall brightness at the detection depth 111. After the doctor enters the LGC adjusting mode through the physical button, referring to fig. 2, an ultrasound image 210 is displayed on the display screen of the ultrasound detector, and the doctor can adjust the LGC through a real operation area 220 on the physical operation interface. The operation area 220 includes a plurality of entity sliders 221 capable of sliding left and right, each entity slider 221 corresponds to one array element channel, and a doctor can slide the entity slider 221 for a certain array element channel 211 to adjust the overall brightness of the array element channel 211. The traditional mode of adjusting TGC and LGC by the ultrasonic detector to perform gain compensation has the following technical problems:
1. the solid slider is used, so that the specification and the manufacturing cost of the ultrasonic detector are increased, and the subsequent maintenance cost is increased.
2. Adjusting TGC and LGC separately for gain compensation increases the physician's operation, for example: in order to enable the ultrasonic image to achieve the best display effect, the doctor repeatedly switches and adjusts the TGC adjusting mode and the LGC adjusting mode.
In order to solve the technical problem, the application provides a method, a device, a medium and an ultrasonic detector for adjusting gain compensation of an ultrasonic image. Referring to fig. 3, a flow chart of a method for adjusting gain compensation of an ultrasound image according to an embodiment of the present application is schematically shown, and the method includes the steps of:
s310: displaying an ultrasonic image to be adjusted;
s320: detecting an adjusting touch signal applied on the ultrasonic image by a user, and determining an interested area on the ultrasonic image according to the adjusting touch signal;
s330: determining TGC and LGC corresponding to the region of interest according to the adjusting touch signal;
s340: and performing display adjustment on the region of interest according to the TGC and the LGC, and displaying the adjusted ultrasonic image.
It should be noted that the method described in fig. 3 may be performed by a functional module on the ultrasonic testing apparatus. The ultrasonic detector can be a medical ultrasonic detector, a B-type ultrasonic detector, a portable ultrasonic detector and the like, and the type of the ultrasonic detector is not limited in the application.
Specifically, in an example, referring to fig. 4a, according to an operation of a user (for example, the user clicks a control corresponding to a gain compensation mode on a control interface), after the ultrasonic detector enters the "gain compensation" mode, an ultrasonic image 410 to be adjusted is displayed on an interface 400 of a display of the ultrasonic detector, and the ultrasonic detector records a corresponding relationship between each detection depth and each array element channel and a gain value on the ultrasonic image at the time (that is, records an initial TGC and an initial LGC); the ultrasonic detector detects an adjustment touch signal applied by a user on the ultrasonic image, and when the adjustment touch signal applied by the user is detected, first, an area of interest, for example, the area of interest 411 shown in fig. 4a, is determined, where the area of interest corresponds to a detection depth and an array element channel in the ultrasonic image. Of course, in some examples, the region of interest may be a point on the ultrasound image that corresponds to the target probe depth and the target array element channel. And then, the ultrasonic detector adjusts the array element channel corresponding to the region of interest and the corresponding relation between the detection depth and the gain value according to the adjustment touch signal, determines the TGC and the LGC corresponding to each point of the region of interest, adjusts the brightness of the region of interest of the ultrasonic image according to the TGC and the LGC corresponding to each point of the region of interest, and displays the adjusted ultrasonic image. It should be noted that, in some examples, the correspondence between the gain value of each pixel in the ultrasound image and each array element channel and each detection depth may be represented by a three-dimensional curve, and the three-dimensional curve may represent TGC and LGC at the same time, for example, referring to fig. 4b, the three-dimensional curve 420 represents LGC by using the array element channel as an x-axis 421 and the detection depth as a y-axis 422, and by using the gain value of each detection depth and array element channel as a z-axis 423; the correspondence of y to z characterizes TGC, and the three-dimensional curve 420 characterizes both TGC and LGC.
The method for adjusting the ultrasonic image gain compensation, which is provided by the application figure 3, realizes the simultaneous adjustment of the TGC and the LGC, can simplify the operation of a doctor and improve the efficiency of adjusting the ultrasonic image gain compensation; and this application directly adjusts the region of interest that the ultrasonic image corresponds through touch gesture signal, compares in the ultrasonic detector of traditional entity key, can reduce ultrasonic detector's specification to and save manufacturing cost and follow-up maintenance cost, for example ultrasonic image gain compensation need upgrade, this application directly can to software upgrade, and traditional technology probably will change the control panel of whole entity, or change whole ultrasonic detector.
In some examples, when the ultrasound image to be adjusted is displayed in step S310, the corresponding relationship between the gain value of the ultrasound image and each array element channel and each detection depth may also be displayed, for example, referring to fig. 5, a region 510 displays the ultrasound image, and a region 520 displays the real-time corresponding relationship between the gain value of each pixel point of the ultrasound image and each array element channel and each detection depth. It should be noted that the ultrasonic image display parameters (such as brightness) in the area 510 are changed in real time along with the "adjustment touch signal", and the corresponding relationship in the area 510 is also changed in real time along with the "adjustment touch signal". It is understood that when only the ultrasound image is displayed, the display parameters (such as brightness) of the ultrasound image are changed in real time along with the "adjustment touch signal", so that the user can observe the difference of the display effect of each trigger of the "adjustment touch signal" on the ultrasound image in real time to determine the best display effect.
The "adjusting touch signal" provided by the embodiment of the application can be triggered by any one of the following touch gestures: single-finger touch gestures, double-finger touch gestures, multi-finger touch gestures, and the like. The application does not limit the type of touch gestures.
In some examples, the adjustment touch signal proposed by the embodiment of the present application includes a first adjustment touch signal and a second adjustment touch signal, for example, when a finger touches a region where an ultrasound image is displayed, the first adjustment touch signal is triggered, and then when the finger slides on the screen, the second adjustment touch signal is triggered. In a specific example, the steps S320 and S330 in fig. 3 may be: after a first adjusting touch signal (for example, when a finger touches a screen of an ultrasonic detection device) applied by a user on the ultrasonic image is detected, determining an area of interest on the ultrasonic image (for example, an area on the screen corresponding to the finger touched by the finger is an area of interest) according to the first adjusting touch signal; after detecting a second adjustment touch signal (e.g., a signal of finger sliding) applied by the user on the ultrasound image, determining the TGC and the LGC corresponding to the region of interest according to the second adjustment touch signal (e.g., determining whether the gain value increases or decreases according to the direction of sliding, and determining the magnitude of the gain value according to the distance of sliding).
In a specific example, taking an adjusting touch signal as a two-finger touch gesture signal as an example, the first adjusting touch signal is a position signal of two fingers when the two-finger touch gesture contacts the ultrasound image, and an area of interest is determined according to the position signal of the two fingers, for example: referring to fig. 6, the coordinates of the two-finger-contact ultrasound image 610 on the ultrasound image 610 are (x1, y1) and (x2, y2), respectively, and the region of interest 611 may be an elliptical region centered at the middle point of the two fingers (x0, y0) and having lengths | y2-y1|, | x2-x1| of two axes, respectively. The second adjustment touch signal is a direction and a distance signal of the double-finger touch gesture, the increase or decrease of the gain value is determined according to the sliding direction of the double fingers, for example, the gain value is increased when the double-finger touch gesture slides towards the outer side of the double fingers, the gain value is decreased when the double-finger touch gesture slides towards the outer side of the double fingers, and then the size of the gain value is determined according to the sliding distance. For example, referring to fig. 6, the two fingers slide inward from (x1, y1), (x2, y2), respectively, and according to the sliding distance, how much the gain value increases is determined, and the real-time correspondence between the gain value of each pixel of the adjusted ultrasound image and each array element channel and each detection depth can be as shown by a three-dimensional curve 620, in fig. 6, the protruding region corresponding to the three-dimensional curve 620 is the region of interest 611.
In some examples, the target detection depth and the gain value of the target array element channel corresponding to the intermediate point (x0, y0) may be determined according to the sliding distance, and certainly, in order to avoid abrupt change, the gain values of other points in the region of interest are adjusted through a preset strategy to achieve a smoothing effect. According to the embodiment of the application, the TGC and the LGC can be adjusted simultaneously through a simple double-finger touch gesture, so that the operation is simple and convenient.
If the signal is a multi-finger touch gesture signal, when the ultrasonic image is touched by multiple fingers, the region of interest is determined according to the position information of each contact point, the gain value is determined to be increased or decreased according to the sliding direction of the multiple fingers, and the change size of the gain value is determined according to the sliding distance of the multiple fingers. If the gesture information is the single-finger touch gesture information, the region or point corresponding to the contact point of the ultrasonic image can be touched by the finger, the region of interest is determined, whether the gain value is increased or decreased is determined according to the sliding direction of the finger, and the change size of the gain value is determined according to the sliding distance of the finger. Of course, it can be understood that the present application does not limit the corresponding adjustment manner of the gain value of the region of interest by the touch gesture information.
In some examples, if the region of interest is a point corresponding to the target detection depth and the target array element channel in the ultrasound image, taking the coordinates of the point as (x0, y0) as an example, the region of interest, i.e., the point (x0, y0), may be determined first according to the first touch gesture information; and determining the gain value of the point (x0, y0) according to the second touch gesture signal, and adjusting the gain value of a preset area around the point (x0, y0) according to a preset strategy so as to enable the display effect of the ultrasonic image to be natural. For example, referring to fig. 4b, the region of interest is point (0, 2), and the effect of smoothing the points of the surrounding preset region is as a protruding part in the three-dimensional curve 420; and performing gain compensation on the ultrasonic image according to the adjusted three-dimensional curve, and displaying the adjusted ultrasonic image.
In a specific example, taking the adjustment touch signal as a two-finger touch gesture signal as an example, the determining the gain value of the point (x0, y0) according to the second touch gesture signal, and adjusting the gain value of the preset area around the point (x0, y0) according to the preset policy may be: after the region of interest (point (x0, y0)) is determined, a first gain compensation coefficient is determined according to the projection component of the distance between the two fingers in the depth direction of detection; determining a second gain compensation coefficient according to the component of the two-finger distance projected in the direction of the array element channel; and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal. In some examples, after the two fingers are rotated on the ultrasonic image, a first gain compensation coefficient is determined according to a component of the distance between the two rotated fingers projected in the depth direction of the probe; and determining a second gain compensation coefficient according to the component of the rotated distance between the two fingers projected in the direction of the array element channel. In some examples, the first gain compensation coefficient and the second gain compensation coefficient may be used to control a range of a predetermined region around the region of interest and gain values of points of the predetermined region (i.e., to control a smoothing degree) in a predetermined strategy.
Specifically, the determining of the time gain compensation and the lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal may be obtained by the following formulas:
wherein G (x, y) is a gain value;
x is an array element channel;
y is the probe depth;
x0and y0Respectively region of interest point (x)0，y0) Corresponding target array element channels and target detection depth;
alpha is a second gain compensation coefficient;
beta is a first gain compensation coefficient;
gamma and mu are default gain compensation coefficients of each array element channel;
a is the gain intensity obtained according to the second adjustment touch signal;
b is the preset initial gain intensity of each array element channel;
c is the global bias component.
In some examples, the A may be determined from the direction and distance signals of the two finger sliding.
In some examples, if no touch signal is detected, a in the formula (1) is 0, each array element channel x has a gain value G (x, y) corresponding to each probing depth y as described in formula (2):
wherein, gamma and mu are default gain compensation coefficients of each array element channel;
b is the preset initial gain intensity of each array element channel;
c is the global bias component.
In some examples, the adjustment ranges of the temporal gain compensation and the lateral gain compensation corresponding to the region of interest may be preset before step S320. Specifically, taking the upper limit of the range as an example, the maximum value of the preset gain is GmaxThereafter, the gain value G (x, y) of the actual output may be determined according to the following equation (3):
when the maximum gain value adjusted by the user is G (x y)MaxGreater than GMaxWhen the gain value G (x, y) is GMax(ii) a When the maximum gain value adjusted by the user is G (x y)MaxLess than or equal to GMaxWhen the gain value G (x, y) is actually outputted, G (x y)Max. Through the embodiment of setting the preset threshold, unnecessary calculation caused by the fact that the adjustment range is exceeded due to first operation, unskilled operation or misoperation of a user and the like can be reduced.
In some examples, the user first performs touch screen setting through the touch control module, enters the function selection module according to the touch instruction, selects the gain compensation module according to the touch instruction, enters the gain compensation mode after selecting the gain compensation module, and then executes step S320.
The execution order of the steps in the flow shown in fig. 3 is not limited to the order in the flow chart. Furthermore, the description of each step may be implemented in software, hardware or a combination thereof, for example, a person skilled in the art may implement it in the form of software code, and may be a computer executable instruction capable of implementing the corresponding logical function of the step. When implemented in software, the executable instructions may be stored in a memory and executed by a processor in the device.
Corresponding to the embodiment of the method for adjusting the ultrasonic image gain compensation, the application also provides an embodiment of a device for adjusting the ultrasonic image gain compensation and an ultrasonic detector.
Referring to fig. 7, a block diagram of an embodiment of an apparatus for adjusting gain compensation of an ultrasound image according to the present invention, the apparatus 700 may include:
a display module 710 for displaying the ultrasound image to be adjusted;
the processing module 720 is configured to detect an adjustment touch signal applied by a user on the ultrasound image, and determine a region of interest on the ultrasound image according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and enabling a display module to display the adjusted ultrasonic image.
In some examples, the conditioning the touch signal includes: a first conditioned touch signal and a second conditioned touch signal;
the processing module 720 is specifically configured to:
determining a region of interest on the ultrasound image according to the first adjustment touch signal;
and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the second adjustment touch signal.
In some examples, the processing module 720 is specifically configured to:
when the conditioning touch signal is a two-finger touch gesture signal,
determining the positions of two fingers when the two-finger touch gesture contacts the ultrasonic image for the first time;
and determining a target array element channel and a target detection depth corresponding to the midpoint position of the connecting line between the two finger positions as the region of interest.
In some examples, the processing module 720 is specifically configured to:
determining a first gain compensation coefficient according to the projection component of the distance between the two fingers in the depth direction of detection;
determining a second gain compensation coefficient according to the component of the two-finger distance projected in the direction of the array element channel;
and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal.
In some examples, the processing module 720 is specifically configured to determine the time gain compensation and the lateral gain compensation corresponding to the region of interest by the following formulas:
wherein G (x, y) is a gain value;
x is an array element channel;
y is the probe depth;
x0and y0Respectively obtaining a target array element channel and a target detection depth corresponding to the middle point of the two fingers according to the position signals of the two fingers;
alpha is a second gain compensation coefficient;
beta is a first gain compensation coefficient;
gamma and mu are default gain compensation coefficients of each array element channel;
a is the gain intensity obtained according to the sliding direction and the distance signal of the two fingers;
b is the preset initial gain intensity of each array element channel;
c is the global bias component.
In some examples, if no conditioning touch signal is detected, a is 0.
In some examples, the display module 710 is configured to display the adjusted ultrasound image in real time after detecting the adjustment touch signal applied by the user on the ultrasound image.
In some examples, the processing module 720 is further configured to preset adjustment thresholds for the temporal gain compensation and the lateral gain compensation.
Referring to fig. 8, in some examples, the apparatus 700 for adjusting gain compensation of an ultrasound image further includes: the touch control module 730, the function selection module 740, the gain compensation module 750, the information acquisition module 760, the information transmission module 770, and the like, wherein the gain compensation module 750 may include a depth adjustment module and a channel adjustment module. Firstly, a user can set a touch screen through the touch control module 730, enter the function selection module 740 according to a touch instruction of the user, enter the gain compensation module 750 after selecting the gain compensation 750 on an interface displayed by the function selection module 740 through the touch instruction, after an adjustment touch signal is applied on the ultrasonic image by the user, the information acquisition module 760 records the adjustment touch signal, and the information is sent to the processing module 720 through the information transmission module 770, so that the region of interest on the ultrasonic image is determined according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image in the display module 710.
Referring to fig. 9, which is a schematic view of an embodiment of the ultrasonic testing apparatus of the present application, the ultrasonic testing apparatus may include: a memory 920, a processor 930, and a display 950 connected by an internal bus 910.
Wherein, the memory 920 is used for storing machine readable instructions corresponding to the processing logic for adjusting the gain compensation of the ultrasound image;
the display 950 is configured to display an ultrasound image to be adjusted;
the processor 930, configured to detect an adjustment touch signal applied by a user on the ultrasound image, and determine a region of interest on the ultrasound image according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and enabling the display 950 to display the adjusted ultrasound image.
In addition, the flow of adjusting the ultrasound image gain compensation shown in the embodiment of the present application may also be included in a computer-readable storage medium, where the storage medium may be connected to a processing device executing instructions, and the storage medium stores machine-readable instructions corresponding to adjusting the ultrasound image gain compensation, where the instructions are executable by the processing device, and the machine-readable instructions are used to implement the following operations:
displaying an ultrasonic image to be adjusted;
detecting an adjusting touch signal applied on the ultrasonic image by a user, and determining an interested area on the ultrasonic image according to the adjusting touch signal;
determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal;
and performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image.
In the embodiments of the present application, the computer readable storage medium may be in various forms, such as, in different examples: a RAM (random Access Memory), a volatile Memory, a non-volatile Memory, a flash Memory, a storage drive (e.g., a hard drive), a solid state drive, any type of storage disk (e.g., an optical disk, a dvd, etc.), or similar storage medium, or a combination thereof. In particular, the computer readable medium may be paper or another suitable medium upon which the program is printed. Using these media, the programs can be electronically captured (e.g., optically scanned), compiled, interpreted, and processed in a suitable manner, and then stored in a computer medium.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (9)
1. A method of adjusting gain compensation in an ultrasound image, the method comprising:
displaying an ultrasonic image to be adjusted;
detecting an adjusting touch signal applied on the ultrasonic image by a user, and determining an interested area on the ultrasonic image according to the adjusting touch signal;
determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal;
performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image;
wherein the adjusting the touch signal comprises: a first conditioned touch signal and a second conditioned touch signal; determining a region of interest on the ultrasonic image according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal, including:
when the first adjusting touch signal is a double-finger touch gesture signal, determining the positions of two fingers when the double-finger touch gesture contacts the ultrasonic image for the first time; determining a target array element channel and a target detection depth corresponding to the midpoint position of a connecting line between the two finger positions as the region of interest;
determining a first gain compensation coefficient according to the projection component of the distance between the two fingers in the depth direction of detection; determining a second gain compensation coefficient according to the component of the two-finger distance projected in the direction of the array element channel; and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal.
2. The method of claim 1, wherein determining the temporal gain compensation and the lateral gain compensation corresponding to the region of interest based on the adjusted touch signal comprises:
according to the adjusting touch signal, adjusting the corresponding relation between the detection depth and the array element channel corresponding to the region of interest in the ultrasonic image and the gain value;
and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted corresponding relation.
3. The method of claim 1, wherein the calculation formula for determining the time gain compensation and the lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjusted touch signal is as follows:
wherein, G (x, y) is time gain compensation and lateral gain compensation corresponding to the region of interest;
x is an array element channel;
y is the probe depth;
x0and y0Respectively obtaining a target array element channel and a target detection depth corresponding to the middle point of the two fingers according to the position signals of the two fingers;
alpha is a second gain compensation coefficient;
beta is a first gain compensation coefficient;
gamma and mu are default gain compensation coefficients of each array element channel;
a is the gain intensity obtained according to the sliding direction and the distance signal of the two fingers;
b is the preset initial gain intensity of each array element channel;
c is the global bias component.
4. The method of claim 3, wherein if no conditioning touch signal is detected, A-0.
5. The method of claim 1, wherein after detecting the adjusted touch signal applied by the user on the ultrasound image, the method further comprises: and displaying the adjusted ultrasonic image in real time.
6. The method of claim 1, wherein before determining the temporal gain compensation and the lateral gain compensation corresponding to the region of interest based on the adjusted touch signal, the method further comprises:
and presetting gain threshold values of the time gain compensation and the lateral gain compensation.
7. An ultrasonic testing machine, comprising: the memory, the processor and the display are connected through an internal bus;
wherein the memory is used for storing machine readable instructions corresponding to the processing logic for adjusting the gain compensation of the ultrasonic image;
the display is used for displaying the ultrasonic image to be adjusted;
the processor is used for detecting an adjusting touch signal applied on the ultrasonic image by a user and determining an interested area on the ultrasonic image according to the adjusting touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and enabling a display to display the adjusted ultrasonic image; wherein the adjusting the touch signal comprises: a first conditioned touch signal and a second conditioned touch signal; determining a region of interest on the ultrasonic image according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal, including: when the first adjusting touch signal is a double-finger touch gesture signal, determining the positions of two fingers when the double-finger touch gesture contacts the ultrasonic image for the first time; determining a target array element channel and a target detection depth corresponding to the midpoint position of a connecting line between the two finger positions as the region of interest; determining a first gain compensation coefficient according to the projection component of the distance between the two fingers in the depth direction of detection; determining a second gain compensation coefficient according to the component of the two-finger distance projected in the direction of the array element channel; and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal.
8. An apparatus for adjusting gain compensation of an ultrasound image, the apparatus comprising:
the display module is used for displaying the ultrasonic image to be adjusted;
the processing module is used for detecting an adjusting touch signal applied on the ultrasonic image by a user and determining an interested area on the ultrasonic image according to the adjusting touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal; performing display adjustment on the region of interest according to the time gain compensation and the lateral gain compensation, and displaying the adjusted ultrasonic image; wherein the adjusting the touch signal comprises: a first conditioned touch signal and a second conditioned touch signal; determining a region of interest on the ultrasonic image according to the adjustment touch signal; determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the adjusted touch signal, including: when the first adjusting touch signal is a double-finger touch gesture signal, determining the positions of two fingers when the double-finger touch gesture contacts the ultrasonic image for the first time; determining a target array element channel and a target detection depth corresponding to the midpoint position of a connecting line between the two finger positions as the region of interest; determining a first gain compensation coefficient according to the projection component of the distance between the two fingers in the depth direction of detection; determining a second gain compensation coefficient according to the component of the two-finger distance projected in the direction of the array element channel; and determining time gain compensation and lateral gain compensation corresponding to the region of interest according to the first gain compensation coefficient, the second gain compensation coefficient and the second adjustment touch signal.
9. A machine-readable storage medium having stored thereon computer instructions which, when executed, perform the method of any one of claims 1 to 6.
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