An ultrasound imaging method, apparatus, device, ultrasound imaging system, and medium

Abstract

The application discloses an ultrasonic imaging method, device, equipment, ultrasonic imaging system and medium, and relates to the technical field of medical images.The method comprises the following steps: in response to detecting a triggering operation of an imaging control in a visualization interface, sending an ultrasonic imaging instruction to an ultrasonic generating device, so that the ultrasonic generating device emits a first ultrasonic wave signal to a target object; receiving a first echo signal corresponding to the first ultrasonic wave signal and sent by the ultrasonic generating device; generating an initial ultrasonic image based on the first echo signal, performing an image enhancement operation on the initial ultrasonic image, and outputting a target ultrasonic image.The embodiment of the application adopts a soft and hard combined interactive imaging mode, solves the problem that an ultrasonic image output by a traditional ultrasonic imaging system contains more noise information, improves the image quality of the ultrasonic image, and further reduces the difficulty of doctors in interpreting the ultrasonic image.

Description

Technical Field

[0001] This invention relates to the field of medical imaging technology, and in particular to an ultrasound imaging method, apparatus, device, ultrasound imaging system, and medium. Background Technology

[0002] Ultrasound imaging is a safe, convenient, non-invasive, and highly repeatable imaging technique. Its basic principle is to use ultrasound waves to scan the target object, process the received echo signals, and generate an ultrasound image of the target object. The image quality of the ultrasound image directly affects the accuracy of the doctor's interpretation of the results.

[0003] Existing ultrasound imaging systems have a low signal-to-noise ratio, and the ultrasound imaging environment is complex and variable, resulting in a lot of noise information in the generated ultrasound images, which increases the difficulty for doctors to interpret the ultrasound images. Summary of the Invention

[0004] This invention provides an ultrasound imaging method, apparatus, device, ultrasound imaging system, and medium to address the problem that traditional ultrasound imaging systems output ultrasound images containing a lot of noise, thereby improving the image quality of ultrasound images and reducing the difficulty for doctors to interpret ultrasound images.

[0005] According to an embodiment of the present invention, an ultrasound imaging method is provided, applied to a terminal device, the method comprising:

[0006] In response to the detection of a trigger operation of the imaging control in the visualization interface, an ultrasound imaging command is sent to the ultrasound generating device so that the ultrasound generating device emits a first ultrasound signal toward the target object;

[0007] Receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generating device;

[0008] Based on the first echo signal, an initial ultrasound image is generated, and an image enhancement operation is performed on the initial ultrasound image to output a target ultrasound image.

[0009] According to another embodiment of the present invention, an ultrasound imaging method is provided, applied to an ultrasound generating device, the method comprising:

[0010] In response to detecting an ultrasound imaging command sent by a terminal device, a first ultrasound signal is emitted toward the target object;

[0011] Receive the first echo signal corresponding to the first ultrasonic signal;

[0012] The first echo signal is sent to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal.

[0013] According to another embodiment of the present invention, an ultrasound imaging device is provided for use in a terminal device, the device comprising:

[0014] An ultrasound imaging command sending module is used to send an ultrasound imaging command to an ultrasound generating device in response to a trigger operation of an imaging control in a visualization interface, so that the ultrasound generating device emits a first ultrasound signal toward a target object.

[0015] The first echo signal receiving module is used to receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generating device;

[0016] The target ultrasound image output module is used to generate an initial ultrasound image based on the first echo signal, perform image enhancement operation on the initial ultrasound image, and output the target ultrasound image.

[0017] According to another embodiment of the present invention, an ultrasound imaging apparatus is provided, applied to an ultrasound generating device, the apparatus comprising:

[0018] The first ultrasonic signal transmitting module is used to transmit a first ultrasonic signal to the target object in response to detecting an ultrasonic imaging command sent by the terminal device;

[0019] The first echo signal receiving module is used to receive the first echo signal corresponding to the first ultrasonic signal;

[0020] The first echo signal transmitting module is used to transmit the first echo signal to the terminal device so that the terminal device can output a target ultrasound image based on the first echo signal.

[0021] According to another embodiment of the present invention, a terminal device is provided, the terminal device comprising:

[0022] At least one processor; and

[0023] A memory communicatively connected to the at least one processor; wherein,

[0024] The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the ultrasound imaging method according to any embodiment of the present invention.

[0025] According to another embodiment of the present invention, an ultrasonic generating device is provided, the ultrasonic generating device comprising: an ultrasonic transmitter and an ultrasonic receiver;

[0026] The ultrasonic transmitter is used to transmit a first ultrasonic signal toward the target object in response to detecting an ultrasonic imaging command sent by the terminal device;

[0027] The ultrasound receiver is used to receive a first echo signal corresponding to the first ultrasound signal and send the first echo signal to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal.

[0028] According to another embodiment of the present invention, an ultrasound imaging system is provided, the ultrasound imaging system comprising: a terminal device and an ultrasound generator, wherein the terminal device and the ultrasound generator are communicatively connected;

[0029] Wherein, the terminal device adopts the terminal device described in any embodiment of the present invention, and the ultrasonic generating device adopts the ultrasonic generating device described in any embodiment of the present invention.

[0030] According to another embodiment of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the ultrasound imaging method according to any embodiment of the present invention.

[0031] The technical solution of this invention, in response to the triggering operation of the imaging control in the visualization interface, sends an ultrasound imaging command to the ultrasound generating device, so that the ultrasound generating device emits a first ultrasound signal toward the target object, receives a first echo signal corresponding to the first ultrasound signal sent by the ultrasound generating device, generates an initial ultrasound image based on the first echo signal, performs image enhancement operation on the initial ultrasound image, and outputs the target ultrasound image. It adopts an interactive imaging method combining hardware and software, which solves the problem that the ultrasound images output by traditional ultrasound imaging systems contain a lot of noise information, improves the image quality of ultrasound images, and thus reduces the difficulty for doctors to interpret ultrasound images.

[0032] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A flowchart illustrating an ultrasound imaging method provided in one embodiment of the present invention;

[0035] Figure 2A flowchart illustrating another ultrasound imaging method provided in one embodiment of the present invention;

[0036] Figure 3 A flowchart illustrating another ultrasound imaging method provided in one embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of an ultrasound image output by a conventional ultrasound imaging system according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of a target ultrasound image provided in one embodiment of the present invention;

[0039] Figure 6 A flowchart illustrating an ultrasound imaging method provided in one embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of an ultrasound imaging device provided in one embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of an ultrasound imaging device provided in one embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of the structure of a terminal device provided in one embodiment of the present invention;

[0043] Figure 10 This is a schematic diagram of the structure of an ultrasonic generator according to an embodiment of the present invention;

[0044] Figure 11 This is a schematic diagram of the structure of an ultrasound imaging system provided in one embodiment of the present invention;

[0045] Figure 12 This is a timing diagram of an ultrasound imaging system provided in one embodiment of the present invention. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0047] It should be noted that the terms "first," "second," "initial," "target," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0048] Figure 1 This is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention. This embodiment is applicable to situations where an ultrasound imaging system outputs ultrasound images. The method can be executed by an ultrasound imaging device, which can be implemented in hardware and / or software and can be configured in a terminal device. Figure 1 As shown, the method includes:

[0049] S110, In response to detecting the trigger operation of the imaging control in the visualization interface, an ultrasound imaging command is sent to the ultrasound generating device so that the ultrasound generating device emits a first ultrasound signal toward the target object.

[0050] Specifically, the visual interface is used to represent the interactive interface provided by the terminal device. For example, the visual interface includes imaging controls, parameter selection controls, image display areas, data operation controls, etc. The content of the interface included in the visual interface is not limited here.

[0051] Specifically, the first ultrasonic signal is a sound wave signal with a spectral center frequency exceeding 2kHz. For example, the spectral center frequency of the first ultrasonic signal meets the frequency range of 2MHz-20MHz. Here, the spectral center frequency of the first ultrasonic signal is not limited, but is determined according to the actual imaging requirements.

[0052] S120: Receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generator.

[0053] Specifically, the first echo signal can be used to characterize the ultrasonic signal after the first ultrasonic signal has been reflected, diffracted, refracted, or scattered by the target object.

[0054] S130. Based on the first echo signal, generate an initial ultrasound image, perform image enhancement operation on the initial ultrasound image, and output the target ultrasound image.

[0055] For example, the imaging algorithms used to generate the initial ultrasound image include, but are not limited to, A-mode, B-mode, or M-mode imaging algorithms. The A-mode imaging algorithm displays the first echo signal as a wave; the vertical axis of the initial ultrasound image represents the height of the wave amplitude, i.e., the intensity of the first echo signal, and the horizontal axis represents the round-trip time of the first echo signal, i.e., the distance or depth detected by the first ultrasound signal. The B-mode imaging algorithm displays the first echo signal as light spots, i.e., grayscale. The intensity of the light spots reflects the strength of ultrasound reflection and attenuation at the echo interface. These light spots, light rays, and light surfaces constitute a two-dimensional tomographic or cross-sectional image of the target object. The M-mode imaging algorithm incorporates a slow-scan sawtooth wave, causing the first echo signal to move and scan from left to right. The vertical axis of the initial ultrasound image represents the scan time, i.e., the ultrasound propagation time, and the horizontal axis represents the slow scan time of the light spots. The imaging algorithm used here is not limited; it can be determined according to actual imaging requirements.

[0056] For example, the image enhancement operation may employ enhancement algorithms including, but not limited to, at least one of filtering algorithms and fusion algorithms.

[0057] The technical solution of this embodiment, in response to the trigger operation of the imaging control in the visualization interface, sends an ultrasound imaging command to the ultrasound generating device, so that the ultrasound generating device emits a first ultrasound signal toward the target object, receives a first echo signal corresponding to the first ultrasound signal sent by the ultrasound generating device, generates an initial ultrasound image based on the first echo signal, performs image enhancement operation on the initial ultrasound image, and outputs the target ultrasound image. It adopts an interactive imaging method that combines hardware and software, which solves the problem that the ultrasound images output by traditional ultrasound imaging systems contain a lot of noise information, improves the image quality of ultrasound images, and thus reduces the difficulty for doctors to interpret ultrasound images.

[0058] Figure 2 This is a flowchart of another ultrasound imaging method provided in one embodiment of the present invention. This embodiment further refines the "generating an initial ultrasound image based on the first echo signal" in the above embodiment. Figure 2 As shown, the method includes:

[0059] S210, In response to detecting the trigger operation of the imaging control in the visualization interface, an ultrasound imaging command is sent to the ultrasound generating device so that the ultrasound generating device emits a first ultrasound signal toward the target object.

[0060] S220: Receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generator.

[0061] In this embodiment, S210-S220 and Figure 1The S110-S120 shown are the same or similar, and will not be described again in this embodiment.

[0062] S230, Obtain the system noise signal corresponding to the ultrasonic generator.

[0063] As an alternative embodiment, the system noise signal can be pre-input.

[0064] As another optional embodiment, obtaining the system noise signal corresponding to the ultrasonic generator includes: obtaining a first attenuation signal in the first echo signal based on a first duration threshold or a first intensity threshold; performing a sampling operation on the first attenuation signal to obtain the system noise signal of the ultrasonic generator.

[0065] Specifically, the phenomenon that the energy of an ultrasonic signal gradually weakens as the propagation distance increases during its propagation in a medium is called ultrasonic signal attenuation. For example, the causes of attenuation include, but are not limited to, diffusion attenuation, scattering attenuation, and absorption attenuation.

[0066] Specifically, the echo signal whose propagation time exceeds a first duration threshold in the first echo signal is used as the first attenuation signal, or the echo signal whose signal strength is lower than a first intensity threshold in the first echo signal is used as the first attenuation signal.

[0067] As another optional embodiment, acquiring the system noise signal corresponding to the ultrasonic generator includes: sending a noise monitoring command to the ultrasonic generator to cause the ultrasonic generator to emit at least one second ultrasonic signal toward the target object; receiving second echo signals sent by the ultrasonic generator that correspond to at least one second ultrasonic signal; acquiring a second attenuation signal in each second echo signal based on a second duration threshold or a second intensity threshold, and performing a sampling operation on each second attenuation signal to obtain an ultrasonic sampling signal; and determining the system noise signal of the ultrasonic generator based on each ultrasonic sampling signal.

[0068] Specifically, the noise monitoring command may be generated in response to a trigger operation of the noise monitoring control in the visualization interface, or in response to a trigger operation of the imaging control in the visualization interface. In one embodiment, the trigger operation of the imaging control triggers the generation of both the ultrasound imaging command and the noise monitoring command, and the order in which the ultrasound imaging command and the noise monitoring command are sent to the ultrasound generating device is not limited here.

[0069] Specifically, the first duration threshold and the second duration threshold can be the same or different, and the first intensity threshold and the second intensity threshold can be the same or different.

[0070] Specifically, for each second echo signal, the echo signal whose propagation time exceeds the second duration threshold is used as the second attenuation signal, or the echo signal whose signal strength is lower than the second intensity threshold is used as the second attenuation signal.

[0071] In this embodiment, for example, determining the system noise signal of the ultrasonic generator based on each ultrasonic sampling signal includes: taking the maximum value, minimum value, average value, and median value corresponding to each ultrasonic sampling signal as the system noise signal of the ultrasonic generator.

[0072] In this embodiment, the center frequency of the spectrum of the first ultrasonic signal is lower than the center frequency of the spectrum of the second ultrasonic signal.

[0073] The first ultrasonic signal is affected by imaging parameter requirements. When its spectral center frequency is low, the attenuation rate of the first echo signal is slow. Furthermore, due to the performance limitations of the ultrasonic transducer in the ultrasonic generator, the first attenuated signal in the first echo signal may not be detected based on a first duration threshold or a first intensity threshold. This embodiment controls the ultrasonic generator to emit a second ultrasonic signal with a spectral center frequency higher than the first ultrasonic signal. Because the second echo signal attenuates faster, the aforementioned technical problems that may occur with the first echo signal can be solved.

[0074] Based on the above embodiments, optionally, the system noise signal of the ultrasonic generator is determined based on each ultrasonic sampling signal, including: using the system noise signal determined based on the first echo signal as a reference noise signal, and using the reference noise signal and the maximum, minimum, average and median values ​​corresponding to each ultrasonic sampling signal as the system noise signal of the ultrasonic generator.

[0075] The advantage of this setting is that it makes the system noise signal closer to the real noise signal, thereby further improving the image quality of the target ultrasound image.

[0076] As an optional embodiment, before obtaining the second attenuation signal in each second echo signal based on the second duration threshold or the second intensity threshold, the method further includes: using a high-pass filter to perform filtering operations on each received second echo signal.

[0077] The filtering principle of the high-pass filter is to allow the high-frequency echo signal in the second echo signal to pass normally, while the low-frequency echo signal below the filtering threshold is blocked or weakened.

[0078] The advantage of this setting is that by filtering out the low-frequency echo signal in the second echo signal, the subsequent system noise signal can be closer to the real noise signal, thereby further improving the image quality of the target ultrasound image.

[0079] S240. Generate an initial ultrasound image based on the system noise signal and the first echo signal.

[0080] As an optional embodiment, generating an initial ultrasound image based on the system noise signal and the first echo signal includes: subtracting the system noise signal from the first echo signal to obtain a noise-reduced echo signal, and generating the initial ultrasound image based on the noise-reduced echo signal.

[0081] As another optional embodiment, generating an initial ultrasound image based on the system noise signal and the first echo signal includes: generating a system noise image based on the system noise signal, generating a first ultrasound image based on the first echo signal, and subtracting the system noise image from the first ultrasound image to obtain the initial ultrasound image.

[0082] S250: Perform image enhancement operation on the initial ultrasound image and output the target ultrasound image.

[0083] The technical solution of this embodiment obtains the system noise signal corresponding to the ultrasound generating device, and generates an initial ultrasound image based on the system noise signal and the first echo signal. From the perspective of hardware system noise, it further solves the problem of ultrasound images containing a lot of noise information, thereby further improving the image quality of ultrasound images and further reducing the difficulty for doctors to interpret ultrasound images.

[0084] Figure 3 This is a flowchart of another ultrasound imaging method provided in one embodiment of the present invention. This embodiment further refines the step of "performing image enhancement operation on the initial ultrasound image and outputting the target ultrasound image" in the above embodiment. Figure 3 As shown, the method includes:

[0085] S310, In response to detecting a trigger operation of the imaging control in the visualization interface, an ultrasound imaging command is sent to the ultrasound generating device so that the ultrasound generating device emits a first ultrasound signal toward the target object.

[0086] S320: Receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generator.

[0087] S330. Generate an initial ultrasound image based on the first echo signal.

[0088] In this embodiment, S310-S320 and Figure 1 The S110-S120 shown are the same or similar, and S330 is the same as... Figure 1 S130 shown or related Figure 2 The S230-S240 shown are the same or similar, and will not be described again in this embodiment.

[0089] S340. Perform a logarithmic transformation on the initial ultrasound image to obtain a guiding ultrasound image, and perform a preset filtering operation on the guiding ultrasound image to obtain a low-frequency ultrasound image.

[0090] Logarithmic transformation can expand low-gray-value image regions in the initial ultrasound image, highlighting image details in these regions, while compressing high-gray-value image regions in the initial ultrasound image, suppressing image details in these regions.

[0091] For example, the preset filtering operation may use preset filtering algorithms including but not limited to WNNM (Weighted Nuclear Norm Minimization) filtering algorithm, adaptive median filtering algorithm, and bilateral filtering algorithm, etc. The preset filtering algorithm is not limited here, and it can be customized according to actual needs.

[0092] For example, guiding ultrasound images are represented by B, and low-frequency ultrasound images are represented by C0.

[0093] S350, The difference image between the guiding ultrasound image and the low-frequency ultrasound image is used as the high-frequency ultrasound image.

[0094] For example, high-frequency ultrasound images are represented by D0, where D0 = B - C0.

[0095] S360 outputs a target ultrasound image based on the guiding ultrasound image, low-frequency ultrasound image, and high-frequency ultrasound image.

[0096] As an optional embodiment, outputting a target ultrasound image based on a guiding ultrasound image, a low-frequency ultrasound image, and a high-frequency ultrasound image includes: using the low-frequency ultrasound image and the high-frequency ultrasound image as the current low-frequency ultrasound image and the current high-frequency ultrasound image, respectively, and obtaining the current filtering parameters corresponding to the current iteration number; performing a guiding filtering operation on the current low-frequency ultrasound image based on the current filtering parameters and the guiding ultrasound image to obtain the next low-frequency ultrasound image; using the difference image between the current low-frequency ultrasound image and the next low-frequency ultrasound image as the next high-frequency ultrasound image; using the next low-frequency ultrasound image and the next high-frequency ultrasound image as the current low-frequency ultrasound image and the current high-frequency ultrasound image, respectively, and iteratively executing the step of obtaining the current filtering parameters corresponding to the current iteration number; until the current iteration number reaches a preset threshold, outputting the target ultrasound image based on each low-frequency ultrasound image and each high-frequency ultrasound image.

[0097] The current filter parameters characterize the filter parameters in the guided filtering algorithm used in the guided filtering operation. For example, filter parameters include, but are not limited to, the filter radius, the filter window size, and the penalty coefficient. In this embodiment, the filter parameters used for each execution of the guided filtering operation are different.

[0098] For example, the next low-frequency ultrasound image uses C i+1 This indicates that the next high-frequency ultrasound image uses D... i+1 D indicates i+1 =C i -C i+1 , where 0≤i≤M-1, and M represents the preset number of times threshold.

[0099] Specifically, each low-frequency ultrasound image constitutes a low-frequency image set C = {C0, C1, ..., C...} < The high-frequency ultrasound images constitute a high-frequency image set D = {D0, D1, ..., D}. M}

[0100] As an optional embodiment, outputting a target ultrasound image based on each low-frequency ultrasound image and each high-frequency ultrasound image includes: obtaining the image variance corresponding to each high-frequency ultrasound image, and determining the high-frequency weight corresponding to each high-frequency ultrasound image based on each image variance; taking the high-frequency ultrasound image with the largest image variance as the target high-frequency ultrasound image, and taking the low-frequency ultrasound image corresponding to the target high-frequency ultrasound image as the target low-frequency ultrasound image; determining the low-frequency weight corresponding to each low-frequency ultrasound image based on the target low-frequency ultrasound image and a preset Gaussian distribution; and performing a weighted summation operation on each low-frequency ultrasound image and each high-frequency ultrasound image based on each high-frequency weight and each low-frequency weight to output the target ultrasound image.

[0101] Specifically, the maximum image variance among the variances of each image is obtained, and for each high-frequency ultrasound image, the ratio between the maximum image variance and the corresponding image variance of the high-frequency ultrasound image is used as the high-frequency weight of the high-frequency ultrasound image.

[0102] For example, high-frequency weights Satisfying the formula:

[0103]

[0104] in, Represents the maximum image variance. Let represent the image variance corresponding to the i-th high-frequency ultrasound image.

[0105] For example, when the target high-frequency ultrasound image is D i At that time, the target low-frequency ultrasound image was C i .

[0106] For example, a preset Gaussian distribution represents a standard normal distribution with a standard deviation of 1 and a mean of 0. Here, the distribution parameter values ​​of the preset Gaussian distribution are not limited.

[0107] As an optional embodiment, based on the target low-frequency ultrasound image and a preset Gaussian distribution, the low-frequency weights corresponding to each low-frequency ultrasound image are determined, including: the low-frequency weights corresponding to each low-frequency ultrasound image satisfy a preset Gaussian distribution centered on the target low-frequency ultrasound image.

[0108] As another optional embodiment, based on the target low-frequency ultrasound image and a preset Gaussian distribution, the low-frequency weights corresponding to each low-frequency ultrasound image are determined, including: obtaining the previous low-frequency ultrasound image and the next low-frequency ultrasound image corresponding to the target low-frequency ultrasound image, wherein the low-frequency weights corresponding to the previous low-frequency ultrasound image, the next low-frequency ultrasound image and the target low-frequency ultrasound image respectively satisfy a preset Gaussian distribution centered on the target low-frequency ultrasound image, and the low-frequency weights corresponding to other low-frequency ultrasound images are 0.

[0109] Figure 4 This is a schematic diagram of an ultrasound image output by a conventional ultrasound imaging system according to an embodiment of the present invention. Figure 5 This is a schematic diagram of a target ultrasound image provided in one embodiment of the present invention. Specifically, Figure 4 The right side of the ultrasound image contains significant noise. Figure 5 The right side of the target ultrasound image does not contain noise information.

[0110] The technical solution of this embodiment obtains a guiding ultrasound image by performing a logarithmic transformation on the initial ultrasound image, and obtains a low-frequency ultrasound image by performing a preset filtering operation on the guiding ultrasound image. The difference image between the guiding ultrasound image and the low-frequency ultrasound image is used as a high-frequency ultrasound image. Based on the guiding ultrasound image, the low-frequency ultrasound image, and the high-frequency ultrasound image, the target ultrasound image is output. From the perspective of image noise, this further solves the problem of ultrasound images containing a lot of noise information, thereby further improving the image quality of ultrasound images and further reducing the difficulty for doctors to interpret ultrasound images.

[0111] Figure 6 This is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention. This embodiment is applicable to situations where an ultrasound imaging system outputs ultrasound images. The method can be executed by an ultrasound imaging device, which can be implemented in hardware and / or software and can be configured within an ultrasound generating device. Figure 6 As shown, the method includes:

[0112] S410, In response to detecting an ultrasonic imaging command sent by a terminal device, a first ultrasonic signal is emitted toward the target object.

[0113] Specifically, the first ultrasonic signal is a sound wave signal with a spectral center frequency exceeding 2kHz. For example, the spectral center frequency of the first ultrasonic signal meets the frequency range of 2MHz-20MHz. Here, the spectral center frequency of the first ultrasonic signal is not limited, but is determined according to the actual imaging requirements.

[0114] In this embodiment, a first ultrasonic signal is emitted toward the target object via an ultrasonic transmitter in an ultrasonic generating device.

[0115] S420: Receive the first echo signal corresponding to the first ultrasonic signal.

[0116] Specifically, the ultrasonic receiver in the ultrasonic generator receives the first echo signal corresponding to the first ultrasonic signal. The first echo signal can be used to characterize the ultrasonic signal after the first ultrasonic signal is reflected, diffracted, refracted or scattered by the target object.

[0117] S430: Send the first echo signal to the terminal device so that the terminal device can output the target ultrasound image based on the first echo signal.

[0118] Specifically, the first echo signal is sent to the terminal device through the ultrasound receiver in the ultrasound generator.

[0119] As an optional embodiment, the method further includes: in response to detecting a noise monitoring command sent by a terminal device, transmitting at least one second ultrasonic signal to the target object; receiving second echo signals corresponding to each second ultrasonic signal, and sending each second echo signal to the terminal device; wherein the spectral center frequency of the first ultrasonic signal is lower than the spectral center frequency of the second ultrasonic signal.

[0120] Specifically, the noise monitoring command may be generated in response to the detection of a trigger operation of the noise monitoring control in the visualization interface, or in response to the detection of a trigger operation of the imaging control in the visualization interface.

[0121] The technical solution of this embodiment, in response to the detection of an ultrasound imaging command sent by a terminal device, transmits a first ultrasound signal to the target object, receives a first echo signal corresponding to the first ultrasound signal, and sends the first echo signal to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal. It adopts an interactive imaging method that combines hardware and software, which solves the problem that the ultrasound images output by traditional ultrasound imaging systems contain a lot of noise information, improves the image quality of ultrasound images, and thus reduces the difficulty for doctors to interpret ultrasound images.

[0122] The following are embodiments of the ultrasound imaging device provided in this invention. This device and the ultrasound imaging method applied to the terminal device in the above embodiments belong to the same inventive concept. For details not described in detail in the embodiments of the ultrasound imaging device, please refer to the content of the ultrasound imaging method applied to the terminal device in the above embodiments.

[0123] Figure 7 This is a schematic diagram of the structure of an ultrasound imaging device according to an embodiment of the present invention. Figure 7 As shown, the device includes: an ultrasound imaging command sending module 510, a first echo signal receiving module 520, and a target ultrasound image output module 530.

[0124] The ultrasound imaging command sending module 510 is used to send an ultrasound imaging command to the ultrasound generating device in response to the detection of the trigger operation of the imaging control in the visualization interface, so that the ultrasound generating device emits a first ultrasound signal toward the target object;

[0125] The first echo signal receiving module 520 is used to receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generating device;

[0126] The target ultrasound image output module 530 is used to generate an initial ultrasound image based on the first echo signal, perform image enhancement operation on the initial ultrasound image, and output the target ultrasound image.

[0127] The technical solution of this embodiment, in response to the trigger operation of the imaging control in the visualization interface, sends an ultrasound imaging command to the ultrasound generating device, so that the ultrasound generating device emits a first ultrasound signal toward the target object, receives a first echo signal corresponding to the first ultrasound signal sent by the ultrasound generating device, generates an initial ultrasound image based on the first echo signal, performs image enhancement operation on the initial ultrasound image, and outputs the target ultrasound image. It adopts an interactive imaging method that combines hardware and software, which solves the problem that the ultrasound images output by traditional ultrasound imaging systems contain a lot of noise information, improves the image quality of ultrasound images, and thus reduces the difficulty for doctors to interpret ultrasound images.

[0128] As an optional embodiment, the target ultrasound image output module 530 includes:

[0129] The system noise signal acquisition unit is used to acquire the system noise signal corresponding to the ultrasonic generator.

[0130] The initial ultrasound image generation unit generates an initial ultrasound image based on the system noise signal and the first echo signal.

[0131] As an optional embodiment, the system noise signal acquisition unit includes:

[0132] The first system noise signal acquisition subunit is used to acquire the first attenuation signal in the first echo signal based on a first duration threshold or a first intensity threshold.

[0133] A sampling operation is performed on the first attenuation signal to obtain the system noise signal of the ultrasonic generator.

[0134] As an optional embodiment, the system noise signal acquisition unit includes:

[0135] The second system noise signal acquisition subunit is used to send noise monitoring instructions to the ultrasonic generator so that the ultrasonic generator can emit at least one second ultrasonic signal toward the target object.

[0136] Receive second echo signals sent by the ultrasonic generator, which correspond to at least one second ultrasonic signal respectively;

[0137] Based on the second duration threshold or the second intensity threshold, the second attenuation signal in each second echo signal is obtained, and sampling operation is performed on each second attenuation signal to obtain the ultrasonic sampling signal;

[0138] Based on each ultrasonic sampling signal, the system noise signal of the ultrasonic generating equipment is determined;

[0139] The center frequency of the spectrum of the first ultrasonic signal is lower than that of the center frequency of the spectrum of the second ultrasonic signal.

[0140] As an optional embodiment, the device further includes:

[0141] The second echo signal filtering module is used to perform filtering operations on each received second echo signal by using a high-pass filter before obtaining the second attenuation signal in each second echo signal based on a second duration threshold or a second intensity threshold.

[0142] As an optional embodiment, the target ultrasound image output module 530 includes:

[0143] The target ultrasound image output unit is used to perform a logarithmic transformation operation on the initial ultrasound image to obtain a guiding ultrasound image, and to perform a preset filtering operation on the guiding ultrasound image to obtain a low-frequency ultrasound image;

[0144] The difference image between the guiding ultrasound image and the low-frequency ultrasound image is used as the high-frequency ultrasound image.

[0145] Based on the guiding ultrasound image, low-frequency ultrasound image, and high-frequency ultrasound image, the target ultrasound image is output.

[0146] As an optional embodiment, the target ultrasound image output unit includes:

[0147] The target ultrasound image output subunit is used to take the low-frequency ultrasound image and the high-frequency ultrasound image as the current low-frequency ultrasound image and the current high-frequency ultrasound image, respectively, and obtain the current filtering parameters corresponding to the current iteration number.

[0148] Based on the current filtering parameters and the guiding ultrasound image, a guiding filtering operation is performed on the current low-frequency ultrasound image to obtain the next low-frequency ultrasound image;

[0149] The difference image between the current low-frequency ultrasound image and the next low-frequency ultrasound image is used as the next high-frequency ultrasound image.

[0150] The next low-frequency ultrasound image and the next high-frequency ultrasound image are used as the current low-frequency ultrasound image and the current high-frequency ultrasound image, respectively, and the step of obtaining the current filter parameters corresponding to the current iteration number is executed iteratively.

[0151] The target ultrasound image is output based on each low-frequency ultrasound image and each high-frequency ultrasound image when the current iteration number reaches the preset threshold number.

[0152] As an optional embodiment, the target ultrasound image output subunit is specifically used for:

[0153] Obtain the image variance corresponding to each high-frequency ultrasound image, and determine the high-frequency weight corresponding to each high-frequency ultrasound image based on the image variance.

[0154] The high-frequency ultrasound image corresponding to the largest image variance is taken as the target high-frequency ultrasound image, and the low-frequency ultrasound image corresponding to the target high-frequency ultrasound image is taken as the target low-frequency ultrasound image.

[0155] Based on the target low-frequency ultrasound image and the preset Gaussian distribution, the low-frequency weights corresponding to each low-frequency ultrasound image are determined.

[0156] Based on the weights of each high frequency and each low frequency, a weighted summation operation is performed on each low-frequency ultrasound image and each high-frequency ultrasound image to output the target ultrasound image.

[0157] The ultrasound imaging device provided in this embodiment of the invention can execute the ultrasound imaging method for terminal devices provided in the above embodiments of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0158] The following are embodiments of the ultrasonic imaging device provided in this invention. This device and the ultrasonic imaging method applied to the ultrasonic generating equipment in the above embodiments belong to the same inventive concept. For details not described in detail in the embodiments of the ultrasonic imaging device, please refer to the content of the ultrasonic imaging method applied to the ultrasonic generating equipment in the above embodiments.

[0159] Figure 8This is a schematic diagram of the structure of an ultrasound imaging device according to an embodiment of the present invention. Figure 8 As shown, the device includes: a first ultrasonic signal transmitting module 610, a first echo signal receiving module 620, and a first echo signal transmitting module 630.

[0160] The first ultrasonic signal transmitting module 610 is used to transmit a first ultrasonic signal to the target object in response to detecting an ultrasonic imaging command sent by the terminal device.

[0161] The first echo signal receiving module 620 is used to receive the first echo signal corresponding to the first ultrasonic signal;

[0162] The first echo signal transmitting module 630 is used to send the first echo signal to the terminal device so that the terminal device can output the target ultrasound image based on the first echo signal.

[0163] The technical solution of this embodiment, in response to the detection of an ultrasound imaging command sent by a terminal device, transmits a first ultrasound signal to the target object, receives a first echo signal corresponding to the first ultrasound signal, and sends the first echo signal to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal. It adopts an interactive imaging method that combines hardware and software, which solves the problem that the ultrasound images output by traditional ultrasound imaging systems contain a lot of noise information, improves the image quality of ultrasound images, and thus reduces the difficulty for doctors to interpret ultrasound images.

[0164] As an optional embodiment, the device further includes:

[0165] The second echo signal transmitting module is used to transmit at least one second ultrasonic signal to the target object in response to the detection of a noise monitoring command sent by the terminal device;

[0166] Receive the second echo signal corresponding to each second ultrasonic signal, and send each second echo signal to the terminal device respectively;

[0167] The center frequency of the spectrum of the first ultrasonic signal is lower than that of the center frequency of the spectrum of the second ultrasonic signal.

[0168] The ultrasound imaging device provided in the embodiments of the present invention can execute the ultrasound imaging method applied to an ultrasound generating device provided in the above embodiments of the present invention, and has the corresponding functional modules and beneficial effects of executing the method.

[0169] Figure 9This is a schematic diagram of a terminal device provided according to one embodiment of the present invention. Terminal device 700 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, mainframe computers, and other suitable computers. Terminal device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0170] like Figure 9 As shown, the terminal device 700 includes at least one processor 71 and a memory, such as a read-only memory (ROM) 72 and a random access memory (RAM) 73, communicatively connected to the at least one processor 71. The memory stores computer programs executable by the at least one processor. The processor 71 can perform various appropriate actions and processes based on the computer program stored in the ROM 72 or loaded from storage unit 78 into the RAM 73. The RAM 73 can also store various programs and data required for the operation of the terminal device 700. The processor 71, ROM 72, and RAM 73 are interconnected via a bus 74. An input / output (I / O) interface 75 is also connected to the bus 74.

[0171] Multiple components in terminal device 700 are connected to I / O interface 75, including: input unit 76, such as keyboard, mouse, etc.; output unit 77, such as various types of monitors, speakers, etc.; storage unit 78, such as disk, optical disk, etc.; and communication unit 79, such as network card, modem, wireless transceiver, etc. Communication unit 79 allows terminal device 700 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0172] Processor 71 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 71 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 71 performs the various methods and processes described above, such as the ultrasound imaging method applied to terminal device 700 provided in the above embodiments.

[0173] In some embodiments, the ultrasound imaging method for terminal device 700 provided in the above embodiments can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 78. In some embodiments, part or all of the computer program can be loaded and / or installed on terminal device 700 via ROM 72 and / or communication unit 79. When the computer program is loaded into RAM 73 and executed by processor 71, one or more steps of the ultrasound imaging method for terminal device 700 described above can be performed. Alternatively, in other embodiments, processor 71 can be configured to perform the ultrasound imaging method for terminal device 700 by any other suitable means (e.g., by means of firmware).

[0174] Figure 10 This is a schematic diagram of the structure of an ultrasonic generating device according to an embodiment of the present invention. The ultrasonic generating device 800 includes an ultrasonic transmitter 810 and an ultrasonic receiver 820.

[0175] The ultrasonic transmitter 810 and ultrasonic receiver 820 are configured to perform the ultrasonic imaging method applied to the ultrasonic generating device 800 provided in the above embodiments. Specifically, the ultrasonic transmitter 810 is used to transmit a first ultrasonic signal to a target object in response to detecting an ultrasonic imaging command sent by a terminal device; the ultrasonic receiver 820 is used to receive a first echo signal corresponding to the first ultrasonic signal and send the first echo signal to the terminal device so that the terminal device outputs a target ultrasonic image based on the first echo signal.

[0176] The ultrasonic transmitter 810 and ultrasonic receiver 820 together constitute an ultrasonic transducer. The ultrasonic transducer is made of piezoelectric crystal. The ultrasonic transmitter 810 works by generating a pulsed electrical signal through a transmitting circuit, converting electrical energy into sound energy through the inverse piezoelectric effect. The ultrasonic receiver 820 works by receiving sound energy through a piezoelectric crystal, converting the sound energy into electrical energy through the direct piezoelectric effect. The effect of a piezoelectric crystal deforming under the influence of an external electric field is called the inverse piezoelectric effect, and the effect of a piezoelectric crystal developing an electric charge under the influence of an external force is called the direct piezoelectric effect.

[0177] Figure 11 This is a schematic diagram of an ultrasound imaging system according to an embodiment of the present invention. The ultrasound imaging system 900 includes a terminal device 700 and an ultrasound generating device 800, which are communicatively connected.

[0178] Figure 12This is a timing diagram of an ultrasound imaging system provided in one embodiment of the present invention. Specifically, 1. Terminal device 700 sends an ultrasound imaging command to ultrasound generating device 800; 2. In response to detecting the ultrasound imaging command, ultrasound generating device 800 transmits a first ultrasound signal to the target object; 3. Ultrasound generating device 800 receives a first echo signal; 4. Ultrasound generating device 800 transmits the first echo signal to terminal device 700; 5. Terminal device 700 sends a noise monitoring command to ultrasound generating device 800; 6. In response to detecting the noise monitoring command, ultrasound generating device 800 transmits at least one second ultrasound signal to the target object; 7. Ultrasound generating device 800 receives at least one second echo signal; 8. Ultrasound generating device 800 transmits each second echo signal to terminal device 700; 9. Terminal device 700 generates an initial ultrasound image based on the first and second echo signals, performs image enhancement operations on the initial ultrasound image, and outputs the target ultrasound image.

[0179] It should be noted that, Figure 12 The order of timings 1-3 and 5-8 in the timing diagram shown can be interchanged.

[0180] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0181] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0182] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0183] To provide interaction with a user, the systems and techniques described herein can be implemented on a terminal device having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the terminal device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0184] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0185] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0186] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0187] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An ultrasound imaging method, characterized in that, Applied to terminal devices, including: In response to the detection of a trigger operation of the imaging control in the visualization interface, an ultrasound imaging command is sent to the ultrasound generating device so that the ultrasound generating device emits a first ultrasound signal toward the target object; Receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generating device; Acquire the system noise signal corresponding to the ultrasonic generator; An initial ultrasound image is generated based on the system noise signal and the first echo signal; Perform image enhancement on the initial ultrasound image to output the target ultrasound image; Wherein, acquiring the system noise signal corresponding to the ultrasonic generator includes: Based on a first duration threshold or a first intensity threshold, obtain the first attenuation signal in the first echo signal; A sampling operation is performed on the first attenuated signal to obtain the system noise signal of the ultrasonic generator; or, A noise monitoring command is sent to the ultrasonic generator so that the ultrasonic generator emits at least one second ultrasonic signal toward the target object; Receive the second echo signals sent by the ultrasonic generating device, which correspond to at least one second ultrasonic signal respectively; Based on a second duration threshold or a second intensity threshold, the second attenuation signal in each of the second echo signals is obtained, and a sampling operation is performed on each of the second attenuation signals to obtain an ultrasonic sampling signal; Based on the ultrasonic sampling signals, the system noise signal of the ultrasonic generating device is determined; Wherein, the center frequency of the spectrum of the first ultrasonic signal is lower than the center frequency of the spectrum of the second ultrasonic signal; The step of generating an initial ultrasound image based on the system noise signal and the first echo signal includes: The system noise signal is subtracted from the first echo signal to obtain a denoised echo signal, and the initial ultrasound image is generated based on the denoised echo signal; or... Based on the system noise signal, a system noise image is generated, and based on the first echo signal, a first ultrasound image is generated. The system noise image is subtracted from the first ultrasound image to obtain the initial ultrasound image.

2. The method according to claim 1, characterized in that, Before acquiring the second attenuation signal in each of the second echo signals based on a second duration threshold or a second intensity threshold, the method further includes: A high-pass filter is used to perform filtering operations on each of the received second echo signals.

3. The method according to claim 1, characterized in that, The step of performing image enhancement operation on the initial ultrasound image and outputting a target ultrasound image includes: A logarithmic transformation operation is performed on the initial ultrasound image to obtain a guiding ultrasound image, and a preset filtering operation is performed on the guiding ultrasound image to obtain a low-frequency ultrasound image; The difference image between the guiding ultrasound image and the low-frequency ultrasound image is used as the high-frequency ultrasound image. Based on the guiding ultrasound image, the low-frequency ultrasound image, and the high-frequency ultrasound image, the target ultrasound image is output.

4. The method according to claim 3, characterized in that, The step of outputting a target ultrasound image based on the guiding ultrasound image, the low-frequency ultrasound image, and the high-frequency ultrasound image includes: The low-frequency ultrasound image and the high-frequency ultrasound image are used as the current low-frequency ultrasound image and the current high-frequency ultrasound image, respectively, and the current filtering parameters corresponding to the current iteration number are obtained. Based on the current filtering parameters and the guided ultrasound image, a guided filtering operation is performed on the current low-frequency ultrasound image to obtain the next low-frequency ultrasound image; The difference image between the current low-frequency ultrasound image and the next low-frequency ultrasound image is used as the next high-frequency ultrasound image. The next low-frequency ultrasound image and the next high-frequency ultrasound image are respectively used as the current low-frequency ultrasound image and the current high-frequency ultrasound image, and the step of obtaining the current filtering parameters corresponding to the current iteration number is iteratively executed. When the current iteration count reaches a preset threshold, a target ultrasound image is output based on each of the low-frequency ultrasound images and each of the high-frequency ultrasound images.

5. The method according to claim 4, characterized in that, The step of outputting a target ultrasound image based on each of the low-frequency ultrasound images and each of the high-frequency ultrasound images includes: Obtain the image variance corresponding to each of the high-frequency ultrasound images, and determine the high-frequency weight corresponding to each of the high-frequency ultrasound images based on the image variance. The high-frequency ultrasound image corresponding to the largest image variance is taken as the target high-frequency ultrasound image, and the low-frequency ultrasound image corresponding to the target high-frequency ultrasound image is taken as the target low-frequency ultrasound image. Based on the target low-frequency ultrasound image and the preset Gaussian distribution, determine the low-frequency weights corresponding to each of the low-frequency ultrasound images. Based on the high-frequency weights and low-frequency weights, a weighted summation operation is performed on the low-frequency ultrasound images and the high-frequency ultrasound images to output the target ultrasound image.

6. An ultrasound imaging method, characterized in that, Applications in ultrasonic generating equipment, including: In response to detecting an ultrasound imaging command sent by a terminal device, a first ultrasound signal is emitted toward the target object; Receive the first echo signal corresponding to the first ultrasonic signal; The first echo signal is sent to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal; The terminal device outputs a target ultrasound image based on the first echo signal, including: Acquire the system noise signal corresponding to the ultrasonic generator; An initial ultrasound image is generated based on the system noise signal and the first echo signal; Perform image enhancement on the initial ultrasound image to output the target ultrasound image; Wherein, acquiring the system noise signal corresponding to the ultrasonic generator includes: Based on a first duration threshold or a first intensity threshold, obtain the first attenuation signal in the first echo signal; A sampling operation is performed on the first attenuated signal to obtain the system noise signal of the ultrasonic generator; or, A noise monitoring command is sent to the ultrasonic generator so that the ultrasonic generator emits at least one second ultrasonic signal toward the target object; Receive the second echo signals sent by the ultrasonic generating device, which correspond to at least one second ultrasonic signal respectively; Based on a second duration threshold or a second intensity threshold, the second attenuation signal in each of the second echo signals is obtained, and a sampling operation is performed on each of the second attenuation signals to obtain an ultrasonic sampling signal; Based on the ultrasonic sampling signals, the system noise signal of the ultrasonic generating device is determined; Wherein, the center frequency of the spectrum of the first ultrasonic signal is lower than the center frequency of the spectrum of the second ultrasonic signal; The step of generating an initial ultrasound image based on the system noise signal and the first echo signal includes: The system noise signal is subtracted from the first echo signal to obtain a denoised echo signal, and the initial ultrasound image is generated based on the denoised echo signal; or... Based on the system noise signal, a system noise image is generated, and based on the first echo signal, a first ultrasound image is generated. The system noise image is subtracted from the first ultrasound image to obtain the initial ultrasound image.

7. The method according to claim 6, characterized in that, The method further includes: In response to detecting a noise monitoring command sent by a terminal device, at least one second ultrasonic signal is emitted toward the target object; The system receives the second echo signal corresponding to each of the second ultrasonic signals and sends each of the second echo signals to the terminal device.

8. An ultrasonic imaging device, characterized in that, Applied to terminal devices, including: An ultrasound imaging command sending module is used to send an ultrasound imaging command to an ultrasound generating device in response to a trigger operation of an imaging control in a visualization interface, so that the ultrasound generating device emits a first ultrasound signal toward a target object. The first echo signal receiving module is used to receive the first echo signal corresponding to the first ultrasonic signal sent by the ultrasonic generating device; The target ultrasound image output module is used to generate an initial ultrasound image based on the first echo signal, perform image enhancement operation on the initial ultrasound image, and output a target ultrasound image. The target ultrasound image output module includes: A system noise signal acquisition unit is used to acquire the system noise signal corresponding to the ultrasonic generator; An initial ultrasound image generation unit is used to generate an initial ultrasound image based on the system noise signal and the first echo signal; The system noise signal acquisition unit includes: The first system noise signal acquisition subunit is used to acquire the first attenuation signal in the first echo signal based on a first duration threshold or a first intensity threshold. A sampling operation is performed on the first attenuated signal to obtain the system noise signal of the ultrasonic generator; The system noise signal acquisition unit also includes: The second system noise signal acquisition subunit is used to send a noise monitoring command to the ultrasonic generator so that the ultrasonic generator emits at least one second ultrasonic signal toward the target object. Receive the second echo signals sent by the ultrasonic generating device, which correspond to at least one second ultrasonic signal respectively; Based on a second duration threshold or a second intensity threshold, the second attenuation signal in each of the second echo signals is obtained, and a sampling operation is performed on each of the second attenuation signals to obtain an ultrasonic sampling signal; Based on the ultrasonic sampling signals, the system noise signal of the ultrasonic generating device is determined; Wherein, the center frequency of the spectrum of the first ultrasonic signal is lower than the center frequency of the spectrum of the second ultrasonic signal; The initial ultrasound image generation unit is specifically used for: The system noise signal is subtracted from the first echo signal to obtain a denoised echo signal, and the initial ultrasound image is generated based on the denoised echo signal; or... Based on the system noise signal, a system noise image is generated, and based on the first echo signal, a first ultrasound image is generated. The system noise image is subtracted from the first ultrasound image to obtain the initial ultrasound image.

9. An ultrasonic imaging device, characterized in that, Applications in ultrasonic generating equipment, including: The first ultrasonic signal transmitting module is used to transmit a first ultrasonic signal to the target object in response to detecting an ultrasonic imaging command sent by the terminal device; The first echo signal receiving module is used to receive the first echo signal corresponding to the first ultrasonic signal; The first echo signal transmitting module is used to transmit the first echo signal to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal. The terminal device outputs a target ultrasound image based on the first echo signal, including: Acquire the system noise signal corresponding to the ultrasonic generator; An initial ultrasound image is generated based on the system noise signal and the first echo signal; Perform image enhancement on the initial ultrasound image to output the target ultrasound image; Wherein, acquiring the system noise signal corresponding to the ultrasonic generator includes: Based on a first duration threshold or a first intensity threshold, obtain the first attenuation signal in the first echo signal; A sampling operation is performed on the first attenuated signal to obtain the system noise signal of the ultrasonic generator; or, A noise monitoring command is sent to the ultrasonic generator so that the ultrasonic generator emits at least one second ultrasonic signal toward the target object; Receive the second echo signals sent by the ultrasonic generating device, which correspond to at least one second ultrasonic signal respectively; Based on a second duration threshold or a second intensity threshold, the second attenuation signal in each of the second echo signals is obtained, and a sampling operation is performed on each of the second attenuation signals to obtain an ultrasonic sampling signal; Based on the ultrasonic sampling signals, the system noise signal of the ultrasonic generating device is determined; Wherein, the center frequency of the spectrum of the first ultrasonic signal is lower than the center frequency of the spectrum of the second ultrasonic signal; The step of generating an initial ultrasound image based on the system noise signal and the first echo signal includes: The system noise signal is subtracted from the first echo signal to obtain a denoised echo signal, and the initial ultrasound image is generated based on the denoised echo signal; or... Based on the system noise signal, a system noise image is generated, and based on the first echo signal, a first ultrasound image is generated. The system noise image is subtracted from the first ultrasound image to obtain the initial ultrasound image.

10. A terminal device, characterized in that, The terminal device includes: At least one processor; and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the ultrasound imaging method according to any one of claims 1-5.

11. An ultrasonic generating device, characterized in that, The ultrasonic generating device includes: an ultrasonic transmitter and an ultrasonic receiver; The ultrasonic transmitter is used to transmit a first ultrasonic signal toward the target object in response to detecting an ultrasonic imaging command sent by the terminal device; The ultrasound receiver is used to receive a first echo signal corresponding to the first ultrasound signal and send the first echo signal to the terminal device so that the terminal device outputs a target ultrasound image based on the first echo signal. The terminal device outputs a target ultrasound image based on the first echo signal, including: Acquire the system noise signal corresponding to the ultrasonic generator; An initial ultrasound image is generated based on the system noise signal and the first echo signal; Perform image enhancement on the initial ultrasound image to output the target ultrasound image; Wherein, acquiring the system noise signal corresponding to the ultrasonic generator includes: Based on a first duration threshold or a first intensity threshold, obtain the first attenuation signal in the first echo signal; A sampling operation is performed on the first attenuated signal to obtain the system noise signal of the ultrasonic generator; or, A noise monitoring command is sent to the ultrasonic generator so that the ultrasonic generator emits at least one second ultrasonic signal toward the target object; Receive the second echo signals sent by the ultrasonic generating device, which correspond to at least one second ultrasonic signal respectively; Based on a second duration threshold or a second intensity threshold, the second attenuation signal in each of the second echo signals is obtained, and a sampling operation is performed on each of the second attenuation signals to obtain an ultrasonic sampling signal; Based on the ultrasonic sampling signals, the system noise signal of the ultrasonic generating device is determined; Wherein, the center frequency of the spectrum of the first ultrasonic signal is lower than the center frequency of the spectrum of the second ultrasonic signal; The step of generating an initial ultrasound image based on the system noise signal and the first echo signal includes: The system noise signal is subtracted from the first echo signal to obtain a denoised echo signal, and the initial ultrasound image is generated based on the denoised echo signal; or... Based on the system noise signal, a system noise image is generated, and based on the first echo signal, a first ultrasound image is generated. The system noise image is subtracted from the first ultrasound image to obtain the initial ultrasound image.

12. An ultrasound imaging system, characterized in that, include: A terminal device and an ultrasound generating device, wherein the terminal device and the ultrasound generating device are communicatively connected; The terminal device is the terminal device according to claim 10, and the ultrasonic generating device is the ultrasonic generating device according to claim 11.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute and implement the ultrasound imaging method of any one of claims 1-5, and / or the ultrasound imaging method of any one of claims 6-7.

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