Ultrasonic color imaging method, system, device, computing device and readable medium

Abstract

The present application provides an ultrasonic color imaging method, system, apparatus, computing device and computer-readable medium. The method includes: receiving multiple ultrasonic receiving signals provided by an ultrasonic transducer, wherein the center frequencies of the multiple ultrasonic receiving signals are different from each other; dividing the multiple ultrasonic receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; and using each group of ultrasonic receiving signals as a component of one of the channels of the preset color mode and generating a color image according to the preset color mode. The method generates a color image by using multiple ultrasonic receiving signals with different center frequencies as channel components of the color mode, which can make full use of the color perceptible space of the human eye to more completely and accurately reflect the information of the target object, and the required calculation amount is low, the hardware performance requirements are low, and it is more suitable for clinical applications.

Description

Technical Field

[0001] The present application mainly relates to the field of ultrasound imaging technology, and in particular to an ultrasound color imaging method, system, device, computing device and computer-readable medium. Background Art

[0002] At present, the transmitted signals of ultrasound are all pulse signals with a certain bandwidth at a certain center frequency. Ultrasonic imaging of different spectra reflects different information about the target object. However, the bandwidth of the spectrum of the ultrasonic signal emitted by the existing ultrasonic transducer at a certain moment is often limited. In order to obtain as much ultrasonic imaging information of different spectra as possible, the existing technology uses frequency compounding, that is, emitting multiple ultrasonic signals with different center frequencies and different bandwidths, adding the ultrasonic imaging data obtained from each, and then displaying them, thereby representing the ultrasonic information of multiple spectra.

[0003] However, in the frequency compound imaging method, on the one hand, each transmitted signal often only covers as wide a spectrum as possible to obtain as much information as possible, and the correlation between each signal is very limited; on the other hand, each ultrasonic data obtained is simply superimposed for display, which is a lossy process for the information contained in the data itself, and the information contained in each spectrum cannot be fully displayed. Summary of the invention

[0004] The technical problem to be solved by the present application is to provide an ultrasonic color imaging method, system, apparatus, computing device and computer-readable medium that can more completely and accurately reflect the information of the target object.

[0005] To solve the above technical problems, in the first aspect of the present application, an ultrasonic color imaging method is provided, comprising: receiving a plurality of ultrasonic receiving signals provided by an ultrasonic transducer, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other; dividing the plurality of ultrasonic receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; and using each group of ultrasonic receiving signals as a component of one of the channels of a preset color mode and generating a color image according to the preset color mode.

[0006] Optionally, the ultrasound receiving signal is a reflected signal of the ultrasound transmitting signal having the same center frequency.

[0007] Optionally, the preset color mode is a red, green, and blue color mode, the number of channels of the preset color mode is 3, and the preset number is 3.

[0008] Optionally, the number of the plurality of ultrasound receiving signals is greater than or equal to the number of channels of a preset color mode.

[0009] Optionally, the number of ultrasound receiving signals in each group of ultrasound receiving signals is equal.

[0010] Optionally, there is overlap between frequency spectra of signals with adjacent center frequencies among the plurality of ultrasound reception signals.

[0011] Optionally, after the frequency spectra of the multiple ultrasonic receiving signals are superimposed in the frequency domain, the difference between the amplitude of the frequency component with the highest amplitude and the amplitude of the frequency component with the lowest amplitude is less than or equal to 20%.

[0012] Optionally, the method further includes: adjusting the dynamic range of the plurality of ultrasound receiving signals.

[0013] Optionally, the frequency spectrum range covered by the multiple ultrasound receiving signals covers 80% or more of the frequency spectrum range that can be imaged by the ultrasound transducer.

[0014] In a second aspect of the present application, an ultrasonic color imaging system is provided, comprising: a signal receiving module for receiving a plurality of ultrasonic receiving signals, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other; a grouping module for grouping the plurality of ultrasonic receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; and an image generating module for treating each group of ultrasonic receiving signals as a component of one of the channels of a preset color mode and generating a color image according to the preset color mode.

[0015] In a third aspect of the present application, an ultrasonic color imaging device is provided, comprising: an ultrasonic transducer for receiving a plurality of ultrasonic receiving signals, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other; a memory for storing the ultrasonic receiving signals; a processor for collecting the ultrasonic receiving signals received by the ultrasonic transducer and transmitting them to the memory; dividing the plurality of ultrasonic receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; and using each group of ultrasonic receiving signals as a component of one of the channels of a preset color mode and generating a color image according to the preset color mode; and a display for displaying the color image.

[0016] Optionally, the ultrasonic transducer is also used to transmit multiple ultrasonic transmit signals, wherein the ultrasonic receive signal is a reflected signal of the ultrasonic transmit signal having the same center frequency; the processor is also used to convert the ultrasonic parameters of the ultrasonic transmit signal into an electrical signal that can be used by the ultrasonic transducer; and the processor is also used to define the ultrasonic transmit signal.

[0017] Optionally, the preset color mode is a red, green, and blue color mode, the number of channels of the preset color mode is 3, and the preset number is 3.

[0018] Optionally, the number of the plurality of ultrasound receiving signals is greater than or equal to the number of channels of a preset color mode.

[0019] Optionally, the number of ultrasound receiving signals in each group of ultrasound receiving signals is equal.

[0020] Optionally, there is overlap between frequency spectra of signals with adjacent center frequencies among the plurality of ultrasound reception signals.

[0021] Optionally, after the frequency spectra of the multiple ultrasonic receiving signals are superimposed in the frequency domain, the difference between the amplitude of the frequency component with the highest amplitude and the amplitude of the frequency component with the lowest amplitude is less than or equal to 20%.

[0022] Optionally, the processor is further configured to adjust a dynamic range of the plurality of ultrasound receiving signals.

[0023] Optionally, the frequency spectrum range covered by the multiple ultrasound receiving signals is equal to 80% or more of the frequency spectrum range that can be imaged by the ultrasound transducer.

[0024] In a fourth aspect of the present application, a computing device is provided. The computing device includes a memory and a processor. A computer program is stored in the memory. When the computer program is executed by the processor, the computing device executes the ultrasound color imaging method as described above.

[0025] In a fifth aspect of the present application, a computer readable medium storing a computer program code is provided. When the computer program code is executed by a processor, the ultrasound color imaging method as described above is implemented.

[0026] Compared with the prior art, this application has the following advantages:

[0027] By using multiple ultrasound receiving signals with different center frequencies as channel components of the color mode to generate a color image, the color perceptible space of the human eye can be fully utilized to more completely and accurately reflect the information of the target object. The required computational effort and hardware performance requirements are low, making it more suitable for clinical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:

[0029] Figure 1 is a block diagram of an ultrasonic color imaging device according to an embodiment of the present application.

[0030] Figure 2-4 is an example diagram of an ultrasound receiving signal according to an embodiment of the present application.

[0031] Figure 5 This is an imaging effect diagram of frequency compound imaging in the prior art.

[0032] Figure 6 This is an imaging effect diagram of ultrasonic color imaging according to an embodiment of the present application.

[0033] Figure 7 is a flow chart of an ultrasonic color imaging method according to an embodiment of the present application.

[0034] Figure 8 is a block diagram of an ultrasound color imaging system according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0036] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] Flowcharts are used in the present application to illustrate the operations performed by the system according to the embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, various steps may be processed in reverse order or simultaneously. At the same time, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0039] Figure 1FIG. 1 is a block diagram of an ultrasonic color imaging device according to an embodiment of the present application. Figure 1 As shown, the ultrasound color imaging device 100 includes an ultrasound transducer 10, a memory 20, a processor 30, and a display 40. In some embodiments, the processor 30 may be composed of one or more processors.

[0040] The ultrasonic transducer 10 is used to receive multiple ultrasonic receiving signals, wherein the center frequencies of the multiple ultrasonic receiving signals are different from each other. The parameters of the ultrasonic receiving signal include the center frequency and the bandwidth. The center frequencies of the multiple ultrasonic receiving signals are different from each other, so that after the multiple ultrasonic receiving signals are superimposed, compared with a single signal or multiple signals with the same center frequency, they can cover a wider spectrum range and can more completely reflect the information of the target object. Figure 2-4 is an example diagram of an ultrasound receiving signal according to an embodiment of the present application. Figure 2 The center frequency of the first ultrasonic receiving signal is 5.5 MHz, and the bandwidth is 4 MHz to 7 MHz; Figure 3 The center frequency of the second ultrasonic receiving signal is 7.5 MHz, and the bandwidth is 5.5 MHz to 9.5 MHz; Figure 4 The center frequency of the third ultrasonic receiving signal in the embodiment is 9 MHz, and the bandwidth is 7 MHz to 11 MHz. The first ultrasonic receiving signal, the second ultrasonic receiving signal, and the third ultrasonic receiving signal have different center frequencies, so that they can cover a wider spectrum range after being superimposed.

[0041] Optionally, the ultrasonic transducer 10 can also be used to transmit multiple ultrasonic transmission signals. After transmitting the ultrasonic transmission signal, the ultrasonic transducer 10 will receive ultrasonic reception signals corresponding to the multiple ultrasonic transmission signals one by one, that is, the ultrasonic reception signal is a reflection signal of the ultrasonic transmission signal with the same center frequency. Therefore, corresponding to the ultrasonic reception signal, the multiple ultrasonic transmission signals transmitted by the ultrasonic transducer 10 also have different center frequencies. Converting the ultrasonic parameters of the ultrasonic transmission signal into an electrical signal that can be used by the ultrasonic transducer 10, and defining the ultrasonic transmission signal, can be performed by the processor 30.

[0042] Optionally, the frequency spectra of the signals with adjacent center frequencies among the multiple ultrasound receiving signals overlap. Because the frequency response curve has a shape, such as a normal distribution or a shape of a frequency domain window, the frequency spectra of the signals may overlap. The frequency spectra of each ultrasound receiving signal overlap with the frequency spectra of the ultrasound receiving signals adjacent to its center frequency. Figure 2-4Taking the ultrasonic receiving signal in as an example, the center frequencies of the first, second and third ultrasonic receiving signals are 5.5MHz, 7.5MHz and 9MHz respectively. Therefore, the signal whose center frequency is close to the first ultrasonic receiving signal is the second ultrasonic receiving signal; the signal whose center frequency is close to the second ultrasonic receiving signal is the first and third ultrasonic receiving signals; the signal whose center frequency is close to the third ultrasonic receiving signal is the second ultrasonic receiving signal. In other words, there is an overlap between the frequency spectra of the first ultrasonic receiving signal and the second ultrasonic receiving signal; the second ultrasonic receiving signal overlaps with the frequency spectra of the first and third ultrasonic receiving signals respectively; and there is an overlap between the frequency spectra of the third ultrasonic receiving signal and the second ultrasonic receiving signal. When there is an overlap between the frequency spectra of ultrasonic receiving signals with adjacent center frequencies, the frequency spectra covered by the frequency spectra of multiple ultrasonic receiving signals after superposition in the frequency domain are continuous, and the amplitude difference of each frequency component is smaller, thereby ensuring that the response of the target object is observed through each frequency under closer conditions, so that the observation of the target object is more accurate.

[0043] Optionally, after the frequency spectra of multiple ultrasonic receiving signals are superimposed in the frequency domain, the difference between the amplitude of the frequency component with the highest amplitude and the amplitude of the frequency component with the lowest amplitude is less than or equal to 20%. When the difference between the amplitude of the frequency component with the highest amplitude and the amplitude of the frequency component with the lowest amplitude is less than or equal to 20% after the frequency spectra of the ultrasonic receiving signals are superimposed, it can be said that the amplitudes are similar at each frequency component. In daily life, people usually observe objects under white light, and the spectrum of white light is flat, that is, the spectrum of white light has the same amplitude at each frequency component. Therefore, under normal circumstances, the closer the spectrum of the ultrasonic receiving signals after superposition is to flatness, the more real and accurate the observation effect of the target is. Preferably, when the spectrum of the ultrasonic receiving signals after superposition has the same amplitude at each frequency component, that is, when the superimposed spectrum is flat, the observation effect of the target is best.

[0044] Optionally, the spectrum range covered by the multiple ultrasonic receiving signals is equal to 80% or more of the spectrum range that the ultrasonic transducer 10 can image. The wider the spectrum range covered by the multiple ultrasonic receiving signals, the more information that can be obtained, and the better the observation effect of the target. However, each ultrasonic transducer 10 has a limit on the frequency that it can transmit and receive, and only ultrasonic receiving signals within this limited range can be used for imaging. When the spectrum range covered by the superposition of ultrasonic receiving signals is equal to 80% or more of the spectrum range that the ultrasonic transducer 10 can image, it can be considered that the ultrasonic receiving signal covers a wider range and can obtain a more comprehensive and accurate observation effect.

[0045] The processor 30 is used to collect the ultrasonic reception signal received by the ultrasonic transducer 10 and transmit the signal to the memory 20 for storage.

[0046] The memory 20 is used to store the ultrasound receiving signal transmitted from the processor 30 .

[0047] The processor 30 is further configured to group the received multiple ultrasound reception signals into a preset number of groups, wherein the preset number is equal to the number of channels of the preset color mode. Optionally, the preset color mode may be a red, green, and blue (RGB) mode. When the preset color mode is the RGB mode, the number of channels is 3, and thus the preset number of ultrasound reception signal groups is also 3. The preset color mode may also be a color mode such as a printing color (CMYK) mode, which is not limited in the present application.

[0048] Optionally, the number of multiple ultrasound receiving signals is greater than or equal to the number of channels of the preset color mode. In this way, when the same ultrasound receiving signal is not repeated as a component of different channels, each channel of the preset color mode can have at least one ultrasound receiving signal as a channel component, so that the color image generated by the preset color mode is more complete, and the observation effect of the target is more comprehensive and accurate. Taking the aforementioned RGB mode as an example, the number of RGB mode channels is 3, and the number of ultrasound receiving signals can be 3.

[0049] Optionally, the number of ultrasonic receiving signals in each group of ultrasonic receiving signals is equal. That is to say, when a plurality of ultrasonic receiving signals are divided into a preset number of groups, the number of ultrasonic receiving signals assigned to each group is the same. Such grouping can display the information of the entire spectrum in a visual manner that is closer to that acceptable to the human eye, the color image generated by the preset color mode is more complete, and the observation effect of the target is more comprehensive and accurate. In addition, it is obvious that when the same ultrasonic receiving signal is not repeated as a component of different channels, the equal number of ultrasonic receiving signals in each group of ultrasonic receiving signals means that the number of multiple ultrasonic receiving signals is a positive integer multiple of the number of channels of the preset color mode. Still taking the aforementioned RGB mode as an example, the number of ultrasonic receiving signals is 3, and the ultrasonic receiving signals are divided into 3 groups, then the number of ultrasonic receiving signals in each group is 1.

[0050] Optionally, the dynamic range of the multiple ultrasound receiving signals is adjusted. By adjusting the dynamic range of the multiple ultrasound receiving signals, the dynamic range of each ultrasound receiving signal can be made more consistent with the corresponding observation requirements, such as meeting the visualization requirements of the human eye, thereby improving the integrity and accuracy of the target observation. The present application does not limit the method for adjusting the dynamic range of the ultrasound receiving signal.

[0051] The processor 30 is further configured to use each group of ultrasound receiving signals as a component of one of the channels of a preset color mode and generate a color image according to the preset color mode. Figure 5 This is an imaging effect diagram of frequency compound imaging in the prior art. Figure 6 This is an imaging effect diagram of ultrasonic color imaging according to an embodiment of the present application. Figure 5 and Figure 6 The ultrasound receiving signal used in the imaging is the aforementioned Figure 2-4 The first, second and third ultrasonic receiving signals in Figure 5 compared to, Figure 6 The information contained is obviously more and more comprehensive. By directly using the ultrasound receiving signal as the channel component of the preset color mode to generate a color image, the color perceptible space of the human eye can be fully utilized to fully display the information in the ultrasound receiving signal, and the required calculation amount is low, the hardware performance requirements are low, and it is more suitable for clinical applications.

[0052] Finally, the display 40 displays the color image obtained above for the user to observe the target.

[0053] In summary, the ultrasound color imaging device in the embodiment of the present application generates a color image by using multiple ultrasound receiving signals with different center frequencies as channel components of the color mode, which can fully utilize the color perceptible space of the human eye to more completely and accurately reflect the information of the observed target. In addition, the device has low computational requirements and hardware performance requirements for generating color images, and is very suitable for clinical applications.

[0054] The present application also provides an ultrasound color imaging method, which will now be referred to Figure 7 Provide explanation. Figure 7 is a flowchart of the ultrasound color imaging method according to an embodiment of the present application, which may correspond to Figure 1 Embodiment of the ultrasonic color imaging device. Figure 7 As shown, the ultrasound color imaging method includes:

[0055] Step 701, receiving a plurality of ultrasonic receiving signals provided by an ultrasonic transducer, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other;

[0056] Step 702, dividing a plurality of ultrasound receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; and

[0057] Step 703: Use each group of ultrasound receiving signals as a component of one of the channels of the preset color mode and generate a color image according to the preset color mode.

[0058] Step 701 can refer to Figure 1 For the description of the ultrasonic transducer part in the embodiment of FIG. 700 , steps 702 and 703 may refer to Figure 1 The description of the processor part in the embodiment will not be repeated here.

[0059] The present application also provides an ultrasound color imaging system, which will now be referred to Figure 8 Provide explanation. Figure 8FIG. 8 is a block diagram of an ultrasound color imaging system according to an embodiment of the present application. The ultrasound color imaging system 800 can be used to perform the ultrasound color imaging method described above. Figure 8 As shown, the ultrasound color imaging system 800 includes:

[0060] A signal receiving module 810 is used to receive a plurality of ultrasonic receiving signals, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other;

[0061] A grouping module 820, configured to group the plurality of ultrasound receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of the preset color mode; and

[0062] The image generation module 830 is used to use each group of ultrasound receiving signals as a component of one channel of a preset color mode and generate a color image according to the preset color mode.

[0063] like Figure 8 As shown, the ultrasound color imaging system 800 may further include a dynamic range module 840 for adjusting the dynamic range of the plurality of ultrasound receiving signals.

[0064] The present application also provides a computer-readable medium storing a computer program code, and when the computer program code is executed by a processor, the ultrasound color imaging method as described above is implemented.

[0065] When the ultrasound color imaging method is implemented as a computer program, it can also be stored in a computer-readable storage medium as a product. For example, a computer-readable storage medium may include, but is not limited to, a magnetic storage device (e.g., a hard disk, a floppy disk, a magnetic strip), an optical disk (e.g., a compact disk (CD), a digital versatile disk (DVD)), a smart card, and a flash memory device (e.g., an electrically erasable programmable read-only memory (EPROM), a card, a stick, a key drive). In addition, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media (and / or storage media) that can store, contain and / or carry code and / or instructions and / or data.

[0066] The basic concepts have been described above. Obviously, for those skilled in the art, the above application disclosure is only an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0067] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0068] Some aspects of the present application may be performed entirely by hardware, entirely by software (including firmware, resident software, microcode, etc.), or by a combination of hardware and software. The above hardware or software may be referred to as "data blocks", "modules", "engines", "units", "components" or "systems". The processor may be one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DAPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or combinations thereof. In addition, various aspects of the present application may be expressed as computer products located in one or more computer-readable media, which include computer-readable program codes. For example, computer-readable media may include, but are not limited to, magnetic storage devices (e.g., hard disks, floppy disks, tapes ...), optical disks (e.g., compact disks CDs, digital versatile disks DVDs ...), smart cards, and flash memory devices (e.g., cards, sticks, key drives ...).

[0069] A computer-readable medium may include a propagated data signal containing computer program code, such as in baseband or as part of a carrier wave. The propagated signal may have a variety of manifestations, including electromagnetic, optical, etc., or a suitable combination. A computer-readable medium may be any computer-readable medium other than a computer-readable storage medium, which may be connected to an instruction execution system, device or apparatus to communicate, propagate or transmit a program for use. The program code on the computer-readable medium may be propagated via any suitable medium, including radio, cable, fiber optic cable, radio frequency signal, or similar medium, or any combination of the above mediums.

[0070] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0071] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0072] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A method for color ultrasound imaging, comprising: Receiving a plurality of ultrasonic receiving signals provided by an ultrasonic transducer, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other, and the frequency spectrum range covered by the plurality of ultrasonic receiving signals covers 80% or more of the frequency spectrum range that the ultrasonic transducer can image; dividing the plurality of ultrasound receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; as well as Each group of ultrasound receiving signals is used as a component of one channel of the preset color mode and a color image is generated according to the preset color mode; wherein, The number of channels of the preset color mode is 3, and the preset number is 3.

2. The method according to claim 1, characterized in that The ultrasonic receiving signal is a reflected signal of the ultrasonic transmitting signal having the same center frequency.

3. The method according to claim 1, characterized in that The preset color mode is a red, green and blue color mode.

4. The method according to claim 1, characterized in that The number of the plurality of ultrasound receiving signals is greater than or equal to the number of channels of the preset color mode.

5. The method according to claim 1 or 4, characterized in that The number of ultrasound receiving signals in each group of ultrasound receiving signals is equal.

6. The method according to claim 1, characterized in that There is overlap between the frequency spectra of signals with adjacent center frequencies among the plurality of ultrasound receiving signals.

7. The method according to claim 6, characterized in that After the frequency spectra of the multiple ultrasonic receiving signals are superimposed in the frequency domain, the difference between the amplitude of the frequency component with the highest amplitude and the amplitude of the frequency component with the lowest amplitude is less than or equal to 20%.

8. The method according to claim 1, characterized in that Also includes: The dynamic range of the plurality of ultrasound receiving signals is adjusted.

9. An ultrasonic color imaging system, comprising: A signal receiving module, used for receiving a plurality of ultrasound receiving signals, wherein the center frequencies of the plurality of ultrasound receiving signals are different from each other, and the frequency spectrum range covered by the plurality of ultrasound receiving signals covers 80% or more of the frequency spectrum range that the ultrasound transducer can image; a grouping module, configured to group the plurality of ultrasound receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; as well as The image generation module is used to use each group of ultrasound receiving signals as a component of one of the channels of the preset color mode and generate a color image according to the preset color mode.

10. An ultrasonic color imaging device, comprising: An ultrasonic transducer, configured to receive a plurality of ultrasonic receiving signals, wherein the center frequencies of the plurality of ultrasonic receiving signals are different from each other, and the frequency spectrum range covered by the plurality of ultrasonic receiving signals covers 80% or more of the frequency spectrum range capable of imaging by the ultrasonic transducer; A memory, used for storing the ultrasonic receiving signal; A processor, configured to collect the ultrasonic receiving signals received by the ultrasonic transducer and transmit them to the memory; divide the plurality of ultrasonic receiving signals into a preset number of groups, wherein the preset number is equal to the number of channels of a preset color mode; and using each group of ultrasound receiving signals as a component of one of the channels of the preset color mode and generating a color image according to the preset color mode; as well as A display, used to display the color image; wherein, The number of channels of the preset color mode is 3, and the preset number is 3.

11. The device according to claim 10, characterized in that The ultrasonic transducer is also used to transmit multiple ultrasonic transmit signals, wherein the ultrasonic receive signal is a reflected signal of the ultrasonic transmit signal having the same center frequency; the processor is also used to convert the ultrasonic parameters of the ultrasonic transmit signal into an electrical signal that can be used by the ultrasonic transducer; and the processor is also used to define the ultrasonic transmit signal.

12. The device according to claim 10, characterized in that in, The preset color mode is a red, green and blue color mode.

13. The device according to claim 10, characterized in that in, The number of the plurality of ultrasound receiving signals is greater than or equal to the number of channels of the preset color mode.

14. The device according to claim 10 or 13, characterized in that in, The number of ultrasound receiving signals in each group of ultrasound receiving signals is equal.

15. The device according to claim 10, characterized in that in, There is overlap between the frequency spectra of signals with adjacent center frequencies among the plurality of ultrasound receiving signals.

16. The device according to claim 15, characterized in that in, After the frequency spectra of the multiple ultrasonic receiving signals are superimposed in the frequency domain, the difference between the amplitude of the frequency component with the highest amplitude and the amplitude of the frequency component with the lowest amplitude is less than or equal to 20%.

17. The device according to claim 10, characterized in that The processor is further configured to adjust the dynamic range of the plurality of ultrasound receiving signals.

18. A computing device, comprising a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the computing device executes the method according to any one of claims 1 to 8.

19. A computer readable medium storing computer program code, wherein the computer program code, when executed by a processor, implements the method according to any one of claims 1 to 8.

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