An ultrasonic phased array full focus imaging method and related apparatus

Abstract

The application discloses an ultrasonic phased array full-focus imaging method and related equipment, which is applied to an ultrasonic phased array instrument, the ultrasonic phased array instrument comprises independent channels and extended channels, and the imaging method comprises the following steps: determining the excitation timing and the receiving timing of each wafer of an array probe in the ultrasonic phased array instrument according to the number of the extended channels and the number of the independent channels; the number of the extended channels is greater than the number of the independent channels; controlling the excitation of each wafer of the array probe according to the excitation timing and controlling the data acquisition of each wafer of the array probe according to the receiving timing; synthesizing full-matrix acquisition data according to all the data acquired by each wafer of the array probe, and determining full-focus imaging through a full-focus algorithm based on the full-matrix acquisition data. The embodiment of the application can improve the detection resolution. The application can be widely applied to the field of nondestructive testing.

Description

Technical Field

[0001] This application relates to the field of nondestructive testing technology, and in particular to an ultrasonic phased array full-focusing imaging method and related equipment. Background Technology

[0002] Ultrasonic phased array technology represents a trend in ultrasonic testing technology development. Currently, it is widely and maturely applied across various industries. However, low defect measurement accuracy has always been a challenge for ultrasonic phased array technology. In recent years, full-matrix acquisition and full-focusing imaging technologies using ultrasonic phased arrays have matured. Full-focusing technology can significantly improve defect measurement accuracy and enhance the reliability of ultrasonic testing technology. Full-matrix acquisition of ultrasonic phased arrays is an advanced data acquisition method. It sequentially excites each crystal in the array, and all crystals receive the echo signals, thereby obtaining complete acoustic field information. This provides a data foundation for subsequent advanced imaging and quantitative defect analysis.

[0003] Ultrasonic phased array instruments have multiple independent channels and multiple extended channels. For example, a 64 / 128 device has 64 independent channels and 128 extended channels. When using full-matrix acquisition full-focusing imaging technology, the maximum acquisition aperture cannot exceed 64, and the number of array probe crystals supported cannot exceed 64. Limited by the number of independent channels, probes with more crystals cannot be used, or all crystals of a large probe cannot be fully utilized. High-resolution full-focusing imaging quality is directly proportional to the number of crystals involved in the acquisition. To obtain high-resolution imaging, probes with more crystals are required. Current technology cannot support probes with more crystals than their number of independent channels for FMC (Full Matrix Capture) acquisition, which severely restricts the improvement of detection resolution. Current technology requires the use of ultrasonic phased array instrument main units with more independent channels, greatly increasing instrument costs. Summary of the Invention

[0004] The main objective of this application is to propose an ultrasonic phased array full-focusing imaging method and related equipment, which can improve detection resolution and achieve imaging effects that can only be achieved by high-cost ultrasonic phased array instruments using low-cost ultrasonic phased array instruments.

[0005] To achieve the above objectives, one aspect of this application proposes an ultrasonic phased array full-focusing imaging method, applied to an ultrasonic phased array instrument, wherein the ultrasonic phased array instrument includes independent channels and extended channels, and the method includes the following steps: The excitation and reception timing of each crystal in the array probe of the ultrasonic phased array instrument are determined based on the number of extended channels and the number of independent channels; the number of extended channels is greater than the number of independent channels. The excitation timing control array probe is based on the excitation of each chip, and the receiving timing control array probe is based on the data acquisition of each chip; The full matrix acquisition data is synthesized based on all the data collected by each chip of the array probe, and the full-focus imaging is determined by the full-focusing algorithm based on the full matrix acquisition data.

[0006] In some embodiments, the extended channel is connected to the independent channel via a multiplexer, and the excitation of each wafer of the array probe is controlled according to the excitation timing, including: The excitation time of each chip in the array probe is determined according to the excitation timing, and the multiplexer is controlled to switch the extended channel to the independent channel according to the excitation time.

[0007] In some embodiments, the extended channel and the independent channel are connected via a multiplexer, and the data acquisition of each chip of the receiving timing control array probe is included according to the receiving timing control array probe: The acquisition time of each chip in the control array probe is determined according to the receiving timing, and the multiplexer is controlled to switch the extended channel to the independent channel according to the acquisition time.

[0008] In some embodiments, the process of synthesizing full matrix acquisition data based on all data acquired by each chip of the array probe includes: The data collected by each transmitter chip through all extended channels are stitched together to form the data collected by a single transmitter chip; The full matrix acquisition data is synthesized based on the acquisition data of all the transmitting chips.

[0009] In some embodiments, determining the total focal plane image based on the full matrix acquisition data using a total focusing algorithm includes: Calculate the acoustic path delay of each pixel in the fully focused imaging region; The full matrix acquisition data is compensated for the delay based on the sound path delay, and the full matrix acquisition data after delay compensation is superimposed to synthesize the amplitude of each pixel. The amplitude of each pixel is color quantized, and the total focus imaging area is determined based on the position and amplitude color value of each pixel.

[0010] In some embodiments, color quantization of the amplitude value of each pixel includes: The quantization value is calculated based on the amplitude of each pixel, the preset upper limit of the display dynamic range, and the preset lower limit of the display dynamic range; The amplitude color value is determined based on the quantized value and the preset color correspondence.

[0011] To achieve the above objectives, another aspect of this application proposes an ultrasonic phased array full-focusing imaging device, applied to an ultrasonic phased array instrument, wherein the ultrasonic phased array instrument includes independent channels and extended channels, and the device includes: The timing determination module is used to determine the excitation timing and reception timing of each crystal of the array probe in the ultrasonic phased array instrument based on the number of the extended channels and the number of the independent channels; the number of the extended channels is greater than the number of the independent channels; The control module is used to control the excitation of each chip of the array probe according to the excitation timing and to control the data acquisition of each chip of the array probe according to the receiving timing. The imaging module is used to synthesize full matrix acquisition data based on all data collected by each chip of the array probe, and to determine full-focus imaging based on the full matrix acquisition data through a full-focusing algorithm.

[0012] To achieve the above objectives, another aspect of this application provides an electronic device, comprising: At least one processor; At least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor performs the method described above.

[0013] To achieve the above objectives, another aspect of this application provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0014] To achieve the above objectives, another aspect of this application proposes an ultrasonic phased array full-focusing imaging system, the system comprising an ultrasonic phased array instrument and a processor, wherein the processor is used to implement the above-described method.

[0015] The embodiments of this application include at least the following beneficial effects: This application provides an ultrasonic phased array full-focusing imaging method and related equipment. This scheme dynamically allocates a limited number of independent physical channels to more probe wafers in a very short time, thereby logically expanding the channel capability of the ultrasonic phased array instrument, enabling the ultrasonic phased array instrument to support probes with a number greater than the number of independent physical channels of the instrument. It uses full-matrix acquisition full-focusing imaging technology. When the number of wafers acquired in the full matrix is ​​greater than the number of independent channels, an extended channel is used. Through multiple high-speed excitation and reception, full-matrix acquisition and full-focusing high-resolution imaging of wafers with a number greater than the number of independent channels are achieved. Thus, using a low-cost ultrasonic phased array instrument, the detection resolution is improved, and the imaging effect that can only be achieved by high-cost ultrasonic phased array instruments is realized. Attached Figure Description

[0016] Figure 1This is a flowchart of the ultrasonic phased array full-focusing imaging method provided in the embodiments of this application; Figure 2 This is a schematic diagram of two wafers being excited according to an embodiment of this application; Figure 3 This is a path diagram of pixel acoustic path delay provided in the embodiments of this application; Figure 4 These are two types of full-focus imaging results provided in the embodiments of this application; Figure 5 This is a schematic diagram of the ultrasonic phased array full-focusing imaging device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the hardware structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit it. In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application; they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0018] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various concepts, but unless otherwise stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words “if,” “when,” or “in response to a determination” as used herein may be interpreted as “when…” or “when…” or “in response to a determination.”

[0019] As used in this application, the terms "at least one", "multiple", "each", "any", etc., "at least one" includes one, two or more, "multiple" includes two or more, "each" refers to each of the corresponding multiples, and "any" refers to any one of the multiples.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0021] The ultrasonic phased array full-focusing imaging method provided in this application relates to the field of information technology. This method can be applied to a terminal, a server, or software running on either a terminal or a server. In some embodiments, the terminal can be a smartphone, tablet, laptop, desktop computer, smart speaker, smartwatch, or vehicle terminal, but is not limited thereto. The server can be configured as an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The server can also be a node server in a blockchain network. The software can be an application implementing the ultrasonic phased array full-focusing imaging method, but is not limited to the above forms.

[0022] This application can be used in a wide variety of general-purpose or special-purpose computer system environments or configurations. Examples include: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics devices, network PCs, minicomputers, mainframe computers, and distributed computing environments including any of the above systems or devices. This application can be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. This application can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0023] Figure 1 This is an optional flowchart of the ultrasonic phased array full-focusing imaging method provided in the embodiments of this application, applied to an ultrasonic phased array instrument, which includes independent channels and extended channels. Figure 1 The method may include, but is not limited to, steps S101 to S103.

[0024] Step S101: Determine the excitation and reception timing of each crystal in the array probe of the ultrasonic phased array instrument based on the number of extended channels and the number of independent channels; the number of extended channels is greater than the number of independent channels. Step S102: Excitation of each chip in the array probe is controlled according to the excitation timing, and data acquisition of each chip in the array probe is controlled according to the receiving timing. Step S103: Synthesize full matrix acquisition data based on all data collected by each chip of the array probe, and determine full-focus imaging based on the full matrix acquisition data using the full-focusing algorithm.

[0025] Based on the number of independent channels and extended channels of the ultrasonic phased array instrument, the excitation and reception timing of each crystal of the array probe connected to the extended channel are set; according to the preset excitation and reception timing of the crystals, the excitation and data reception of the array probe are precisely controlled; after all crystals of the array probe are excited and acquired, the acquired ultrasonic data is first stored in the data storage device, and the full matrix acquisition data is synthesized according to the number of crystals of the array probe; based on the synthesized full matrix acquisition data, the extended channel full-focus imaging is realized through the full-focusing algorithm.

[0026] It should be noted that the extended channel of the ultrasonic phased array instrument can be quickly switched to connect to the instrument's independent channel. After a crystal on the control array probe is excited, the extended channel and the independent channel are quickly connected to achieve time-division multiple acquisitions. After the ultrasonic phased array instrument completes time-division data acquisition through the extended channel, it uses data processing algorithms to synthesize the data into the standard full-matrix acquisition data format of the extended channel. After obtaining the full-matrix acquisition data, the extended channel is connected to the coverage area of ​​the array probe to perform full-focus data processing on the entire coverage area, and full-focus imaging is performed within the coverage area of ​​the array probe.

[0027] In a specific embodiment, for an instrument with only 64 independent channels and 128 extended channels, a 128-crystal phased array probe is used to perform 128-crystal full-focus imaging. When the first crystal is excited, ultrasonic signals from crystals 1-64 are received first, and then ultrasonic signals from crystals 65-128 are received. Subsequently, all 128 crystals are excited sequentially. The ultrasonic signals from the 128 crystals are received twice during each excitation, and the excitation and reception logic is written into the control program.

[0028] In some embodiments, the extended channel and the independent channel are connected via a multiplexer, and the excitation of each chip in the array probe is controlled according to the excitation timing, including: Step S201: Determine the excitation time of each chip in the array probe according to the excitation timing sequence, and control the multiplexer to switch the extended channel to the independent channel according to the excitation time.

[0029] A multiplexer connects the ultrasonic array probe chips on the extended channel to independent channels of the ultrasonic phased array instrument in a time-division manner, enabling time-division excitation of the ultrasonic array probe chips and reception of ultrasonic signals from each chip. A control program controls the multi-channel transmit and receive controller. The independent transmit channel excites the corresponding chips of the ultrasonic phased array probe in the extended channel according to the chip excitation sequence and logic. Simultaneously, the multiplexer connects the independent transmit channel to the extended channel, ensuring that the ultrasonic phased array probe is excited according to the excitation sequence.

[0030] In some embodiments, the extended channel and the independent channel are connected via a multiplexer, and the data acquisition of each chip of the array probe is controlled according to the receiving timing, including: Step S301: Control the acquisition time of each chip of the array probe according to the receiving timing, and at the same time control the multiplexer to switch the extended channel to the independent channel according to the acquisition time.

[0031] When the excitation channel excites the phased array probe according to the timing sequence, the receiving channel simultaneously acquires the ultrasonic signals of each crystal of the phased array probe in the extended channel according to the receiving timing and logic. While exciting and acquiring the ultrasonic signal of a specific crystal, the multiplexer simultaneously controls the multiplexer to connect the independent receiving channel to the extended channel. This multi-acquisition mode completes the full matrix data acquisition, and the acquired ultrasonic data is stored in the data receiver. (See also...) Figure 2 , Figure 2 (a) shows a schematic diagram of the first wafer being excited. Figure 2 (b) shows a schematic diagram of the first wafer being excited, and so on.

[0032] In some embodiments, full matrix acquisition data is synthesized based on all data acquired by each chip of the array probe, including: Step S401: The data collected by each transmitter chip through all extended channels are spliced ​​together to form the acquisition data of a single transmitter chip; Step S402: Synthesize full matrix acquisition data based on the acquisition data of all transmitting chips.

[0033] After the acquired ultrasonic phased array data is stored in the data receiver, it needs to be processed according to the corresponding full matrix acquisition algorithm. The essence of FMC acquisition is to obtain a transmission data matrix. Its elements Indicates that it is made of chip i Excitation, wafer j The received A-scan signal. In this embodiment, the number of physically independent channels... N With the expansion of channel number M Relationship: For a single launch i Complete all switching through Q times M The reception of a chip. Let the subset of chips connected during the q-th reception be . So, the final synthesized one, corresponding to the launch... i Complete receive vector It is composed of data received from Q times: in, It is a vector containing the subset received at the q-th reception. The A-scan signals received by all chips in the process. Finally, by traversing all... i =1 to M A single launch will be enough to completely reconstruct this. The full matrix :

[0034] In some embodiments, based on full-matrix acquisition data, a total-focusing image is determined using a total-focusing algorithm, including: Step S501: Calculate the acoustic path delay of each pixel in the full-focus imaging region; Step S502: Perform delay compensation on the full matrix acquisition data according to the sound path delay, and superimpose the delay-compensated full matrix acquisition data to synthesize the amplitude of each pixel. Step S503: Quantize the amplitude of each pixel using color, and determine the full-focus imaging of the full-focus imaging area based on the position and amplitude color value of each pixel.

[0035] Each pixel in the fully focused imaging region is a scattering point. Calculate the acoustic path delay from the A-scan signal of each pair of transmit-receive array elements to that point. When the first i The first chip is excited, the second j When the chip receives the ultrasound, the ultrasound image is located at point P. For chips i The propagation time to the imaging point P and the time from point P to the receiving chip j The sum of the dissemination time, see Figure 3 .

[0036] Then, all the delayed signals are superimposed at this point to synthesize the amplitude at that point.

[0037] Any pixel in the full-focus imaging region amplitude Given by the following formula:

[0038] in: Indicates the image at pixel points The composite amplitude at that point, Represents the x and y coordinates (depth) of a pixel within the imaging region; This indicates the total number of elements in the phased array probe; Indicates the index of the transmitting element ( ); Indicates the index of the receiving array element ( ); Indicates by the first Each array element is emitted, the first... The original A-scan signal received by each array element; Indicates from the launch array element Time Then return to the receiving array element Total sound wave propagation time.

[0039] In some embodiments, color quantization of the amplitude of each pixel includes: Step S601: Calculate the quantization value based on the amplitude of each pixel, the preset upper limit of the display dynamic range, and the preset lower limit of the display dynamic range; Step S602: Determine the amplitude color value based on the quantization value and the preset color correspondence.

[0040] After obtaining the full-focus composite data of the entire imaging area, the full-focus amplitude information is quantized using color. Based on the location information of the full-focus imaging point and the amplitude color at that location, a full-focus imaging image is formed. The color quantization formula is as follows:

[0041] in, Indicates the first The color value corresponding to the amplitude information of each sampling point; Lut: color lookup table function; : indicates that the ultrasound A-scan signal is at the 1st digit. Amplitude information at each sampling point; : Indicates the upper limit of the dynamic range to be displayed; : Indicates the lower limit of the dynamic range.

[0042] The solutions of the embodiments of the present invention will be described in detail and explained below with reference to specific application examples: In one specific embodiment, an instrument host with 32 independent physical channels and 64 extended channels, using a 64-chip phased array probe, is described. For the actual detection results after using this embodiment of the invention, please refer to [link / reference needed]. Figure 4 , Figure 4 (a) represents the detection result without using the imaging method in the embodiments of the present invention. Figure 4 (b) shows the detection results using the imaging method in this embodiment of the invention. As can be seen from the actual detection results, the detection resolution, signal-to-noise ratio, and coverage are significantly improved after using this embodiment compared to before using the invention.

[0043] Please see Figure 5 This application also provides an ultrasonic phased array full-focusing imaging device, applied to an ultrasonic phased array instrument. The ultrasonic phased array instrument includes independent channels and extended channels, which can realize the above-mentioned method. The device includes: The timing determination module is used to determine the excitation and reception timing of each crystal of the array probe in the ultrasonic phased array instrument based on the number of extended channels and the number of independent channels; the number of extended channels is greater than the number of independent channels. The control module is used to control the excitation of each chip of the array probe according to the excitation timing and to control the data acquisition of each chip of the array probe according to the receiving timing. The imaging module is used to synthesize full matrix acquisition data based on all data collected by each chip of the array probe, and to determine full-focus imaging based on the full matrix acquisition data through a full-focusing algorithm.

[0044] It is understood that the content of the above method embodiments is applicable to the present device embodiments. The specific functions implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0045] This application also provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the above-described method. This electronic device can be any smart terminal, including tablet computers, in-vehicle computers, etc.

[0046] It is understood that the content of the above method embodiments is applicable to this device embodiment. The specific functions implemented by this device embodiment are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0047] Please see Figure 6 , Figure 6 The hardware structure of an electronic device according to another embodiment is illustrated. The electronic device includes: The processor 601 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application. The memory 602 can be implemented as a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 602 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 602 and is called and executed by the processor 601 using the methods described in the embodiments of this application. The input / output interface 603 is used to implement information input and output; The communication interface 604 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.). Bus 605 transmits information between various components of the device (e.g., processor 601, memory 602, input / output interface 603, and communication interface 604); The processor 601, memory 602, input / output interface 603, and communication interface 604 are connected to each other within the device via bus 605.

[0048] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method.

[0049] It is understood that the content of the above method embodiments is applicable to this storage medium embodiment. The specific functions implemented in this storage medium embodiment are the same as those in the above method embodiments, and the beneficial effects achieved are also the same as those achieved in the above method embodiments.

[0050] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0051] It is understood that the content of the above method embodiments is applicable to the embodiments of this program product. The specific functions implemented by the embodiments of this program product are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0052] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0053] This application also provides an ultrasonic phased array full-focusing imaging system, which includes an ultrasonic phased array instrument and a processor, wherein the processor is used to implement the above-described method.

[0054] The embodiments of this application include at least the following beneficial effects: This application provides an ultrasonic phased array full-focusing imaging method and related equipment. This scheme dynamically allocates a limited number of independent physical channels to more probe wafers in a very short time, thereby logically expanding the channel capability of the ultrasonic phased array instrument, enabling the ultrasonic phased array instrument to support probes with a number greater than the number of independent physical channels of the instrument. It uses full-matrix acquisition full-focusing imaging technology. When the number of wafers acquired in the full matrix is ​​greater than the number of independent channels, an extended channel is used. Through multiple high-speed excitation and reception, full-matrix acquisition and full-focusing high-resolution imaging of wafers with a number greater than the number of independent channels are achieved. Thus, using a low-cost ultrasonic phased array instrument, the detection resolution is improved, and the imaging effect that can only be achieved by high-cost ultrasonic phased array instruments is realized.

[0055] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0056] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0057] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0058] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0059] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application 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 the embodiments of this application 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 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.

[0060] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0061] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0062] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0063] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0064] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0065] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. An ultrasonic phased array full focus imaging method, characterized by, The method, applied to an ultrasonic phased array instrument, which includes independent channels and extended channels, comprises the following steps: The excitation and reception timing of each crystal in the array probe of the ultrasonic phased array instrument are determined based on the number of extended channels and the number of independent channels; the number of extended channels is greater than the number of independent channels. The excitation timing control array probe is based on the excitation of each chip, and the receiving timing control array probe is based on the data acquisition of each chip; The full matrix acquisition data is synthesized based on all the data collected by each chip of the array probe, and the full-focus imaging is determined by the full-focusing algorithm based on the full matrix acquisition data.

2. The method of claim 1, wherein, The extended channel is connected to the independent channel via a multiplexer, and the excitation of each chip in the array probe is controlled according to the excitation timing, including: The excitation time of each chip in the array probe is determined according to the excitation timing, and the multiplexer is controlled to switch the extended channel to the independent channel according to the excitation time.

3. The method of claim 1, wherein, The extended channel and the independent channel are connected via a multiplexer, and the data acquisition of each chip of the receiving timing control array probe is performed according to the receiving timing control, including: The acquisition time of each chip in the control array probe is determined according to the receiving timing, and the multiplexer is controlled to switch the extended channel to the independent channel according to the acquisition time.

4. The method of claim 1, wherein, The process of synthesizing full matrix acquisition data based on all data collected by each chip of the array probe includes: The data collected by each transmitter chip through all extended channels are stitched together to form the data collected by a single transmitter chip; The full matrix acquisition data is synthesized based on the acquisition data of all the transmitting chips.

5. The method of claim 1, wherein, The step of determining the total focus image based on the full matrix acquisition data using a total focusing algorithm includes: Calculate the acoustic path delay of each pixel in the fully focused imaging region; The full matrix acquisition data is compensated for the delay based on the sound path delay, and the full matrix acquisition data after delay compensation is superimposed to synthesize the amplitude of each pixel. The amplitude of each pixel is color quantized, and the total focus imaging area is determined based on the position and amplitude color value of each pixel.

6. The method of claim 5, wherein, The step of color quantizing the amplitude of each pixel includes: The quantization value is calculated based on the amplitude of each pixel, the preset upper limit of the display dynamic range, and the preset lower limit of the display dynamic range; The amplitude color value is determined based on the quantized value and the preset color correspondence.

7. An ultrasonic phased array full-focusing imaging device, characterized in that, An instrument for use in ultrasonic phased array devices, the ultrasonic phased array device including independent channels and extended channels, the device comprising: The timing determination module is used to determine the excitation timing and reception timing of each crystal of the array probe in the ultrasonic phased array instrument based on the number of the extended channels and the number of the independent channels; the number of the extended channels is greater than the number of the independent channels; The control module is used to control the excitation of each chip of the array probe according to the excitation timing and to control the data acquisition of each chip of the array probe according to the receiving timing. The imaging module is used to synthesize full matrix acquisition data based on all data collected by each chip of the array probe, and to determine full-focus imaging based on the full matrix acquisition data through a full-focusing algorithm.

8. An electronic device, characterized in that, include: At least one processor; At least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the method as described in any one of claims 1-6.

9. A computer program product comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 6.

10. An ultrasonic phased array full focus imaging system characterized by, The system includes an ultrasonic phased array instrument and a processor, wherein the processor is used to implement the method as described in any one of claims 1-6.

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