CN106859695B - Q-frame T-aperture composite emission imaging method and system applied to ultrasonic probe - Google Patents
Q-frame T-aperture composite emission imaging method and system applied to ultrasonic probe Download PDFInfo
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Abstract
The invention provides a Q frame T aperture composite emission imaging method and a Q frame T aperture composite emission imaging system applied to an ultrasonic probe, wherein the method comprises the following steps: correspondingly setting a scanning line group for each lateral emission aperture, taking any scanning line group as a basic scanning line group, and inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the current scanning image; scanning each ultrasonic scanning line by line to obtain scanning line data corresponding to each ultrasonic scanning line; in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned; converting each scanning line data into original image data; and performing X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image. On the premise of not losing the frame frequency, the invention solves the problem of uneven sound beam width of the near-middle far field of the lateral sound beam at the emission end of the 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes, and improves the quality of the ultrasonic image.
Description
Technical Field
The invention relates to the field of ultrasound, in particular to a Q-frame T-aperture composite emission imaging method and a Q-frame T-aperture composite emission imaging system applied to an ultrasonic probe.
Background
Medical ultrasonic imaging is applied more and more widely in clinic due to the characteristics of real-time imaging, high imaging speed, no wound and radiation, continuous dynamic and repeatable scanning, and becomes one of the indispensable important imaging means in the field of medical imaging.
The one-dimensional probes which are most widely used clinically at present comprise linear arrays, arc arrays and phased arrays; its lateral and longitudinal resolution performs well, but its lateral resolution is greatly limited. Because the size of the lateral aperture of the one-dimensional probe is fixed, the lateral focusing generally realizes the mechanical focusing of a fixed focus through an acoustic lens, the lateral beam width of a lateral sound field is only narrowest near the mechanical focus, and the lateral beam width is wider at a place far away from the mechanical focus; however, in a place where the lateral beam is wide, the partial volume effect is large, and is expressed as poor contrast of an image, and artifacts are easily introduced; when the lateral beam width is larger than the lesion size, or although smaller than the lesion size, the acoustic beam contains a part of tissue, the lesion echo overlaps with the echo of the surrounding normal tissue, and a partial volume effect is generated, thereby resulting in poor imaging quality.
In order to improve the disadvantage of the one-dimensional probe that laterally takes a fixed aperture and fixed focus causing beam width beyond the mechanical focus, 1.25-dimensional, 1.5-dimensional, 1.75-dimensional and two-dimensional probes were introduced.
The two-dimensional probe imaging transmitting end can realize electronic focusing, and the receiving end can realize electronic dynamic focusing, so that the transverse and lateral beam widths can be well controlled, but the number of array elements and the number of probe cables of the two-dimensional probe can be greatly increased, the design of the probe is quite complex, higher requirements are provided for the design of a system, and the two-dimensional probe is not widely used at present.
Compared with a two-dimensional probe, a 1.25-dimensional probe, a 1.5-dimensional probe and a 1.75-dimensional probe in the prior art have the advantages that receiving focusing is completed in the probe, and the receiving focusing is the same as that of the 1.25-dimensional probe without increasing the number of channels synthesized by transverse beams of a system, so that the dynamic control of the transverse beams becomes possible on the premise of not increasing the number of channels synthesized by the transverse beams of an ultrasonic system, particularly the real-time dynamic focusing of a receiving end, the width consistency of the transverse receiving beams can be greatly improved, the partial volume effect is reduced, and the image quality is improved.
However, for the transmit ends of 1.25, 1.5 and 1.75 dimensional probes, the 1.25, 1.5 and 1.75 dimensional probes, all of which are mechanically focused with a fixed focus through an acoustic lens, while being adjustable with respect to their lateral transmit apertures; thus, for 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes, when the emission focus is in the near field region, the lateral aperture is generally smaller to achieve narrow lateral beam width, reduce partial volume effect and improve image contrast, but the small lateral aperture causes beam width in the far field, and the energy is low, and the penetration and image contrast are reduced; on the contrary, when the transmitting focus is in the far field region, the lateral aperture is opened to a larger extent to realize a narrow lateral beam in the far field region, reduce partial volume effect, and improve the contrast of the image, but the large lateral aperture causes the volume effect in the near field region to be increased, thereby reducing the contrast of the image. Accordingly, the transmitting end of the probe for 1.25 dimension, 1.5 dimension and 1.75 dimension still faces the problems of narrow lateral beam near the mechanical focus, wide lateral beam far away from the mechanical focus area and uneven beam width.
For the transmitting end of the 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes, some solutions are also proposed at present, and a multi-focus acoustic lens is proposed to realize multi-focus control of the transmitting end and improve the consistency of lateral beams of the transmitting end; however, such a multifocal acoustic lens design requires acoustic lenses with different curvatures to be designed laterally along the center of the lateral aperture toward both sides, and is complicated in design and is generally used less frequently.
Disclosure of Invention
The invention aims to provide a Q-frame T-aperture composite emission imaging method and a Q-frame T-aperture composite emission imaging system applied to an ultrasonic probe.
In order to achieve one of the above objects, an embodiment of the present invention provides a Q-frame T-aperture composite emission imaging method applied to an ultrasound probe, where Q is 1, and T is a positive integer greater than or equal to 2;
the method comprises the following steps:
s1, acquiring the number and size of lateral transmitting apertures of a transmitting end;
s2, correspondingly setting a scanning line group for each lateral emission aperture, wherein the number of ultrasonic scanning lines in each scanning line group is the same;
s3, taking any scanning line group as a basic scanning line group, inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the current scanning image;
s4, scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines, and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
s5, converting each scanning line data into original image data;
and S6, performing X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image, wherein X is more than or equal to 2 and less than or equal to 2T.
As a further improvement of an embodiment of the present invention, the step S3 specifically includes:
and arranging the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line adjacently, and arranging the ultrasonic scanning lines with the same serial number in each scanning line group in sequence according to the size of the corresponding lateral emission aperture.
As a further improvement of an embodiment of the present invention, the step S6 specifically includes:
the display line data corresponding to the final image obtained is represented by Ij(k) And then:
wherein k represents the image depth, Cr (w, k) is a smooth filter coefficient varying along the depth, r is the scan line group number to which the current ultrasonic scan line belongs, r is more than or equal to 1 and less than or equal to T, and Vj-w+1(k) And the scanning line data corresponding to each ultrasonic scanning line in the final scanning lines are represented, and N represents the number of the ultrasonic scanning lines in each scanning line group.
In order to achieve one of the above objects, an embodiment of the present invention provides a Q-frame T-aperture composite emission imaging method applied to an ultrasound probe, where a value of Q is equal to a value of T and is a positive integer greater than or equal to 2;
the method comprises the following steps:
m1, acquiring the number and size of lateral transmitting apertures of a transmitting end;
m2, correspondingly setting a scanning line group for each lateral emission aperture, wherein the number of ultrasonic scanning lines in each scanning line group is the same;
m3, taking any scanning line group as a basic scanning line group, and inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the first frame of the current scanning image;
m4, repeating the step M3 to obtain final scanning lines corresponding to Q frame images of the current scanning image respectively;
in the longitudinal direction of the Q frame scanning line, the lateral transmitting apertures corresponding to the ultrasonic scanning lines with the same serial number are different;
m5, scanning each ultrasonic scanning line frame by frame according to the arrangement sequence of the final scanning line corresponding to each frame, and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
m6, converting each scanning line data into original image data;
m7, respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in the adjacent Q frames to obtain data of each display line, and forming a final image.
As a further improvement of an embodiment of the present invention, the step S3 specifically includes:
and the ultrasonic scanning lines with the same serial number in each scanning line group in the final scanning lines are adjacently arranged, and the ultrasonic scanning lines with the same serial number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
As a further improvement of an embodiment of the present invention, in the step M7, the coefficient of the weighted average is represented by hr (k),
then:
wherein k represents the image depth, r is the scanning line group number to which the current ultrasonic scanning line belongs, and r is more than or equal to 1 and less than or equal to T.
In order to achieve one of the above objects, an embodiment of the present invention provides a Q-frame T-aperture composite emission imaging system applied to an ultrasound probe, where Q is 1, and T is a positive integer greater than or equal to 2;
the system comprises:
the data acquisition module is used for acquiring the number and the size of the lateral transmitting apertures of the transmitting end;
the configuration module is used for correspondingly setting a scanning line group for each lateral emission aperture, and the number of the ultrasonic scanning lines in each scanning line group is the same;
taking any scanning line group as a basic scanning line group, inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the current scanning image;
the scanning module is used for scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
the data processing module is used for converting each scanning line data into original image data;
and performing X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image, wherein X is more than or equal to 2 and less than or equal to 2T.
As a further improvement of the embodiment of the present invention, the configuration module is further configured to adjacently arrange the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line, and the ultrasonic scanning lines with the same serial number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
As a further improvement of an embodiment of the present invention, the data processing module is specifically configured to:
displaying line data corresponding to the obtained final image as Ij(k) And then:
wherein k represents the image depth, Cr (w, k) is a smooth filter coefficient varying along the depth, r is the scan line group number to which the current ultrasonic scan line belongs, r is more than or equal to 1 and less than or equal to T, and Vj-w+1(k) And the scanning line data corresponding to each ultrasonic scanning line in the final scanning lines are represented, and N represents the number of the ultrasonic scanning lines in each scanning line group.
In order to achieve one of the above objects, an embodiment of the present invention provides a Q-frame T-aperture composite emission imaging system applied to an ultrasound probe, where a value of Q is equal to a value of T and is a positive integer greater than or equal to 2;
the system comprises:
the data acquisition module is used for acquiring the number and the size of the lateral transmitting apertures of the transmitting end;
the configuration module is used for correspondingly setting a scanning line group for each lateral emission aperture, and the number of the ultrasonic scanning lines in each scanning line group is the same;
taking any scanning line group as a basic scanning line group, inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to a first frame of a current scanning image;
acquiring final scanning lines respectively corresponding to Q frame images of the current scanning image, wherein the lateral transmitting apertures corresponding to the ultrasonic scanning lines with the same serial number are different in the longitudinal direction of the Q frame scanning lines;
the scanning module is used for scanning each ultrasonic scanning line frame by frame according to the arrangement sequence of the final scanning line corresponding to each frame to obtain scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
the data processing module is used for converting each scanning line data into original image data;
and respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in the adjacent Q frames to obtain the data of each display line so as to form a final image.
As a further improvement of an embodiment of the present invention,
the configuration module is further used for enabling the ultrasonic scanning lines with the same sequence number in each scanning line group of the final scanning line to be adjacently arranged, and the ultrasonic scanning lines with the same sequence number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
As a further development of an embodiment of the invention, the data processing module is specifically configured to use the coefficients of the weighted average in hr(k) It is shown that,
then:
wherein k represents the image depth, r is the scanning line group number to which the current ultrasonic scanning line belongs, and r is more than or equal to 1 and less than or equal to T.
Compared with the prior art, the invention has the beneficial effects that: the Q-frame T-aperture composite emission imaging method and the Q-frame T-aperture composite emission imaging system applied to the ultrasonic probe solve the problem of uneven sound beam width of the near-middle far field and the far-middle far field of the lateral sound beam at the emission end of the 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes on the premise of not losing the frame frequency, reduce partial volume effect caused by the beam width outside a fixed mechanical focus area, and improve the quality of ultrasonic images.
Drawings
Fig. 1 is a schematic flow chart of a Q-frame T-aperture complex emission imaging method applied to an ultrasound probe according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a specific example of dual-aperture dual-line composite emission imaging using the method of FIG. 1;
FIG. 3 is a schematic diagram of a specific example of three aperture triplex composite emission imaging using the method of FIG. 1;
fig. 4 is a flowchart of a Q-frame T-aperture complex emission imaging method applied to an ultrasound probe according to a second embodiment of the present invention;
FIG. 5 is a schematic diagram of a specific example of dual-aperture dual-line dual-frame composite emission imaging using the method of FIG. 4;
FIG. 6 is a schematic diagram of a specific example of three aperture three-line three-frame composite emission imaging using the method of FIG. 4;
fig. 7 is a block diagram of a Q-frame T-aperture complex transmission imaging system applied to an ultrasound probe according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
It should be noted that, in the specific application example of the present invention, the problem that the transmitting end of the 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes mentioned in the background art implements mechanical focusing of a fixed focus through an acoustic lens, which results in an increase in the volume effect of the near field region and thus reduces the contrast of the image is mainly solved.
As shown in fig. 1, in a first embodiment of the present invention, a Q-frame T-aperture complex emission imaging method applied to an ultrasound probe is provided, in the first embodiment, Q is 1, and T is a positive integer greater than or equal to 2.
The method specifically comprises the following steps: and S1, acquiring the number and the size of the lateral transmitting apertures of the transmitting end.
The transmitting end of the 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes generally has a plurality of lateral transmitting apertures, and the lateral transmitting apertures which are required to be used currently can be automatically adjusted according to requirements in the scanning process. Generally, the lateral emitting apertures of the emitting ends of the ultrasonic probes are arranged in sequence from large to small or from small to large.
In the specific example of the present invention, for convenience of description, the number of obtained lateral emission apertures is represented by a parameter T, where T is a positive integer greater than or equal to 2; in a preferred embodiment of the present invention, the value range of T is: t is more than or equal to 2 and less than or equal to 16.
Further, in the first embodiment of the present invention, the method further includes: and S2, correspondingly setting a scanning line group for each lateral emission aperture, wherein the number of the ultrasonic scanning lines in each scanning line group is the same.
In a specific example of the present invention, the number of the lateral emitting apertures corresponding to the ultrasound probe is T, and each of the lateral emitting apertures is, in order from small to large, a lateral aperture 1, a lateral aperture 2, and an … … lateral aperture T, where the lateral aperture 1< the lateral aperture 2< … … < the lateral aperture T.
Correspondingly, the number of the arranged scanning line groups is also T groups, and the number of the ultrasonic scanning lines in each group of scanning line groups is N; a first set of scanning line groups is arranged corresponding to the lateral aperture 1, configured to: l is11、L12、…、L1N(ii) a A second set of scanning line groups is arranged corresponding to the lateral aperture 2, configured to: l is21、L22、…、L2N(ii) a And by analogy, a T-th group of scanning line groups is arranged corresponding to the lateral apertures T, and is configured as follows: l isT1、LT2、…、LTN。
Further, in the first embodiment of the present invention, the method further includes: and S3, inserting other scanning line groups into the basic scanning line group by taking any scanning line group as the basic scanning line group to form a final scanning line corresponding to the current scanning image.
In a specific embodiment of the present invention, the step S3 specifically includes: and arranging the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line adjacently, and arranging the ultrasonic scanning lines with the same serial number in each scanning line group in sequence according to the size of the corresponding lateral emission aperture.
Continuing with the above example, in an embodiment of the present invention, the first scanning line group L corresponding to the lateral aperture 1 is used11、L12、…、L1NSequentially inserting a second group to a Tth group of scanning line groups into the basic scanning line group to form a final scanning line corresponding to the current scanning image;
in this example, the final scan line formed is: l is11、L21、…、LT1、L12、L22、…、LT2、…、L1N、L2N、…、LTNAnd the final scanning lines comprise T × N ultrasonic scanning lines.
In a preferred embodiment of the present invention, the ultrasound scanning lines in each scanning line group with the same serial number are sequentially arranged from small to large or from large to small according to the corresponding lateral emission apertures, so that in the scanning process, switching of each lateral emission aperture is facilitated in the scanning process, and the following description will be continued.
Further, in the first embodiment of the present invention, the method further includes: s4, scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines, and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning is carried out on each corresponding ultrasonic scanning line by adopting the lateral transmitting aperture corresponding to the scanning line group where the ultrasonic scanning line is located.
In the embodiment, the lateral emission aperture is adjusted in real time according to the current ultrasonic scanning line; in the final scanning line process configured, the ultrasonic scanning lines with the same serial number in each group of scanning lines are sorted from small to large or from large to small according to the sizes of the corresponding lateral transmitting apertures, and meanwhile, the lateral transmitting apertures corresponding to the ultrasonic probes are usually arranged according to the size sequence of the ultrasonic scanning lines, so that the lateral transmitting apertures can be conveniently switched corresponding to the current ultrasonic scanning lines in the scanning process, and the scanning speed is improved.
Continuing with the above example, the scan line data obtained for each ultrasound scan line in the final scan line sequentially is: v1、V2、…、VT*N。
Further, in the first embodiment of the present invention, the method further includes: and S5, converting each scanning line data into original image data.
In a specific embodiment of the present invention, the scanning line data is converted into the original image data by a middle processing method, which is not described in detail herein.
Further, in the first embodiment of the present invention, the method further includes: and S6, performing X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image, wherein X is more than or equal to 2 and less than or equal to 2T.
In one embodiment of the present invention, the display line data corresponding to the final image is obtained as Ij(k) And then:
wherein k represents the image depth, Cr is a smooth filtering coefficient changing along the depth, r is the scanning line group number of the current ultrasonic scanning line, r is more than or equal to 1 and less than or equal to T, and Vj-w+1(k) In the final scan lineThe scanning line data corresponding to each ultrasonic scanning line, X represents the smoothing filtering order, and N represents the number of the ultrasonic scanning lines in each scanning line group.
Typically, the smoothing filter coefficients are given by internal engineering parameters, each set of smoothing filter coefficients varying along the depth of the image; in the specific implementation mode of the invention, the coefficient of the smooth filtering is determined by grouping the scanning lines, each group of scanning lines is given with different filtering coefficients, and the sum of the smooth filtering coefficients is equal to 1 at the same depth; the higher the selected smoothing filtering order is, the clearer and more accurate the final image obtained by the smoothing filtering order is.
Continuing with the above example, the display line data in the final image obtained is in turn: i is1、I2、…、IT*N。
In connection with fig. 2, for ease of understanding, a specific example is described below for understanding the present invention. In this specific example, a dual-aperture and dual-line composite emission imaging of 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes is described, and accordingly, the number of lateral emission apertures corresponding to the ultrasound probe is 2, namely, a lateral aperture 1 and a lateral aperture 2, and the lateral aperture 1 is smaller than the lateral aperture 2;
the first group of scanning line groups corresponding to the lateral aperture 1 is configured as follows: o is1、O2、O3、…、ONThe second group of scanning line groups corresponding to the lateral aperture 2 is: e1、E2、E3、…EN(ii) a After the configuration, the final scanning line corresponding to the current scanning image is configured as follows: o is1、E1、O2、E2、O3、E3、…、ON、EN(ii) a Scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines to obtain scanning line data corresponding to each ultrasonic scanning line; in the scanning process, corresponding scanning O1、O2、O3、…、ONIn time, the probe at the transmitting end adopts a lateral aperture 1 in the lateral direction and correspondingly scans E1、E2、E3、…ENWhen in use, the probe at the transmitting end adopts a lateral aperture 2 in the lateral direction; processing received scanned line data to obtain an original imageImage data; performing 3-order FIR smooth filtering on the original image data along the scanning direction of the final scanning line, and obtaining display line data corresponding to the processed final image by the formula, wherein I is respectively1、I2、…、I2*N。
Referring to fig. 3, three-aperture three-line composite emission imaging of 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes is described, and accordingly, the corresponding lateral emission apertures of the ultrasonic probe are 3, namely, the lateral aperture 1, the lateral aperture 2, the lateral aperture 3 and the lateral aperture 1<Lateral aperture 2<A lateral aperture 3; the first group of scanning line groups corresponding to the lateral aperture 1 is configured as follows: o is1、O2、O3、…、ONThe second group of scanning line groups corresponding to the lateral aperture 2 is: e1、E2、E3、…ENThe first scanning line group corresponding to the lateral aperture 3 is configured as follows: t is1、T2、T3、…、TNAfter the configuration, the final scanning line corresponding to the current scanning image is configured as follows: o is1、E1、T1、O2、E2、T2、O3、E3、T3、…、ON、EN、TN(ii) a Scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines to obtain scanning line data corresponding to each ultrasonic scanning line; in the scanning process, corresponding scanning O1、O2、O3、…、ONIn time, the probe at the transmitting end adopts a lateral aperture 1 in the lateral direction and correspondingly scans E1、E2、E3、…ENIn time, the lateral direction of the probe at the transmitting end adopts a lateral aperture 2 and correspondingly scans T1、T2、T3、…、TNWhen in use, the probe at the transmitting end adopts a lateral aperture 3 in the lateral direction; carrying out intermediate processing on the received scanned line data to obtain original image data; performing 5-order FIR smooth filtering on the original image data along the scanning direction of the final scanning line, and obtaining display line data corresponding to the processed final image by the formula, wherein I is respectively1、I2、…、I3*N。
Referring to fig. 4, in a second embodiment of the present invention, a Q-frame T-aperture complex emission imaging method applied to an ultrasound probe is provided, in which a value of Q is equal to a value of T and is a positive integer greater than or equal to 2. The difference between the second embodiment of the present invention and the first embodiment is that the value of Q in the first embodiment is 1, and the value of Q in the second embodiment is equal to the value of T;
in a second embodiment of the present invention, the method comprises: m1, number and size of the side emitting apertures of the acquisition emitting end.
In one embodiment of the present invention, the number of lateral emission apertures is represented by a parameter T, where T is a positive integer greater than or equal to 2; in a preferred embodiment of the present invention, the value range of T is: t is more than or equal to 2 and less than or equal to 16.
Further, in the second embodiment of the present invention, the method further includes: m2, correspondingly setting a scanning line group for each side transmitting aperture, wherein the number of the ultrasonic scanning lines in each scanning line group is the same.
In a specific example of the present invention, the number of the lateral emitting apertures corresponding to the ultrasound probe is T, and each of the lateral emitting apertures is, in order from small to large, a lateral aperture 1, a lateral aperture 2, and an … lateral aperture T, where the lateral aperture 1< the lateral aperture 2< … < the lateral aperture T.
Correspondingly, the number of the arranged scanning line groups is also T groups, and the number of the ultrasonic scanning lines in each group of scanning line groups is N; a first set of scanning line groups is arranged corresponding to the lateral aperture 1, configured to: l is11、L12、…、L1N(ii) a A second set of scanning line groups is arranged corresponding to the lateral aperture 2, configured to: l is21、L22、…、L2N(ii) a And by analogy, a T-th group of scanning line groups is arranged corresponding to the lateral apertures T, and is configured as follows: l isT1、LT2、…、LTN。
Further, in the second embodiment of the present invention, the method further includes: m3, based on any scanning line group, inserting other scanning line groups into the basic scanning line group to form the final scanning line corresponding to the first frame of the current scanning image.
In a specific embodiment of the present invention, the step S3 specifically includes: and arranging the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line adjacently, and arranging the ultrasonic scanning lines with the same serial number in each scanning line group in sequence according to the size of the corresponding lateral emission aperture.
Continuing with the above example, in an embodiment of the present invention, the first scanning line group L corresponding to the lateral aperture 1 is used11、L12、…、L1NSequentially inserting a second group to a Tth group of scanning line groups into the basic scanning line group to form a final scanning line corresponding to a first frame of the current scanning image; in this example, the final scan line corresponding to the first frame is formed as follows: l is11、L21、…、LT1、L12、L22、…、LT2、…、L1N、L2N、…、LTNAnd the final scanning lines comprise T × N ultrasonic scanning lines.
Further, in the second embodiment of the present invention, the method further includes: m4, repeating the step M3 to obtain final scanning lines corresponding to Q frame images of the current scanning image respectively; in the longitudinal direction of the Q frame scanning line, the lateral transmitting apertures corresponding to the ultrasonic scanning lines with the same serial number are different.
Continuing with the above example, in an embodiment of the present invention, the final scan line formed corresponding to the second frame is: is L21、L31、…、LT1、L11、L22、L32、…、LT2、L12、…、L2N、L3N、…、LTN、L1N(ii) a By analogy, the final scan line formed corresponding to the Q-th frame is: is LT1、L11、L21、…、L(T-1)1、LT2、L12、L22、…、L(T-1)2、…、LTN、L1N、L2N、…、L(T-1)N. In this embodiment, the scanning line is arranged in the longitudinal direction of the Q frame scanning lineThe ultrasonic scan line at position number 1 is taken as an example: the ultrasonic scanning lines at the position of the serial number 1 in the longitudinal direction of each frame scanning line are sequentially as follows: l is11、L21、…、LT1The ultrasonic scanning lines in the position of the serial number 1 respectively correspond to lateral emitting apertures which are sequentially as follows: lateral aperture 1, lateral aperture 2 … …, lateral aperture T.
Further, in the first embodiment of the present invention, the method further includes: m5, scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines, and acquiring scanning line data corresponding to each ultrasonic scanning line; in the scanning process, scanning is carried out on each corresponding ultrasonic scanning line by adopting the lateral transmitting aperture corresponding to the scanning line group where the ultrasonic scanning line is located.
Further, in the first embodiment of the present invention, the method further includes: m6, converting each scanning line data into original image data.
In a specific embodiment of the present invention, the scanning line data is converted into the original image data by a middle processing method, which is not described in detail herein.
Further, in the first embodiment of the present invention, the method further includes: m7, respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in the adjacent Q frames to obtain data of each display line, and forming a final image.
Preferably, in the present embodiment, when the coefficient of the weighted average is represented by hr (k):
wherein k represents the image depth, r is the scanning line group number to which the current ultrasonic scanning line belongs, and r is more than or equal to 1 and less than or equal to T.
As shown in fig. 5, a specific example is described below for understanding the present invention, for convenience of understanding. In this specific example, a dual-aperture dual-line dual-frame composite emission imaging of 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes is described, and accordingly, the number of lateral emission apertures corresponding to the ultrasound probe is 2, namely, a lateral aperture 1 and a lateral aperture 2, and the lateral aperture 1 is smaller than the lateral aperture 2;
the first group of scanning line groups corresponding to the lateral aperture 1 is configured as follows: o is1、O2、O3、…、ONThe second group of scanning line groups corresponding to the lateral aperture 2 is: e1、E2、E3、…EN(ii) a After the configuration, the final scanning line corresponding to the first frame of the current scanning image is configured as follows: o is1、E1、O2、E2、O3、E3、…、ON、EN(ii) a The final scanning line of the second frame corresponding to the current scanning image is configured as follows: e1、O1、E2、O2、E3、O3、…、EN、ON；
Scanning each ultrasonic scanning line frame by frame according to the arrangement sequence of the final scanning lines, and acquiring scanning line data corresponding to each ultrasonic scanning line; in the scanning process, corresponding scanning O1、O2、O3、…、ONIn time, the probe at the transmitting end adopts a lateral aperture 1 in the lateral direction and correspondingly scans E1、E2、E3、…ENWhen in use, the probe at the transmitting end adopts a lateral aperture 2 in the lateral direction; carrying out intermediate processing on the received scanned line data to obtain original image data; and respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in 2 frames to obtain data of each display line so as to form a final image.
In the present embodiment, the position of the number 1, i.e., O in the first frame, is for each frame1And E in the second frame1Weighted average to obtain the display line data I of the first image1And repeating the steps to obtain all display line data of the final image.
In this particular example, two weighted average coefficients, h respectively, are set according to the number of side-emitting aperturesO(k) And hE(k) For any frame, hO(k) Acting all the time on the scanning line O1、O2、O3、…、ONCorresponding image data, hE(k) Act on the sweep all the timeLine inspection E1、E2、E3、…ENCorresponding image data. k denotes the image depth, hO(k) And hE(k) Varies along the image depth k, but at any depth k satisfies:
in one embodiment of the invention, the weighting factor that varies along the image depth k is given by an internal engineering parameter, and as a preference of the invention, h is generally the caseO(k) The weight in the near field area is larger, and the weight in the far field area is smaller; h isE(k) The weight in the near field area is smaller, and the weight in the far field area is larger; after the weighting processing, the display line data of the final image are sequentially I1，I2，I3，…，I2N。
Referring to fig. 6, three-aperture three-line three-frame composite emission imaging of 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes is described, and accordingly, the number of lateral emission apertures corresponding to the ultrasound probe is 3, namely, a lateral aperture 1, a lateral aperture 2, and a lateral aperture 3; lateral aperture 1< lateral aperture 2< lateral aperture 3;
the first group of scanning line groups corresponding to the lateral aperture 1 is configured as follows: o is1、O2、O3、…、ONThe second group of scanning line groups corresponding to the lateral aperture 2 is: e1、E2、E3、…ENThe third group of scanning line groups corresponding to the lateral aperture 3 is: t is1、T2、T3、…、TN，
After the configuration, the final scanning line corresponding to the first frame of the current scanning image is configured as follows: o is1、E1、O2、E2、O3、E3、…、ON、EN(ii) a The final scanning line of the second frame corresponding to the current scanning image is configured as follows: e1、O1、E2、O2、E3、O3、…、EN、ON(ii) a Correspond toThe final scan line of the third frame of the current scan image is configured to: t is1、O1、E1、T2、O2、E2、T3、O3、E3、…、TN、ON、EN；
Scanning each ultrasonic scanning line frame by frame according to the arrangement sequence of the final scanning lines, and acquiring scanning line data corresponding to each ultrasonic scanning line; in the scanning process, corresponding scanning O1、O2、O3、…、ONIn time, the probe at the transmitting end adopts a lateral aperture 1 in the lateral direction and correspondingly scans E1、E2、E3、…ENWhen in use, the probe at the transmitting end adopts a lateral aperture 2 in the lateral direction; correspondingly scanning: t is1、T2、T3、…、TNWhen in use, the probe at the transmitting end adopts a lateral aperture 3 in the lateral direction; carrying out intermediate processing on the received scanned line data to obtain original image data; and respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in the adjacent Q frames to obtain the data of each display line so as to form a final image.
In the present embodiment, the position of the number 1, i.e., O in the first frame, is for each frame1In the second frame1And T in the third frame1Weighted average is carried out to obtain the display line data I of the first image of the final image1And repeating the steps to obtain all display line data of the final image.
In this particular example, three weighted average coefficients, h respectively, are set according to the number of side-emitting aperturesO(k)、hE(k) And hT(k) For any frame, hO(k) Acting all the time on the scanning line O1、O2、O3、…、ONCorresponding image data, hE(k) Acting all the time on the scanning line E1、E2、E3、…ENCorresponding image data, hT(k) Acting on the scan line all the time: t is1、T2、T3、…、TNCorresponding image data. k denotes the image depth, hO(k)、hE(k)hT(k) Varies along the image depth k, but at any depth k satisfies:
in one embodiment of the invention, the weighting factor that varies along the image depth k is given by an internal engineering parameter, and as a preference of the invention, h is generally the caseO(k) The weight in the near field area is larger, and the weight in the middle and far field area is smaller; h isE(k) The weight in the near-far field area is smaller, and the weight in the midfield area is larger; h isT(k) The weight is greater in the far field region and less in the near mid-field region. After the weighting processing, image display line data I is obtained1，I2，I3，…，I3N。
Referring to fig. 7, an embodiment of the present invention provides a Q-frame T-aperture complex emission imaging system applied to an ultrasound probe, including: the system comprises a data acquisition module 100, a configuration module 200, a scanning module 300 and a data processing module 400.
In the first embodiment of the present invention, the data acquisition module 100 is configured to obtain the number and size of the lateral transmitting apertures of the transmitting end.
In the specific example of the present invention, for convenience of description, the number of obtained lateral emission apertures is represented by a parameter T, where T is a positive integer greater than or equal to 2; in a preferred embodiment of the present invention, the value range of T is: t is more than or equal to 2 and less than or equal to 16.
The configuration module 200 is configured to set one scanning line group for each lateral transmitting aperture, where the number of the ultrasound scanning lines in each scanning line group is the same.
The configuration module 200 is further configured to insert other scanning line groups into the basic scanning line group based on any scanning line group to form a final scanning line corresponding to the current scanning image.
In a specific embodiment of the present invention, the configuration module 200 is specifically configured to adjacently arrange the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line, and the ultrasonic scanning lines with the same serial number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
In a preferred embodiment of the present invention, the ultrasound scanning lines in each scanning line group with the same serial number are sequentially arranged from small to large or from large to small according to the corresponding lateral emission apertures, so that in the scanning process, switching of each lateral emission aperture is facilitated in the scanning process, and the following description will be continued.
Further, the scanning module 300 is further configured to scan each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines, and acquire scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning is carried out on each corresponding ultrasonic scanning line by adopting the lateral transmitting aperture corresponding to the scanning line group where the ultrasonic scanning line is located.
In the embodiment, the lateral emission aperture is adjusted in real time according to the current ultrasonic scanning line; in the final scanning line process configured, the ultrasonic scanning lines with the same serial number in each group of scanning lines are sorted from small to large or from large to small according to the sizes of the corresponding lateral transmitting apertures, and meanwhile, the lateral transmitting apertures corresponding to the ultrasonic probes are usually arranged according to the size sequence of the ultrasonic scanning lines, so that the lateral transmitting apertures can be conveniently switched corresponding to the current ultrasonic scanning lines in the scanning process, and the scanning speed is improved.
The data processing module 400 is used for converting each scan line data into raw image data.
In a specific embodiment of the present invention, the data processing module 400 converts each scanned line data into original image data in a medium processing manner, which is not described in detail herein.
Further, the data processing module 400 is further configured to perform X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image, where X is greater than or equal to 2 and is less than or equal to 2T.
In one embodiment of the present invention, the display line data corresponding to the final image is obtained as Ij(k) And then:
wherein k represents the image depth, Cr is a smooth filtering coefficient changing along the depth, r is the scanning line group number of the current ultrasonic scanning line, r is more than or equal to 1 and less than or equal to T, and Vj-w+1(k) And scanning line data corresponding to each ultrasonic scanning line in the final scanning lines are represented, X represents the smoothing filtering order, and N represents the number of the ultrasonic scanning lines in each scanning line group.
Typically, the smoothing filter coefficients are given by internal engineering parameters, each set of smoothing filter coefficients varying along the depth of the image; in the specific implementation mode of the invention, the coefficient of the smooth filtering is determined by grouping the scanning lines, each group of scanning lines is given with different filtering coefficients, and the sum of the smooth filtering coefficients is equal to 1 at the same depth; the higher the selected smoothing filtering order is, the clearer and more accurate the final image obtained by the smoothing filtering order is.
In a second embodiment of the present invention, each module in a Q-frame T-aperture complex transmission imaging system applied to an ultrasound probe is the same as the module of the first embodiment, except that functions of some modules are different, and in the second embodiment, a value of Q is equal to a value of T and is a positive integer greater than or equal to 2.
In the second embodiment of the present invention, the data acquisition module 100 is also used to obtain the number and size of the lateral transmitting apertures of the transmitting end.
In the second embodiment of the present invention, the configuration module 200 is configured to set one scanning line group for each lateral emission aperture, where the number of the ultrasonic scanning lines in each scanning line group is the same.
Further, the configuration module 200 is further configured to insert other scanning line groups into the basic scanning line group based on any scanning line group to form a final scanning line corresponding to the first frame of the current scanning image.
In a specific embodiment of the present invention, the configuration module 200 is specifically configured to adjacently arrange the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line, and the ultrasonic scanning lines with the same serial number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
Further, the configuration module 200 is further configured to repeat the above steps to obtain final scanning lines corresponding to Q frame images of the current scanning image, respectively, where in a longitudinal direction of the Q frame scanning lines, the lateral emitting apertures corresponding to the ultrasonic scanning lines with the same sequence number are all different.
In the first embodiment of the present invention, the scanning module 300 is configured to scan each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines, and acquire scanning line data corresponding to each ultrasonic scanning line; in the scanning process, scanning is carried out on each corresponding ultrasonic scanning line by adopting the lateral transmitting aperture corresponding to the scanning line group where the ultrasonic scanning line is located.
In the first embodiment of the present invention, the data processing module 400 is configured to convert each scan line data into raw image data.
In a specific embodiment of the present invention, the data processing module 400 converts each scanned line data into original image data in a medium processing manner, which is not described in detail herein.
Further, the data processing module 400 is further configured to perform weighted average on the original image data corresponding to the ultrasound scanning lines with the same sequence number in the adjacent Q frames, respectively, to obtain data of each display line, so as to form a final image.
Preferably, in the present embodiment, when the coefficient of the weighted average is represented by hr (k):
wherein k represents the image depth, r is the scanning line group number to which the current ultrasonic scanning line belongs, and r is more than or equal to 1 and less than or equal to T.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the corresponding implementation manners and application scenarios of the above-described systems and modules may refer to the specific working processes of the above-described methods, and are not described herein again.
In conclusion, the Q-frame T-aperture composite emission imaging method and system applied to the ultrasonic probe solve the problem of non-uniform acoustic beam widths of the near-middle far field and the far-middle far field of the side acoustic beam at the emission end of the 1.25-dimensional, 1.5-dimensional and 1.75-dimensional probes on the premise of not losing the frame frequency, reduce the partial volume effect caused by the beam width outside the fixed mechanical focus area, and improve the quality of the ultrasonic image.
For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, the functionality of the various modules may be implemented in the same one or more software and/or hardware implementations of the invention.
The above-described embodiments of the apparatus are merely illustrative, and the modules described as separate parts may or may not be physically separate, and the parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (12)
1. A Q frame T aperture composite emission imaging method applied to an ultrasonic probe is characterized in that the value of Q is 1, and T is a positive integer greater than or equal to 2;
the method comprises the following steps:
s1, acquiring the number and size of lateral transmitting apertures of a transmitting end;
s2, correspondingly setting a scanning line group for each lateral emission aperture, wherein the number of ultrasonic scanning lines in each scanning line group is the same;
s3, taking any scanning line group as a basic scanning line group, inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the current scanning image;
s4, scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines, and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
s5, converting each scanning line data into original image data;
and S6, performing X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image, wherein X is more than or equal to 2 and less than or equal to 2T.
2. The Q-frame T-aperture complex emission imaging method applied to an ultrasound probe according to claim 1, wherein the step S3 specifically includes:
and arranging the ultrasonic scanning lines with the same serial number in each scanning line group of the final scanning line adjacently, and arranging the ultrasonic scanning lines with the same serial number in each scanning line group in sequence according to the size of the corresponding lateral emission aperture.
3. The Q-frame T-aperture complex emission imaging method applied to an ultrasound probe according to claim 1, wherein the step S6 specifically includes:
the display line data corresponding to the final image obtained is represented by Ij(k) And then:
wherein k represents the image depth, Cr (w, k) is a smooth filter coefficient varying along the depth, r is the scan line group number to which the current ultrasonic scan line belongs, r is more than or equal to 1 and less than or equal to T, and Vj-w+1(k) And the scanning line data corresponding to each ultrasonic scanning line in the final scanning lines are represented, and N represents the number of the ultrasonic scanning lines in each scanning line group.
4. A Q frame T aperture composite emission imaging method applied to an ultrasonic probe is characterized in that the value of Q is equal to the value of T and is a positive integer greater than or equal to 2;
the method comprises the following steps:
m1, acquiring the number and size of lateral transmitting apertures of a transmitting end;
m2, correspondingly setting a scanning line group for each lateral emission aperture, wherein the number of ultrasonic scanning lines in each scanning line group is the same;
m3, taking any scanning line group as a basic scanning line group, and inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the first frame of the current scanning image;
m4, repeating the step M3 to obtain final scanning lines corresponding to Q frame images of the current scanning image respectively;
in the longitudinal direction of the Q frame scanning line, the lateral transmitting apertures corresponding to the ultrasonic scanning lines with the same serial number are different;
m5, scanning each ultrasonic scanning line frame by frame according to the arrangement sequence of the final scanning line corresponding to each frame, and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
m6, converting each scanning line data into original image data;
m7, respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in the adjacent Q frames to obtain data of each display line, and forming a final image.
5. The Q-frame T-aperture complex emission imaging method applied to the ultrasound probe as claimed in claim 4, wherein the step M3 specifically comprises:
and the ultrasonic scanning lines with the same serial number in each scanning line group in the final scanning lines are adjacently arranged, and the ultrasonic scanning lines with the same serial number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
6. The Q-frame T-aperture complex emission imaging method as claimed in claim 4, wherein in the step M7, the coefficient of weighted average is expressed in hr (k),
then:
wherein k represents the image depth, r is the scanning line group number to which the current ultrasonic scanning line belongs, and r is more than or equal to 1 and less than or equal to T.
7. A Q frame T aperture composite emission imaging system applied to an ultrasonic probe is characterized in that,
the value of Q is 1, and the value of T is a positive integer greater than or equal to 2;
the system comprises:
the data acquisition module is used for acquiring the number and the size of the lateral transmitting apertures of the transmitting end;
the configuration module is used for correspondingly setting a scanning line group for each lateral emission aperture, and the number of the ultrasonic scanning lines in each scanning line group is the same;
taking any scanning line group as a basic scanning line group, inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to the current scanning image;
the scanning module is used for scanning each ultrasonic scanning line by line according to the arrangement sequence of the final scanning lines and acquiring scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
the data processing module is used for converting each scanning line data into original image data;
and performing X-order smoothing filtering on the original image data along the scanning direction of the final scanning line to obtain a final image, wherein X is more than or equal to 2 and less than or equal to 2T.
8. The Q-frame T-aperture complex emission imaging system applied to the ultrasonic probe according to claim 7,
the configuration module is further used for enabling the ultrasonic scanning lines with the same sequence number in each scanning line group of the final scanning line to be adjacently arranged, and the ultrasonic scanning lines with the same sequence number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
9. The Q-frame T-aperture complex emission imaging system applied to the ultrasonic probe according to claim 7,
the data processing module is specifically configured to:
displaying line data corresponding to the obtained final image as Ij(k) And then:
wherein k represents the image depth, Cr (w, k) is a smooth filter coefficient varying along the depth, r is the scan line group number to which the current ultrasonic scan line belongs, r is more than or equal to 1 and less than or equal to T, and Vj-w+1(k) And the scanning line data corresponding to each ultrasonic scanning line in the final scanning lines are represented, and N represents the number of the ultrasonic scanning lines in each scanning line group.
10. A Q frame T aperture composite emission imaging system applied to an ultrasonic probe is characterized in that the value of Q is equal to the value of T and is a positive integer greater than or equal to 2;
the system comprises:
the data acquisition module is used for acquiring the number and the size of the lateral transmitting apertures of the transmitting end;
the configuration module is used for correspondingly setting a scanning line group for each lateral emission aperture, and the number of the ultrasonic scanning lines in each scanning line group is the same;
taking any scanning line group as a basic scanning line group, inserting other scanning line groups into the basic scanning line group to form a final scanning line corresponding to a first frame of a current scanning image;
acquiring final scanning lines respectively corresponding to Q frame images of the current scanning image, wherein the lateral transmitting apertures corresponding to the ultrasonic scanning lines with the same serial number are different in the longitudinal direction of the Q frame scanning lines;
the scanning module is used for scanning each ultrasonic scanning line frame by frame according to the arrangement sequence of the final scanning line corresponding to each frame to obtain scanning line data corresponding to each ultrasonic scanning line;
in the scanning process, scanning each corresponding ultrasonic scanning line by adopting a lateral emission aperture corresponding to the scanning line group in which the ultrasonic scanning line is positioned;
the data processing module is used for converting each scanning line data into original image data;
and respectively carrying out weighted average on the original image data corresponding to the ultrasonic scanning lines with the same serial number in the adjacent Q frames to obtain the data of each display line so as to form a final image.
11. The Q-frame T-aperture complex transmit imaging system as applied to an ultrasound probe of claim 10,
the configuration module is further used for enabling the ultrasonic scanning lines with the same sequence number in each scanning line group of the final scanning line to be adjacently arranged, and the ultrasonic scanning lines with the same sequence number in each scanning line group are sequentially arranged according to the size of the corresponding lateral emission aperture.
12. The Q-frame T-aperture complex transmit imaging system as applied to an ultrasound probe of claim 10,
the data processing module is specifically configured to use the coefficient of the weighted average in hr(k) It is shown that,
then:
wherein k represents the image depth, r is the scanning line group number to which the current ultrasonic scanning line belongs, and r is more than or equal to 1 and less than or equal to T.
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