CN202512242U - Apparatus expanding ultrasonic detection area and improving ultrasonic detection precision - Google Patents
Apparatus expanding ultrasonic detection area and improving ultrasonic detection precision Download PDFInfo
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- CN202512242U CN202512242U CN201220109935XU CN201220109935U CN202512242U CN 202512242 U CN202512242 U CN 202512242U CN 201220109935X U CN201220109935X U CN 201220109935XU CN 201220109935 U CN201220109935 U CN 201220109935U CN 202512242 U CN202512242 U CN 202512242U
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Abstract
The utility model discloses an apparatus expanding the ultrasonic detection area and improving the ultrasonic detection precision. The apparatus is composed of an ultrasonic-wave coupling pad and reflection particles embedded in a base film of the ultrasonic-wave coupling pad. Both an external layer and an internal layer of the base film of the ultrasonic-wave coupling pad are made of acoustically transparent materials, wherein the inner layer material is harder than the external layer material, and the sound spreading velocity inside the ultrasonic coupling pad is consistent; and the reflection particles which are arranged in arrays are embedded inside the external layer material of the base film of the ultrasonic-wave coupling pad. According to the utility model, the reflection particles mark precise position information in images which are obtained by detection of an ultrasonic-wave probe, so that an external and common coordinated system is established for local ultrasonic-wave images which are obtained in different time, thereby providing prior information for splicing, blending and registering among the local images, simplifying the registering algorithm, and realizing rapid splicing and blending of detected images; thus, the detection area is expanded and super-resolution images are obtained.
Description
Technical field
The utility model relates to ultrasound wave lossless detection technology, is specifically related to a kind of supersonic sounding zone and device that improves detection accuracy expanded.
Background technology
Over nearly 20 years; Progress along with science and technology; Particularly computer technology and development of digital image; Ultrasound wave lossless detection and imaging technique all have tremendous development at aspects such as probe designs, signal Processing and applied software developments, make the ultrasonic imaging quality significantly improve, and range of application is more and more wider.Ultrasound wave has stronger penetration power, and has and organized not damaged, advantage such as radiationless to surveying, and therefore is widely used in medical treatment, industry, the energy, archaeology etc.
In a lot of ultrasonic listenings and image applications field, people are urgent to the increasing demand of super-resolution image.So-called super-resolution rebuilding promptly improves the resolution of original image through the method for hardware or software, obtain the image process of a panel height resolution through the image of a series of low resolution.Although in part ultrasonic listening and imaging applications field; Ultrasonic probe can provide the image of adequate resolution; But in most of ultrasonic listenings and imaging applications occasion, current images level of resolution and corresponding apparatus price can not satisfy the urgent day by day market demand.Current, in the ultrasonic imaging field,, can reduce two kinds of approach for the acquisition of high-definition picture: the one, adopt large-area battle array probe, improve hyperacoustic transmission frequency simultaneously.But along with increasing of array element number in the face battle array probe; The thing followed is the aggravation of crosstalking of the coupling between array element, and handling for successive image has increased difficulty, simultaneously along with the raising of ultrasonic emitting frequency; Ultrasound wave significantly increases in the decay of being surveyed in the tissue; Have to adopt the method that improves emissive power to compensate, make that detecting devices is more and more huger, image processing system becomes increasingly complex.The 2nd, for several local low-resolution images; Carry out spatial variations, interpolation method, optimized Algorithm and similarity measure etc. based on the image internal information image is carried out registration and fusion; This is also referred to as the method for registering images of review formula; There is the problem that algorithm complex is high, calculated amount is big equally in these class methods, in practice, are difficult to realize the needs of real time interactive operation.
So sum up existing ultrasonic listening and imaging technique, also exist following deficiency to need to solve:
(1) image quality is not high, and the splicing of image, fusion and registration difficulty are big.Because what ultrasound examination was taked is the mode of non-intruding, can't in X ray detects body surface or body at tissue to be detected, mark be set, no accurate RP between image and the image is feasiblely very difficultly spliced, is cut apart and merge image.
(2) system complex, the equipment dirigibility is not high.Along with raising that ultrasound image quality is required and expansion that search coverage is required; Often adopt large-area battle array probe in the reality, along with the raising with emissive power that increases of array element number in the probe, the thing followed is the aggravation of crosstalking of the coupling between array element; Signals collecting, image processing system become increasingly complex; Equipment is more and more huger, causes its dirigibility to reduce, and costs an arm and a leg.
(3) be difficult to obtain the image of super-resolution.For the same low resolution ultrasonography that obtains in different azimuth and angle of being surveyed tissue; Same because there is not accurate RP information; Bring because of site error to super-resolution rebuilding to cause noise further to aggravate, can't obtain the image of super-resolution.
(4) most ultrasound examinations all need consume consumptive materials such as a large amount of couplants, coupling liquid, and use cost is high.And in medical treatment, also exist the only a few patient to problems such as ultrasound wave couplant allergy.
The utility model content
The utility model purpose is to overcome that existing ultrasonography splice, cuts apart, registration is big with the fusion difficulty, and super-resolution image obtains the deficiency of difficulty, proposes a kind of device of expanding supersonic sounding zone and raising detection accuracy, and specifically technical scheme is following.
A kind of supersonic sounding zone and device that improves detection accuracy expanded; Reflection grain by the ultrasound wave coupling is filled up and is embedded in the ultrasound wave coupling pad base is formed; The cladding material of said ultrasound wave coupling pad base is harder than inner layer material; Skin and the internal layer of said ultrasound wave coupling pad are all selected acoustic window material for use, and ultrasound wave portion's acoustic speed of propagation unanimity within it.
In the above-mentioned expansion supersonic sounding zone and the device of raising detection accuracy, said reflection intragranular is embedded in the ultrasound wave coupling pad base cladding material, and the reflection grain adopts arranged in arrays.
In the above-mentioned expansion supersonic sounding zone and the device of raising detection accuracy, it is the array that dot matrix, linear array and dotted line combine that said reflection grain adopts an arrangement form.
In the above-mentioned expansion supersonic sounding zone and the device of raising detection accuracy, said reflection grain is metal material or stupalith.
In above-mentioned expansion supersonic sounding zone and the device that improves detection accuracy, when arranging reflection grain array, all reflection grains and ultrasound wave coupling pad outside surface apart from consistent.
In the above-mentioned expansion supersonic sounding zone and the device of raising detection accuracy; Ultrasound wave coupling pad base adopts three layers of design, is respectively skin, elastic layer and internal layer from top to bottom, and said reflection grain is embedded between skin and the internal layer; And the reflection grain is fixed through elastic layer, and elastic layer adopts acoustic window material.
In the above-mentioned expansion supersonic sounding zone and the device of raising detection accuracy, said skin, elastic layer and internal layer all adopt the entrant sound resin material.
Above-mentioned expansion supersonic sounding zone is when improving the device work of detection accuracy; The outermost layer of ultrasound wave coupling pad base contacts with ultrasonic probe; Survey a precise position information that identifies in the image that obtains through reflection grain at ultrasonic probe, be embodied as the different local ultrasonographies that constantly obtain and set up a coordinate system outside, common, thereby prior imformation is provided for splicing, fusion and the registration between the topography; Simplify registration Algorithm, realize the quick splicing and the fusion of image; Thereby expansion search coverage and the imaging that obtains super-resolution.
In the above-mentioned course of work, after ultrasound wave coupling cushion material was selected, the speed of ultrasound wave portion's propagation within it was known; After the reflection grain and the distance of ultrasound wave coupling pad outside surface are confirmed; The ultrasound wave that ultrasonic probe sends is received poor during this period of time ability by probe again and confirms after the reflection of reflection grain, and when surveying; This mistiming is less than any mistiming that forms from the ultrasound wave of being returned by the detected object internal reflection; Through a time window is set, does not receive a reflection echo that reflects, thereby eliminate of the influence of reflection grain finally being formed images by detected object.
The application achievements of the utility model can be adaptable across fields such as medical treatment, machinery, pipeline, boats and ships.
Compared with prior art, the utility model has the advantages that:
(1) on existing supersonic imaging apparatus basis, add ultrasound wave coupling pad, owing to increased the position coordinates of the search coverage of priori, thus can realize accurate splicing for several ultrasonographies, thus expansion ultrasonic listening zone.
(2) reduce that existing ultrasonography splices, cuts apart, registration and integration difficulty, realize super-resolution rebuilding simultaneously and improve picture quality.
(3) simple in structure flexible, easy to use, easy and existing ultrasonic listening equipment matches highly versatile.
(4) reusable, reduce the waste of consumptive materials such as ultrasound wave couplant, coupling liquid, reduce use cost.
Description of drawings
Fig. 1 is the ultrasound wave coupling pad work synoptic diagram of the said embedded reflection grain of the utility model.
Fig. 2 is the ultrasound wave coupling pad cross-sectional view of the said embedded reflection grain of the utility model.
Fig. 3 a is the point-like reflection grain array that is arranged in concentric circles.
Fig. 3 b is the linear reflection grain array of orthogonal thereto layout.
Fig. 3 c is that the dotted line that interleaved is arranged combines reflection grain array.
Fig. 4 a is three original ultrasound wave topographies.
Fig. 4 b realizes spliced general image.
Fig. 5 a is the low resolution ultrasonography of inner no reflection events grain.
Fig. 5 b is the low resolution ultrasonography that there is the reflection grain inside.
Fig. 5 c is the super-resolution image that obtains through image registration.
Fig. 6 a is the synoptic diagram that the mistiming produces when implementing detection.
Fig. 6 b is the synoptic diagram that time window is set.
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing, but enforcement of the utility model and protection domain are not limited thereto the utility model.
As shown in Figure 1, be the work synoptic diagram of an embodiment of ultrasound wave coupling pad of the said embedded reflection grain of the utility model.In this embodiment, ultrasound wave coupling pad is planar structure, and reflection spot 101 linear arrays are the ranks type arranged in arrays that dotted line combines.The upper surface of this ultrasound wave coupling pad 102 is a ultrasonic probe surface of contact 103, contacts with ultrasonic probe during work, and lower surface is surveyed tissue contact surface 104, surveys tissue surface with quilt during work and contacts.Its ectomesoderm contacts with ultrasonic probe, and its quality is harder, and purposes is to guarantee that the interior reflection grain of coupling pad and the distance on coupling pad surface remain unchanged; Internal layer is contacted with surveying tissue, and its quality is softer, and purposes is to guarantee coupling piece and surveyed good coupling between the tissue.The skin and the internal layer of said coupling pad base are all selected the entrant sound resin material for use, to guarantee carrying out bending according to the surface configuration of being surveyed tissue, guarantee the ultrasound wave homogeneity and the consistance of portion's acoustic speed of propagation within it simultaneously.
The said outer field reflection grain of ultrasound wave coupling pad that is embedded in adopts arranged in arrays usually, and its arrangement form can be the array that dot matrix, linear array and dotted line combine.The reflection grain should be according to specifically being selected for use material different by the difference of detected object; Can select metal material when in medical treatment, human body being surveyed; In industry to large-scale metal forging, then can select stupalith when foundry goods is surveyed; The image of guaranteeing reflection grain keeps clear and locality specific in ultrasonography, can accurately demarcate local ultrasonography.
As shown in Figure 2, be the cross-sectional view of an embodiment of the utility model said ultrasound wave coupling pad.This ultrasound wave coupling pad is made up of with linear reflection grain 204 coupling pad base and embedded point-like reflection grain 205.Coupling piece sheet base adopts three layers of design, is respectively hard layer 201, elastic layer 202 and soft layer 203 from top to bottom.Wherein the superiors are hard layer, guarantee reflection spot linear array and surperficial the remaining unchanged apart from d of coupling piece in the elastic layer.The thickness of this layer is moderate; The middle layer is an elastic layer, and purposes is to be used for fixing the reflection spot linear array, and this layer is thinner relatively; Innermost layer is a soft layer, guarantees coupling piece and is surveyed good coupling between the tissue, and this layer is thicker relatively.Hard layer, elastic layer and the soft layer of coupling piece sheet base are all selected the entrant sound resin material for use, to guarantee carrying out bending according to the surface configuration of being surveyed tissue, guarantee the ultrasound wave homogeneity and the consistance of portion's acoustic speed of propagation within it simultaneously.
Reflection grain in the ultrasound wave coupling pad is shown in Fig. 3 a-Fig. 3 c; Its pattern can be that (Fig. 3 a), linear array (Fig. 3 b) and dotted line combine the arrangement form of (Fig. 3 c) for dot matrix; Select flexibly according to concrete detected object during use; For the ultrasound wave of different frequency, serve as to select foundation not influence image quality and to be easy to image is accurately demarcated.
Shown in Fig. 4 a-Fig. 4 b, the said ultrasonic reflections of the utility model pads an embodiment synoptic diagram of existing image mosaic and expansion.What Fig. 4 a represented is three original ultrasound wave topographies; At present; Ultrasonography as shown in the figure does not indicate the stain of sequence number, so for several topographies, normally carry out spatial variations, interpolation method, optimized Algorithm and similarity measure etc. based on the image internal information; Carry out image registration and splicing, the consequence of these class methods makes that the ultrasonography disposal system becomes increasingly complex, price is more and more expensive.And according to the ultrasonic reflections pad of the utility model, can be implemented in and calibrate the RP that has accurate coordinates information in several topographies in advance, utilize these RP information, can realize registration and splicing at an easy rate to image.Shown in Fig. 4 b, be that the relative position that the RP in three width of cloth topographies among Fig. 4 a is filled up by the ultrasound wave coupling is carried out registration, and the image after the expansion that obtains.
Shown in Fig. 5 a-Fig. 5 c, be the auxiliary embodiment synoptic diagram that forms super-resolution image of ultrasound wave coupling pad of embedded reflection grain shown in the utility model.Fig. 5 a is two width of cloth low-resolution images of existing ultrasonic equipment to being organized same section to form from different perspectives by detection, and visible do not having under the situation of accurate RP, only relies on the inner information of image, and when carrying out registration and merging, difficulty is very big.And Fig. 5 b is after using the ultrasound wave coupling pad of the said embedded reflection grain of the utility model, two width of cloth low-resolution images that form from different perspectives.Different is; There is the accurate RP of nine location awares image inside; Utilize the positional information of these nine RPs just can reduce image registration and integration difficulty greatly, the concrete position in conjunction with ultrasound wave coupling pad just can obtain the super-resolution image shown in Fig. 5 c easily.
Shown in Fig. 6 a-Fig. 6 b, be to eliminate the reflection grain receives influence to the measurand reflection wave an embodiment synoptic diagram.Shown in Fig. 6 a, line segment PQ is common linear array probe.This probe sees through ultrasound wave coupling pad to being surveyed the tissue emission ultrasound beamformer.M
iAnd M
jTwo reflection grains that pass through for ultrasound beamformer sometime.Suppose that the velocity of propagation of ultrasound wave in ultrasound wave coupling pad is v, then ultrasound beamformer sends from linear array probe PQ, through reflection grain M
iAnd M
jThe time t that reflection is received by probe again
d=2d/v is from the ultrasound beamformer time t that is reflected by the detected object organization internal
l=2l/v.L is the distance of being surveyed between tissue and the ultrasonic probe, because l＞d, so t
l＞t
d, be t when a time span is set
dTime window, filter out 0～t
dDuring reflection wave in the time period, will shown in Fig. 6 b, eliminate the ultrasonic signal of reflection grain reflection fully, can keep the ultrasonic signal of being surveyed the tissue reflection simultaneously again fully.
Claims (6)
1. expand supersonic sounding zone and the device that improves detection accuracy for one kind; It is characterized in that forming by the reflection grain that the ultrasound wave coupling is filled up and is embedded in the ultrasound wave coupling pad base; The cladding material of said ultrasound wave coupling pad base is harder than inner layer material; Skin and the internal layer of said ultrasound wave coupling pad are all selected acoustic window material for use, and ultrasound wave portion's acoustic speed of propagation unanimity within it.
2. based on the described expansion supersonic sounding of claim 1 zone and the device that improves detection accuracy, it is characterized in that said reflection intragranular is embedded in the ultrasonic wave coupling pad base cladding material, the reflection grain adopts arranged in arrays.
3. expansion supersonic sounding according to claim 1 zone and the device that improves detection accuracy is characterized in that it is the array that dot matrix, linear array and dotted line combine that said reflection grain adopts arrangement form.
4. based on the described expansion supersonic sounding of claim 1 zone and the device that improves detection accuracy, it is characterized in that said reflection grain is metal material or ceramic material.
5. based on the described expansion supersonic sounding of claim 1 zone and the device that improves detection accuracy, it is characterized in that all reflection grains are consistent with the distance of ultrasonic wave coupling pad base outer surface.
6. according to claim 1～5 each described expansion supersonic sounding zone and the device that improves detection accuracy; It is characterized in that ultrasound wave coupling pad base adopts three layers of design; Be respectively skin, elastic layer and internal layer from top to bottom; Said reflection grain is embedded between skin and the internal layer, and the reflection grain is fixed elastic layer employing acoustic window material through elastic layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220109935XU CN202512242U (en) | 2012-03-21 | 2012-03-21 | Apparatus expanding ultrasonic detection area and improving ultrasonic detection precision |
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| CN201220109935XU CN202512242U (en) | 2012-03-21 | 2012-03-21 | Apparatus expanding ultrasonic detection area and improving ultrasonic detection precision |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608219A (en) * | 2012-03-21 | 2012-07-25 | 华南理工大学 | Device for expanding ultrasonic detection region and increasing detection precision and method |
| CN108267745A (en) * | 2016-06-22 | 2018-07-10 | 安溪县景宏技术咨询有限公司 | Image forming apparatus and its image forming method |
-
2012
- 2012-03-21 CN CN201220109935XU patent/CN202512242U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608219A (en) * | 2012-03-21 | 2012-07-25 | 华南理工大学 | Device for expanding ultrasonic detection region and increasing detection precision and method |
| CN102608219B (en) * | 2012-03-21 | 2014-07-16 | 华南理工大学 | Device for expanding ultrasonic detection region and increasing detection precision and method |
| CN108267745A (en) * | 2016-06-22 | 2018-07-10 | 安溪县景宏技术咨询有限公司 | Image forming apparatus and its image forming method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20150321 |
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| EXPY | Termination of patent right or utility model |