CN103610473A - Ultrasonic image adaptive positioning measuring method and device - Google Patents
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Abstract
An embodiment of the invention provides an ultrasonic image adaptive positioning measuring method and device and aims to modify user-entered positioning points and improve accuracy of measuring results. The method includes: determining initial positioning points entered on an ultrasonic image by a user and used for measurement, and using a preset-size area including the initial positioning points as an area under analysis; determining an outline of an object in the area under analysis; using points, closest to the initial positioning point, in the outline of the object as positioning points from the initial positioning points modified; repeating the steps until determining that the user finishes entering the initial positioning points, and measuring the ultrasonic image according to the modified positioning points.
Description
Technical field
The present invention relates to ultrasonic imaging technique field, relate in particular to a kind of ultrasonic image adaptive location measuring method and device.
Background technology
At present, ultrasonic diagnosis, as one of medical science four large image technologies, has been widely used in clinical.With electronic computer x-ray tomography technology (electronic computer X-ray tomography technique, CT), angiography (Digital Subtraction Angiography, DSA), nuclear magnetic resonance (Magnetic Resonance Imaging, MRI) etc. other medical imaging device is compared, it has without wound, the advantages such as relative low price, and the Hemodynamic to the detection of human body soft tissue and cardiovascular internal organs has its distinctive feature, thereby becomes one of imaging device being most widely used in medical science.
Ultrasonic diagnosis after Suspected Area being carried out to ultrasonic examination and generating image, need to be measured image conventionally further.Be generally regioselective point on the image being shown at computer screen by doctor, the anchor point that computer is selected according to doctor again demonstrates measurement result.For example, doctor selects diseased region two ends as anchor point, and Computer display goes out the length of diseased region.Particularly, doctor is by operating mouse, or trace ball, or by touch manner, to be carried out the cursor on moving screen and selected the current position of cursor be anchor point.Because different doctors are for the different operating habit of being positioned with of cursor, cause measurement result to be subject to the impact of anthropic factor, thereby not accurate enough.
In addition, for the convenience of measuring, cursor is generally cross and size is larger, and position to be measured is less while even only having several millimeters, the size of cursor is excessive with respect to position to be measured.In such cases, doctor is positioning cursor accurately, easily to measurement, brings larger error.And relatively excessive cursor also can produce and block impact border, Suspected Area, also can have influence on cursor positioning, produces measurement error.
In a word, prior art is determined anchor point by manual type, the inaccurate deviation that causes measurement result of anchor point.
Summary of the invention
The embodiment of the present invention provides a kind of ultrasonic image adaptive location measuring method and device, in order to solve manual type, determines anchor point, the offset issue of the inaccurate measurement result causing of anchor point.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
First aspect, a kind of ultrasonic image adaptive location measuring method, comprising:
Determine the initial alignment point for measuring that user inputs on ultrasonic image, using the region of the default size that comprises described initial alignment point as region to be analyzed;
Determine the body outline in described region to be analyzed;
To in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point;
Repeat above step, until determine that user has finished the input of initial alignment point, according to each revised anchor point, complete ultrasonic image and measure.
Preferably, using the region of the default size that comprises described initial alignment point as region to be analyzed, comprising: will using the rectangular area of the default size centered by described initial alignment point as region to be analyzed.
Preferably, determine the body outline in described region to be analyzed, comprising:
Obtain the information of each pixel of the ultrasonic image in region to be analyzed;
According to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed;
According to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed.
Preferably, according to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed, comprising:
Determine in each pixel of the ultrasonic image in described region to be analyzed that the difference with the pixel value of neighbor pixel is greater than the pixel of preset value;
According to the difference of the pixel value of described and neighbor pixel, be greater than the pixel of preset value, determine pixel corresponding to body outline in described region to be analyzed.
Preferably, according to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed, comprising:
Determine the coordinate of each pixel that body outline in described region to be analyzed is corresponding; Or, from each pixel corresponding to described body outline, choose the pixel of presetting number, determine the coordinate of each pixel of choosing;
The coordinate of described each pixel is defined as to the Grid Track of the body outline in described region to be analyzed.
Preferably, will in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point, comprising:
According to the Grid Track of described body outline, and the coordinate of described initial alignment point, calculate each point that described Grid Track is corresponding and the distance between described initial alignment point;
Determine in each point that Grid Track is corresponding and the point of the distance minimum between described initial alignment point, using this point as described initial alignment point is carried out to revised anchor point.
Preferably, will in described body outline, put nearest point with described initial alignment, after described initial alignment point is carried out to revised anchor point, the method also comprises:
By the image output display that comprises revised anchor point to user.
Second aspect, a kind of ultrasonic image adaptive location measuring device, comprising:
Anchor point determining unit, for the initial alignment point for measuring of determining that user inputs on ultrasonic image, using the region of the default size that comprises described initial alignment point as region to be analyzed; Determine the body outline in described region to be analyzed; To in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point; Repeat above step, until determine that user has finished the input of initial alignment point;
Measuring unit, for according to each revised anchor point, completes ultrasonic image and measures.
Preferably, when described anchor point determining unit is used for the region of the default size that comprises described initial alignment point as region to be analyzed, specifically for:
To using the rectangular area of the default size centered by described initial alignment point as region to be analyzed.
Preferably, when described anchor point determining unit is used for determining the body outline in described region to be analyzed, specifically for:
Obtain the information of each pixel of the ultrasonic image in region to be analyzed;
According to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed;
According to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed.
Preferably, described anchor point determining unit is for according to the information of each pixel of the ultrasonic image in described region to be analyzed, while determining pixel corresponding to body outline in described region to be analyzed, specifically for:
Determine in each pixel of the ultrasonic image in described region to be analyzed that the difference with the pixel value of neighbor pixel is greater than the pixel of preset value;
According to the difference of the pixel value of described and neighbor pixel, be greater than the pixel of preset value, determine pixel corresponding to body outline in described region to be analyzed.
Preferably, described anchor point determining unit is used for according to pixel corresponding to body outline in described region to be analyzed, while determining the Grid Track of the body outline in described region to be analyzed, specifically for:
Determine the coordinate of each pixel that body outline in described region to be analyzed is corresponding; Or, from each pixel corresponding to described body outline, choose the pixel of presetting number, determine the coordinate of each pixel of choosing;
The coordinate of described each pixel is defined as to the Grid Track of the body outline in described region to be analyzed.
Preferably, described anchor point determining unit is for putting nearest point by described body outline and described initial alignment, when described initial alignment point is carried out to revised anchor point, specifically for:
According to the Grid Track of described body outline, and the coordinate of described initial alignment point, calculate each point that described Grid Track is corresponding and the distance between described initial alignment point;
Determine in corresponding each of Grid Track point and the point of the distance minimum between described initial alignment point, using this apart from minimum point as described initial alignment point is carried out to revised anchor point.
In the embodiment of the present invention, determine initial alignment point region to be analyzed around, in region to be analyzed, find out body outline, initial alignment point is revised to body outline and put nearest point with initial alignment, finally obtain the borderline anchor point in Suspected Area, solve the anchor point inaccurate problem that the artificial mode of determining anchor point causes, improved the degree of accuracy of measurement result.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the ultrasonic image adaptive location measuring method that provides of the embodiment of the present invention;
Fig. 2 is that the embodiment of the present invention provides the schematic flow sheet of determining the body outline in region to be analyzed;
Fig. 3 is the structural representation of the ultrasonic image adaptive location measuring device that provides of the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated.
Referring to Fig. 1, a kind of ultrasonic image adaptive location measuring method that the embodiment of the present invention provides comprises the following steps:
S101: determine the initial alignment point for measuring that user inputs on ultrasonic image, using the region of the default size that comprises described initial alignment point as region to be analyzed.
The input of initial alignment point can realize by plurality of devices, concrete, and user may carry out the cursor on moving screen by operating mouse or trace ball, and cursor position is defined as to initial alignment point; User also directly touch screen to determine initial alignment point.
Only using the region of initial alignment point and near default size thereof as region to be analyzed, the area size of analysis can be controlled in rational scope in this step to the processing speed while promoting subsequent correction anchor point.In specific implementation process, can will using the rectangular area of the default size centered by initial alignment point as region to be analyzed, also can be using comprising of other shape the region of initial alignment point as region to be analyzed.
S102: determine the body outline in described region to be analyzed.
When the image in region to be analyzed comprises the border of Suspected Area, just can find out a body outline corresponding to this border by graphical analysis.In the time cannot finding body outline in region to be analyzed, illustrate that the definite initial alignment point deviation of user is larger, inquire whether user re-enters initial alignment point, or whether inquiry user expands the scope in region to be analyzed, make region to be analyzed after expanded scope can comprise the border of Suspected Area.
Referring to Fig. 2, determine the body outline in region to be analyzed, specifically comprise the following steps:
S201: the information of obtaining each pixel of the ultrasonic image in region to be analyzed.
Step S101 is using the region that comprises initial alignment point as region to be analyzed, be actually the coordinate of determining initial alignment point, near this coordinate, delimit a coordinate range as region to be analyzed, visible, step S101 can not get the image information in region to be analyzed, be the information of each pixel, and then cannot analyze the body outline in region to be analyzed.Step S201 has realized the image information of obtaining region to be analyzed according to the coordinate range in region to be analyzed.
Concrete, according to the coordinate range in region to be analyzed, obtain the image information in region to be analyzed, comprising: the information that extracts each pixel of image from data base or internal memory; According to the corresponding relation of the pixel of the coordinate of predetermined image and image, and according to the coordinate range in region to be analyzed, determine the information of each pixel of the image in region to be analyzed.
The corresponding relation of the coordinate of image and the pixel of image, is the pixel size according to image, size when image shows, and the unit length of coordinate is determined.For example, the pixel size of a ultrasonic image is 200 * 200, on screen according to original size with 20 centimetres of demonstrations of 20 cm x, the unit that sets coordinate is centimetre, the corresponding relation of the coordinate of image and the pixel of image is as follows: a coordinate is (a, the position of the pixel that point b) is corresponding is (a * 10, b * 10).During concrete enforcement, if the position of the pixel calculating according to coordinate is decimal, round numbers is to determine the position of concrete pixel.Otherwise, can also determine the corresponding relation of the pixel of image and the coordinate of image: coordinate corresponding to pixel (c, d) can be designated as (c/10, d/10).
S202: according to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed.
Step S202 specifically comprises: determine in each pixel of the ultrasonic image in described region to be analyzed that the difference with the pixel value of neighbor pixel is greater than the pixel of preset value, obtains two adjacent curves that are comprised of pixel; From two curves that formed by pixel that obtain, choose one, be defined as the body outline in described region to be analyzed.
S203: according to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed.
Concrete, according to the corresponding relation of the coordinate of the pixel of predetermined image and image, by pixel corresponding to body outline, be converted into the Grid Track of body outline.A kind of possible embodiment is, obtains the coordinate of each pixel that body outline is corresponding, then according to the coordinate of each pixel, obtains the Grid Track of body outline.Another kind of possible embodiment is, from pixel corresponding to body outline, only choose the pixel of default number, for example every several pixels, choose a pixel and obtain the coordinate of this pixel, and according to the coordinate of the pixel of the default number of obtaining, determine the Grid Track of body outline; For the measurement of ultrasonoscopy, the coordinate of single pixel seems, and precision is too high, thereby this embodiment simplified the processing procedure of step S203, obtains less data, is convenient to follow-uply determine that quickly initial alignment puts revised position.
S103: will put nearest point with described initial alignment in described body outline, as described initial alignment point is carried out to revised anchor point.
Concrete, calculate each coordinate points in the Grid Track that body outline is corresponding and the distance between initial alignment point, determine the point of the distance minimum in the coordinate points that Grid Track is corresponding and between initial alignment point, using this point as initial alignment point is carried out to revised anchor point.
Due to revised anchor point be on body outline with the nearest point of initial alignment point, thereby revised anchor point can meet the intention that user chooses initial alignment point to greatest extent.
In specific implementation process, for promoting user, experience, be convenient to user and adjust in time anchor point, can be when step S103 be finished, position display by revised anchor point on image is to user, and user can select to cancel this anchor point according to correction result and re-enter initial alignment point or directly input next initial alignment point.
S104: judge whether user has finished the input of initial alignment point, if so, execution step S105; No person, execution step S101.
Concrete, when receiving the indication of the end initial alignment point input that user sends, determine that user has finished the input of initial alignment point.
The number of the initial alignment point of each measurement input is relevant with measurement content, for example: when user finds range, generally only need to choose two initial alignment points; When user carries out superonic spectrum analysis, conventionally need to choose plural initial alignment point.
S105: according to each revised anchor point, complete ultrasonic image and measure.
Concrete, according to each revised anchor point, according to the measurement content of user's input, complete measurement.
Referring to Fig. 3, a kind of ultrasonic image adaptive location measuring device that the embodiment of the present invention provides, comprising:
Anchor point determining unit 301, for the initial alignment point for measuring of determining that user inputs on ultrasonic image, using the region of the default size that comprises described initial alignment point as region to be analyzed; Determine the body outline in described region to be analyzed; To in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point; Repeat above step, until determine that user has finished the input of initial alignment point;
Measuring unit 302, for according to each revised anchor point, completes ultrasonic image and measures.
Described anchor point determining unit 301 when using the region of the default size that comprises described initial alignment point as region to be analyzed, specifically for:
To using the rectangular area of the default size centered by described initial alignment point as region to be analyzed.
Described anchor point determining unit 301 when determining the body outline in described region to be analyzed, specifically for:
Obtain the information of each pixel of the ultrasonic image in region to be analyzed;
According to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed;
According to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed.
Described anchor point determining unit 301 is for according to the information of each pixel of the ultrasonic image in described region to be analyzed, while determining pixel corresponding to body outline in described region to be analyzed, specifically for:
Determine in each pixel of the ultrasonic image in described region to be analyzed that the difference with the pixel value of neighbor pixel is greater than the pixel of preset value;
According to the difference of the pixel value of described and neighbor pixel, be greater than the pixel of preset value, determine pixel corresponding to body outline in described region to be analyzed.
Described anchor point determining unit 301 is for according to pixel corresponding to body outline in described region to be analyzed, while determining the Grid Track of the body outline in described region to be analyzed, specifically for:
Determine the coordinate of each pixel that body outline in described region to be analyzed is corresponding; Or, from each pixel corresponding to described body outline, choose the pixel of presetting number, determine the coordinate of each pixel of choosing;
The coordinate of described each pixel is defined as to the Grid Track of the body outline in described region to be analyzed.
Described anchor point determining unit 301 is for described body outline and described initial alignment are put to nearest point, when described initial alignment point is carried out to revised anchor point, specifically for:
According to the Grid Track of described body outline, and the coordinate of described initial alignment point, calculate each point that described Grid Track is corresponding and the distance between described initial alignment point;
Determine in corresponding each of Grid Track point and the point of the distance minimum between described initial alignment point, using this apart from minimum point as described initial alignment point is carried out to revised anchor point.
The method that the embodiment of the present invention provides and device not only can be applicable to medical domain, can also be applied to industrial circle, and for example, when ultrasonic listening metal inside is constructed, the method and the device that use the embodiment of the present invention to provide are determined metal inside gap width.
In sum, the embodiment of the present invention provides a kind of ultrasonic image adaptive location measuring method and device, the initial alignment point of user's input is revised to putting the point on immediate body outline with initial alignment, meeting reasonability and the accuracy that has promoted anchor point under the prerequisite of user view, make measurement result more accurate.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (13)
1. a ultrasonic image adaptive location measuring method, is characterized in that, the method comprises:
Determine the initial alignment point for measuring that user inputs on ultrasonic image, using the region of the default size that comprises described initial alignment point as region to be analyzed;
Determine the body outline in described region to be analyzed;
To in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point;
Repeat above step, until determine that user has finished the input of initial alignment point, according to each revised anchor point, complete ultrasonic image and measure.
2. ultrasonic image adaptive location measuring method as claimed in claim 1, is characterized in that, using the region of the default size that comprises described initial alignment point as region to be analyzed, comprising:
To using the rectangular area of the default size centered by described initial alignment point as region to be analyzed.
3. ultrasonic image adaptive location measuring method as claimed in claim 1 or 2, is characterized in that, determines the body outline in described region to be analyzed, comprising:
Obtain the information of each pixel of the ultrasonic image in region to be analyzed;
According to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed;
According to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed.
4. ultrasonic image adaptive location measuring method as claimed in claim 3, is characterized in that, according to the information of each pixel of the ultrasonic image in described region to be analyzed, determines pixel corresponding to body outline in described region to be analyzed, comprising:
Determine in each pixel of the ultrasonic image in described region to be analyzed that the difference with the pixel value of neighbor pixel is greater than the pixel of preset value;
According to the difference of the pixel value of described and neighbor pixel, be greater than the pixel of preset value, determine pixel corresponding to body outline in described region to be analyzed.
5. ultrasonic image adaptive location measuring method as claimed in claim 3, is characterized in that, according to pixel corresponding to body outline in described region to be analyzed, determines the Grid Track of the body outline in described region to be analyzed, comprising:
Determine the coordinate of each pixel that body outline in described region to be analyzed is corresponding; Or, from each pixel corresponding to described body outline, choose the pixel of presetting number, determine the coordinate of each pixel of choosing;
The coordinate of described each pixel is defined as to the Grid Track of the body outline in described region to be analyzed.
6. ultrasonic image adaptive location measuring method as claimed in claim 3, is characterized in that, will in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point, comprising:
According to the Grid Track of described body outline, and the coordinate of described initial alignment point, calculate each point that described Grid Track is corresponding and the distance between described initial alignment point;
Determine in each point that Grid Track is corresponding and the point of the distance minimum between described initial alignment point, using this point as described initial alignment point is carried out to revised anchor point.
7. ultrasonic image adaptive location measuring method as claimed in claim 1, it is characterized in that, to in described body outline, put nearest point with described initial alignment, after described initial alignment point is carried out to revised anchor point, the method also comprises:
By the image output display that comprises revised anchor point to user.
8. a ultrasonic image adaptive location measuring device, is characterized in that, this device comprises:
Anchor point determining unit, for the initial alignment point for measuring of determining that user inputs on ultrasonic image, using the region of the default size that comprises described initial alignment point as region to be analyzed; Determine the body outline in described region to be analyzed; To in described body outline, put nearest point with described initial alignment, as described initial alignment point is carried out to revised anchor point; Repeat above step, until determine that user has finished the input of initial alignment point;
Measuring unit, for according to each revised anchor point, completes ultrasonic image and measures.
9. ultrasonic image adaptive location measuring device as claimed in claim 8, is characterized in that, when described anchor point determining unit is used for the region of the default size that comprises described initial alignment point as region to be analyzed, specifically for:
To using the rectangular area of the default size centered by described initial alignment point as region to be analyzed.
10. ultrasonic image adaptive location measuring device as claimed in claim 8 or 9, is characterized in that, described anchor point determining unit when determining the body outline in described region to be analyzed, specifically for:
Obtain the information of each pixel of the ultrasonic image in region to be analyzed;
According to the information of each pixel of the ultrasonic image in described region to be analyzed, determine pixel corresponding to body outline in described region to be analyzed;
According to pixel corresponding to body outline in described region to be analyzed, determine the Grid Track of the body outline in described region to be analyzed.
11. ultrasonic image adaptive location measuring devices as claimed in claim 10, it is characterized in that, described anchor point determining unit is used for according to the information of each pixel of the ultrasonic image in described region to be analyzed, while determining pixel corresponding to body outline in described region to be analyzed, specifically for:
Determine in each pixel of the ultrasonic image in described region to be analyzed that the difference with the pixel value of neighbor pixel is greater than the pixel of preset value;
According to the difference of the pixel value of described and neighbor pixel, be greater than the pixel of preset value, determine pixel corresponding to body outline in described region to be analyzed.
12. ultrasonic image adaptive location measuring devices as claimed in claim 10, it is characterized in that, described anchor point determining unit is used for according to pixel corresponding to body outline in described region to be analyzed, while determining the Grid Track of the body outline in described region to be analyzed, specifically for:
Determine the coordinate of each pixel that body outline in described region to be analyzed is corresponding; Or, from each pixel corresponding to described body outline, choose the pixel of presetting number, determine the coordinate of each pixel of choosing;
The coordinate of described each pixel is defined as to the Grid Track of the body outline in described region to be analyzed.
13. ultrasonic image adaptive location measuring devices as claimed in claim 10, it is characterized in that, described anchor point determining unit is for putting nearest point by described body outline and described initial alignment, when described initial alignment point is carried out to revised anchor point, specifically for:
According to the Grid Track of described body outline, and the coordinate of described initial alignment point, calculate each point that described Grid Track is corresponding and the distance between described initial alignment point;
Determine in corresponding each of Grid Track point and the point of the distance minimum between described initial alignment point, using this apart from minimum point as described initial alignment point is carried out to revised anchor point.
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| CN103610473B (en) | 2015-04-22 |
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