CN104463923B - Image vision-control equipment, image vision-control method and display - Google Patents
Image vision-control equipment, image vision-control method and display Download PDFInfo
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Abstract
A kind of image vision-control equipment, image vision-control method and display, the image vision-control equipment include：Input unit, is configured as receiving the input of high-order difference image；Three-dimensional scenic display device, it is configured as showing three-dimensional scenic, the three-dimensional scenic includes the threedimensional model according to high potential difference image creation and at least two planes for the threedimensional model, in the case of using three-dimensional system of coordinate, location of pixels in x, y coordinate representation high position difference image, z coordinate represents the gray value of respective pixel, and at least two plane is vertical with z-axis；Display parameters set device, are configured as operating correspondingly to set display parameters according to for changing the user of at least one plane position in the z-axis direction；And 2-dimensional image display device, the display parameters according to set by are configured as to adjust the two dimension display of the low level difference image drawn according to high-order difference image.
Description
Technical field
The application is generally related to show the image that the display parameters of two dimensional image, particularly medical image are adjusted and adjusted
Section equipment, image vision-control method and display.
Background technology
Each pixel needs of high-order difference image (high bit level image) are with multiple bits such as 12 or 16 or more
Many bits represent, therefore a total of cannot show more than 4096 gray levels and in regular display.For example, medical image
（Such as x-ray image, CT images etc.）Typically high-order difference image, if representing a pixel with 12 bits, tonal range is from 0
To 4095.Comparatively, regular display represents a pixel with 8 bits, therefore tonal range is from 0 to 255, therefore common
The low level difference image (low bit level image) that is represented with 8 bits can be presented on display device but can not present completely
High potential difference medical image as described above, the X-ray picture presented in regular display as shown in Figure 1.This cannot almost expire
Foot focuses on the demand of specific physiological structure such as lung.
During diagnosing, the specific physiological structure in order to focus on medical image usually needs to adjust over the display
The display parameters of image are saved, the purpose of specific physiological structure is protruded to reach picture superposition or decrease.To be adjusted
The display parameters of section can include window width and window position for example in the case of linear regulation.By taking CT images as an example, window width be for
Certain CT value scope such as 256-600 of CT images is shown, the size of this scope is also referred to as greylevel window, and CT values fall in this CT
Structure in the range of value is shown with corresponding gray scale.CT values are higher than the structure of this scope, with white displays；Conversely,
CT values are less than the structure of this scope, with black display.Window width can influence the contrast that image shows, window width is wider, each knot
Gray scale difference between structure is smaller and contrast declines；Otherwise then contrast increase.Window position is the central value of the CT value scopes.
Window position can influence the brightness that image shows, if the difference of window position, then the display brightness of same window width is also different.
Therefore, good window width not only wants the sufficiently wide tonal range to cover the anatomical detail of specific physiological structure,
But also want sufficiently narrow to provide the significant difference and sharp keen contrast on anatomical detail.Good window potential energy enough provides vision
Upper appropriate brightness.Depending on structure to be focussed, the setting of these parameters also can greatly change.When user expects to watch
During the details of ad hoc structure, usually do not know which kind of parameter setting could provide best visual effect, therefore will generally lead to
Cross substantial amounts of trial and error be adjusted obtaining medical image preferable display result and efficiency be undoubtedly it is low.
In order to improve the efficiency of image vision-control, many methods are had been presented for.
In general adjusting method, user manually changes parameter value by input or mouse action, while in real time
Image obtained by viewing.Although can draw how gradation conversion function is adjusted as auxiliary visible results and providing a user with
Some clues, but it does not provide any instruction to specific physiological structure to the mapping between visual tonal range, and
And therefore need lot of experiments to find the appropriate gray shade level scope for object construction.
In the method based on region of interest (ROI, region of interest), select sense emerging from high-order difference image
Interesting area, and then calculate the greylevel window narrowed for the tonal range around the region.Although the method has automation
Aspect, but the method based on ROI is spatial coherence, rather than gray scale be concerned with, that is to say, that the region of interest is easy to
Including unrelated nonspecific physiological structure, so as to disturb the accurate calculating of the greylevel window for specific physiological structure.
Another method is that high-order difference image is rendered as three dimensional representation, sightless in regular display to provide
More details.But for medical application, two-dimensional medical images are more convenient and are easier to search for, therefore still need as far as possible
Efficiently obtain the two-dimensional representation of optimization.
For example, United States Patent (USP) discloses US7283654B2 gives a kind of tissue or organ for watching in medical image
Method, which provide for intensity relevant feature tissue or organ amplitude enhancing image, with cause and do not have
The two dimensional image that having amplitude strengthens analysis is compared, and these tissues or organ are easier to distinguish for human eye.In the method, for
Some tissues or organ provide three dimensional representation（Amplitude enhancing analysis）But, the purpose is to provide more easily distinguishing for medical image
The enhancing visual effect of other tissue or organ, i.e. medical image, and be easy to adjust image display parameters（Such as window width and
Window position etc.）Wide of the mark.Additionally, the not actual physical structure that the enhanced 3-D view of amplitude is reacted, but image color
Structure.Due to knowledge or custom, what doctor finally to be seen is two dimensional image and not 3-D view and is therefore still needed to
The tradition regulation to be shown to accurate two dimensional image.
United States Patent (USP) discloses US7516417B2 and discloses a kind of user interface, which provides multiple selectable icons,
Each icon includes representing the gray scale patch of the value that window width and window position are set.User only needs the button for selecting to specify, just will be from
Window width and the regulation of window position dynamicly are arrived the designated value related to button.Although the user interface be repeated several times every time regulation one
The operation of parameter value is compared and makes improvement in efficiency and aspect directly perceived, but in the method, the display parameters of window width and window position
To quantity be limited, and the quantity for therefore adjusting be also it is limited and discrete, this cause cannot be applied to
Finer regulation.Additionally, according to the document, the doctor of mapping between gray scale and anatomical detail is lacked experience or is unfamiliar with still
It is difficult to which button determination will select, so as to also to perform trial and error process.
The content of the invention
The application is directed to a kind of for showing the quick of high-order difference image in regular display and continuously adjusting aobvious
Show the image vision-control equipment and image vision-control method of parameter.
The application's relates in one aspect to a kind of image vision-control equipment, including：Input unit, is configured as receiving high-order
The input of difference image；Three-dimensional scenic display device, is configured as showing three-dimensional scenic, the three-dimensional scenic is included according to high potential difference
The threedimensional model of image creation and at least two planes for the threedimensional model, in the case of using three-dimensional system of coordinate, x, y
Location of pixels in coordinate representation high position difference image, z coordinate represents the gray value of respective pixel, at least two plane and z
Axle is vertical；Display parameters set device, are configured as basis for changing the use of at least one plane position in the z-axis direction
Family operates correspondingly to set display parameters；And 2-dimensional image display device, it is configured as the display parameters according to set by
To adjust the two dimension display of the low level difference image drawn according to high-order difference image.
Preferably, the image vision-control equipment may also include three-dimensional scenic adjusting means, be configured as being used according to second
Family operation adjusts the view of three-dimensional scenic, including regulation position of camera, the direction of view and the visual field and three-dimensional scenic
Position and direction.
Preferably, the view of regulation three-dimensional scenic may also include the regulation at least one of color of three-dimensional scenic and impermeable
Lightness.
Preferably, the view of regulation three-dimensional scenic may also include regulation three-dimensional scenic scale factor in the z-axis direction.
Preferably, 2-dimensional image display device and three-dimensional scenic display device are also configured to the change according to display parameters
Change to update the display of three-dimensional scenic and low level difference image synchronously with one another.
Preferably, three-dimensional scenic display device is also configured to according to the selection in the two dimension display of low level difference image
Region synchronously shows the threedimensional model corresponding with the region.
The application's relates in one aspect to a kind of display, including image vision-control equipment as described above again.
The another aspect of the application is related to a kind of image slices vision-control method, and input step receives high-order difference image
Input；Three-dimensional scenic step display, shows three-dimensional scenic, and the three-dimensional scenic includes the three-dimensional mould according to high potential difference image creation
Type and at least two planes for the threedimensional model, in the case of using three-dimensional system of coordinate, x, y coordinate representation high potential difference figure
Location of pixels as in, z coordinate represents the gray value of respective pixel, and at least two plane is vertical with z-axis；Display parameters set
Step is put, operates correspondingly to set display ginseng according to for changing the user of at least one plane position in the z-axis direction
Number；And two dimensional image step display, the low potential difference drawn according to high-order difference image is adjusted according to set display parameters
The two dimension display of image.
Preferably, three-dimensional scenic step display may additionally include the window position and the situation of window width that display parameters are greylevel windows
Two planes of lower display；Display parameters setting steps may also include the scope between described two planes and greylevel window
Window width is corresponding with window position；And two dimensional image step display also includes showing according to the window width corresponding with the scope and window position
Show the low level difference image drawn according to high-order difference image.
Preferably, three-dimensional scenic step display may additionally include the curve greyscale transformation function that display parameters are greylevel windows
Parameter in the case of show at least three planes；Display parameters setting steps may also include the model between the plane most both sides
Enclose corresponding with the window width of greylevel window and make at least another plane and be used to determine the key of curve greyscale transformation function
Point is corresponding；And two dimensional image step display may also include according to the curve greyscale transformation determined by least three plane
Function shows the low level difference image drawn according to high-order difference image.
Preferably, three-dimensional scenic step display may also include by different colours or different opacities to represent three-dimensional mould
Type in greylevel window, downwards overflow greylevel window, upwards overflow greylevel window structure.
Preferably, the image vision-control method may also include the upward spilling of display threedimensional model or overflow gray scale downwards
The step of projection of the structure of window on x/y plane.
Preferably, the image vision-control method can also include the steps of：Three-dimensional is adjusted according to second user operation
The view of scene, including adjust the position and direction of position of camera, the direction of view and the visual field and three-dimensional scenic.
Therefore, according to each side of the application, user can be made intuitively to adjust the feelings of plane with reference to three-dimensional scenic
The display parameters of two dimension display are rapidly and continuously adjusted under condition, so as to considerably improve operating efficiency.
Brief description of the drawings
With reference to specific embodiment, and referring to the drawings, to above and other purpose of presently filed embodiment and
Advantage is further described.In the accompanying drawings, identical or corresponding technical characteristic or part will be using identical or corresponding attached
Icon is remembered to represent.
Fig. 1 is the view for showing the high-order difference image shown in regular display of the prior art；
Fig. 2 shows the block diagram of the image vision-control equipment of the first embodiment according to the application；
Fig. 3 A and Fig. 3 B be respectively the three-dimensional scenic for showing the first embodiment according to the application front view and from certain
The side view of individual angle；
Fig. 4 A and Fig. 4 B are to show correspondingly to set display according to user's operation according to one embodiment of the application
The view of the process of parameter, Fig. 4 C are the overall interfaces for showing to adjust the two dimension display of low level difference image according to user's operation
View；
Fig. 5 A and 5B are overall showing according to one embodiment for showing spilling upwards and overflowing regarding for part downwards
Figure；
Fig. 6 A and 6B are the views for showing to adjust three-dimensional scenic scale factor in the z-axis direction；
Fig. 7 is the view of the display region of interest for showing the one embodiment according to the application；
What Fig. 8 showed the second embodiment according to the application correspondingly sets the mistake of display parameters according to user's operation
The view of journey；
Fig. 9 shows the flow chart of the image vision-control method of an implementation method according to the application；
Figure 10 shows the flow chart of the vision-control process according to one embodiment；
Figure 11 shows the flow chart of the vision-control process according to another embodiment；And
Figure 12 illustrates the ability to the block diagram of the hardware configuration of the computer system for implementing presently filed embodiment.
Specific embodiment
The one exemplary embodiment of the application is described hereinafter in connection with accompanying drawing.For clarity and conciseness,
All features of embodiment are not described in the description.It should be understood, however, that must during implementing to embodiment
Many settings specific to implementation method must be made, to realize the objectives of developer, for example, meeting and equipment and industry
It is engaged in those related restrictive conditions, and these restrictive conditions may be changed with the difference of implementation method.Additionally,
It also should be appreciated that, although development is likely to be extremely complex and time-consuming, but to having benefited from this area of present disclosure
For technical staff, this development is only routine task.
Herein, it should be noted that in order to avoid having obscured the application because of unnecessary details, only show in the accompanying drawings
The process step closely related with scheme according at least to the application and/or device structure, and eliminate and the application relation
Little other details.
The block diagram of the image vision-control equipment 200 of the first embodiment according to the application is described referring to Fig. 2.
Image vision-control equipment 200 can include that input unit 201, three-dimensional scenic display device 202, display parameters set
Put device 203 and 2-dimensional image display device 204.
Input unit 201 is configured as receiving the input of high-order difference image.High-order difference image is compared using multiple as previously described
Spy represents a pixel and therefore its tonal range is typically much deeper than 256.Typically, medical image, such as x-ray image, CT
Image etc. belongs to high-order difference image.For example, the tonal range of CT images can be from -1024 to 1024, and other medical science figures
As can even have the tonal range more than 4096.Below for simplicity, will be illustrated by taking medical image as an example, but this is simultaneously
Non-limiting, the principle of the application is equally applicable to the high-order difference image in other fields, and as described subsequently, the application can be applied
In optical inspection field.
According to one embodiment, can select what is be input into from the high-order difference image being stored in advance in main frame by user
Image, this can be realized by manipulating such as select button and dialog box etc..
According to another embodiment, set for forming the radiograph of high-order difference image from that can be connected with display
Standby or CT equipment directly inputs high-order difference image.
According to another embodiment, high-order difference image can be input into from remote server by network.
These are also only exemplary description, and and non-limiting.Any other image input mode can be used.
Three-dimensional scenic display device 202 is configured as showing three-dimensional scenic, and the three-dimensional scenic is included according to being input into
The threedimensional model of high potential difference image creation and at least two planes for the threedimensional model.
Generally, the high-order difference image of input can be two-dimentional and can the position comprising each pixel and gray scale
Value, these positions and gray value can be for example stored in the file related to the image.For example, obtained after CT scan
DICOM（Digitized video and communication standard）The gray value of the image of form is relatively-stationary.Created using three-dimensional system of coordinate
In the case of threedimensional model corresponding with high-order difference image, x, y-coordinate can be used to represent the location of pixels in high-order difference image,
Z coordinate can be used to represent the gray value of respective pixel.Represented with z coordinate by the gray value of each pixel, can created
The threedimensional model for being easy to observe corresponding with high-order difference image.
In addition to threedimensional model, at least two planes can also be included in three-dimensional scenic.These planes are vertical with z-axis simultaneously
And for the threedimensional model.Especially, these planes can be operated in response to user and moved so as to pass through three-dimensional mould along z-axis
The each several part of type.
Fig. 3 A and Fig. 3 B show a front view for three-dimensional scenic of such establishment and the side view of certain angle.From just
In view 3A, it can clearly be seen that the position relationship between plane and threedimensional model.Preferably, as shown in Figure 3A, by not
Represented with opacity or different colours threedimensional model between plane, downwards overflow lower plane, upwards overflow on plane
Anatomical detail.From side view 3B, it may be clearly seen that 3-D effect.Comparatively, convex portion represents larger gray value,
Corresponding to the part that brightness in high-order difference image is larger；Recess represents less gray value, corresponding to brightness in high-order difference image
Less part.Therefore, when coming along z-axis at least one plane of continuous moving in response to user's operation, the plane with it is three-dimensional
The different piece of model is intersecting and allows intuitively to recognize clamp between two planes corresponding with different anatomic details
Three-dimensional scope.
Although it should be noted that not shown, with the movement of plane, can be in the current z of appropriate region display plane
Axial coordinate, so as to more be visually known its position.
Although additionally, only exemplified two planes in Fig. 3 A and 3B, this is simultaneously non-limiting, can show as needed more
Multiple planes and also can set color or number to make a distinction for these planes, it is preferable that these planes have and three
The visibly different color of dimension module or transparency.Further, the size of these planes is also only example, if be easy to operation and
Observation, size can arbitrarily be set.Similarly, the shape of plane is also only example, as long as being easy to operate and observing, or
Circular or parallelogram etc..
Display parameters set device 203 and are configured as according to for changing at least one plane position in the z-axis direction
User's operation display parameters are correspondingly set.
According to one embodiment, user operation can be that to drag at least one in the z-axis direction in the three-dimensional model flat
The operation in face.For example, user can choose a plane with mouse, and then continuously dragging this along z-axis by mouse puts down
Face passes through threedimensional model.Or, user first can choose a plane with mouse, then come by the direction key of QWERTY keyboard
The plane is manipulated to move along the z-axis direction.
According to another embodiment, user's operation can be pre- on 2-dimensional image display device described below 204
Fixed operation.For example, user can press left mouse button and be slidable in the vertical direction on 2-dimensional image display device 204,
This corresponds to the instruction for increasing or reducing contrast.Or, user can press left mouse button and slide in left-right direction, and this is right
Should be in the instruction for increasing or reducing brightness.According to these instructions, three-dimensional scenic display device 202 can make the aobvious of at least one plane
Show that position changes.
In fact, user's operation is not limited to above-mentioned example, it is possible to use the behaviour of any z-axis position for allowing to change plane
Make, such as user input z-axis coordinate value.Preferably, using mouse, directly continuously the operation of dragging plane is allowed intuitively rapidly
Plane positioning in target location.
Described in detail referring to Fig. 4 A-4B and correspondingly set aobvious according to these users operation in one embodiment
Show the process of parameter.
Three-dimensional scenic shown in Fig. 4 A includes threedimensional model and two planes, and wherein the two planes have passed through user
Operation adjustment is substantially to clamp the scope corresponding with specific anatomical structure such as lung.
Fig. 4 B show the position according to the two planes to set the concept map of display parameters.In figure 4b, GHRepresent
The gray scale of the high potential difference medical image of input, its scope is from 0 to 4095.GTThe gray scale shown in regular display is represented, its
Scope is from 0 to 255.Two dotted line shows schematically two planes, its coordinate perpendicular to the gray value for representing high-order difference image
Axle GH（Corresponding to the z-axis in three-dimensional scenic）.
The scope clamped by the plane after user's operation regulation defines a tonal range, and its width is WDAnd in
Centre position is WL.Preferably, WDAnd WLValue appropriate region in three-dimensional scenic can be displayed on moving for plane.
According to mathematical principle, it is not difficult to find out from figure, the position of the two planes can limit following linear function：
GT=a × GH+ b, if WL-WD/2<GH<WL+ WD/2;
And
GT=0, if GH<WL-WD/2;
GT=255, if GH>WL+WD/2;
The value of wherein a and b can basis（WL-WD/ 2,0）With（WL+ WD/ 2,255）The value of the two points is uniquely determined.When
After the linear function is determined, it is possible to current gray level scope WDInterior gray value is mapped to one by one according to the linear function
Shown on the tonal range 0-255 of display.And WDOutside gray value be then shown as black over the display respectively
（Gray value is 0）Or it is pure white（Gray value 255）, that is to say, that anatomical structure corresponding with these gray values will not be in specifically
Now over the display.
Therefore, in the case that the display parameters in regular display are window position and window width, display parameters set device 203
Just can correspondingly be determined for the window width in the greylevel window corresponding with anatomical structure according to the scope between two planes
WDWith window position WL.In fact, because window width WDThe whole tonal range of far smaller than high-order difference image and therefore this equivalent to handle
The display resource allocation of display on smaller greylevel window, so allow over the display with enhanced contrast clearly
Display anatomical structure corresponding with greylevel window.
Turning now to the description in Fig. 2 to image vision-control equipment 200.The display parameters as described in reference picture 4B
Device 203 is set and is provided with display parameters WDAnd WLAfterwards, 2-dimensional image display device 204 can join according to set display
Count to adjust the two dimension display of the low level difference image drawn according to high-order difference image.
Used as the operation example of image vision-control equipment 200, Fig. 4 C are shown when two planes have been clamped and lung pair
During the tonal range answered, the low level difference image of the lung mechanics after being adjusted according to window width corresponding with the tonal range and window position
Interface.In the view in the upper right side of Fig. 4 C, showing to be operated by user in three-dimensional scenic makes two planes clamp substantially
The result of tonal range corresponding with lung.Display parameters set device 203 and can accordingly be provided as the window position of display parameters
And window width.In the left side view of Fig. 4 C, also show and presented according to window position and window width by 2-dimensional image display device 204
The low level difference image drawn from high-order difference image.From the low level difference image, compared to Figure 1 the contrast of lung substantially increases
By force, other anatomical structures different from the tonal range of lung are shown as black or pure white.
According to another embodiment, image vision-control equipment 200 can also include assistant display device 206, and it is matched somebody with somebody
It is set to the upward spilling of display threedimensional model or overflows projection of the structure of greylevel window on x/y plane downwards.The bottom right of Fig. 4 C
Angle just shows the view for monitoring the structure overflowed upwards and overflow downwards.When plane in user's regulation or lower plane,
Assistant display device 206 shows which structure division overflows upwards in the lower right corner of Fig. 4 C（Beyond upper plane）Or overflow downwards
（Less than lower plane）, to provide a user with whether plan-position is suitable to the auxiliary instruction of the anatomical structure to be shown.Preferably,
These view fields can be filled with different colours, more intuitively to recognize.In the lower right corner of Fig. 4 C, left-side images refer to
Show spilling downwards, image right indicates to overflow upwards.It is visible due to there was only body both sides in three-dimensional scenic from the view in the upper right corner
Few part be located at below lower plane, so assistant display device 206 shows few downward spilling in left-side images
Partly and accordingly user can determine whether that the position of lower plane is relatively low but also can move up lower plane more accurately to press from both sides
Firmly tonal range corresponding with lung.Meanwhile, assistant display device 206 shows that the region around lung starts in right side view
Below upper plane, this is indicated, and the adjustment of upper plane will exceed scope corresponding with lung and hexyl is originally adjusted in place.
In addition, it is also seen that current display parameters are shown in region between left side view and right side view,
Such as window width, window position and with the beginning and end value of window width etc..
Preferably, 2-dimensional image display device 204 is additionally configured to be indicated and institute in the two dimension display of low level difference image
State the corresponding part of projection.Fig. 5 A and Fig. 5 B are the views similar with Fig. 4 C, are shown respectively when the three-dimensional scenic in the upper right corner
In shown on the low level difference image in left side behind appropriate adjustment plan-position crossed with irregular curve overflow upwards part and
The view of part is overflowed downwards.In this case, user such as doctor intuitively can come exactly with reference to human dissection image
Judge lung whether fall into overflow part and it is thus determined that display parameters regulate whether meet diagnosis require.
According to another embodiment, image vision-control equipment 200 can also include three-dimensional scenic adjusting means 205, quilt
It is configured to be adjusted according to second user operation the view of three-dimensional scenic, including adjusts position of camera, the direction of view and regard
The position and direction of wild and three-dimensional scenic.
For example, second user operation is selection or predetermined mouse action in shortcut menu etc..
Preferably, the view of regulation three-dimensional scenic may also include the regulation at least one of color of three-dimensional scenic and impermeable
Lightness.
It is highly preferred that the view of regulation three-dimensional scenic may also include regulation three-dimensional scenic scale factor in the z-axis direction,
Fig. 6 A and 6B show a case that to compress and stretch three-dimensional scenic in the z-axis direction respectively in the upper right corner.By such tune
Section, it is allowed to more subtly move at least one plane more subtly to be adjusted display parameters.
According to another embodiment, 2-dimensional image display device 204 and three-dimensional scenic display device 202 can be configured as basis
The change of display parameters updates the display of three-dimensional scenic and low level difference image synchronously with one another.For example, when user drags plane
When, three-dimensional scenic display device 202 at least changes the scope that plane clamps and the color or transparency of the scope both sides etc..Together
When, 2-dimensional image display device 204 synchronously can update low level difference image according to display parameters corresponding with the scope
Two dimension display can also update spilling upwards and overflow part downwards.Additionally, assistant display device 206 can also synchronously more
The new display for overflowing part.This synchronized update can for example be realized by using technologies such as look-up tables.
Preferably, three-dimensional scenic display device 202 be also configured to according in low level difference image select region come
Synchronously show the threedimensional model corresponding with the region.Fig. 7 shows such view, and wherein left side view shows that user exists
A square region interested is drawn on low level difference image（Including lung）, then the view in the upper right corner show that three-dimensional scenic shows
Device 202 synchronously shows the threedimensional model corresponding with the square region in three-dimensional scenic.This allows user more directly perceived
Whether the accurate regulation for judging display parameters in ground meets diagnosis requires.
Therefore, the image vision-control equipment 200 according to the implementation method is the model in two dimensional image and three-dimensional scenic
Be combined with plane, with allow user intuitively with reference to three-dimensional scenic to adjust plane in the case of rapidly and continuously adjust
The display parameters of high-order difference image are shown in regular display, so as to substantially increase operating efficiency.
Next the image vision-control equipment of the second embodiment according to the application described.The implementation method with it is previous
The principle that the difference of implementation method essentially consists according to user's operation correspondingly to set display parameters is different, therefore incite somebody to action
Retrace and state difference part, and for being not repeated with the same or analogous other parts of above-mentioned implementation method.
Described in detail referring to Fig. 8 in the implementation method and the mistake of display parameters is correspondingly set according to user's operation
Journey.
In fig. 8, GHThe gray scale of the high potential difference medical image of input is represented, its scope is from 0 to 4095.GTRepresent common
The gray scale shown on display, its scope is from 0 to 255.Four dotted line shows schematically four planes, and it is high-order perpendicular to expression
The reference axis G of the gray value of difference imageH（Corresponding to the z-axis in three-dimensional scenic）, P1-P4 represents four coordinates of plane respectively
And it is used to uniquely identify plane.Herein, although be described by taking four planes as an example, but can set flat more than four
Face.
The scope that mobile two planes of outermost are clamped by user's operation defines a tonal range, its width
It is WD.Preferably, WDValue appropriate region in three-dimensional scenic can be displayed on moving for plane.
In this embodiment, it is also crucial by one group in addition to using two points as in first embodiment
The value of point determines curve greyscale transformation function.The shown parameter setting apparatus 203 of each key point are mapped in three-dimensional scenic
Another the crucial plane between two planes of outermost, it is in other words, corresponding with the crucial plane.With quadratic function
As a example by, according to mathematical principle, in addition to needing two points in two planes of outermost, in addition it is also necessary to a point come determine this two
Secondary function.Accordingly, it is desirable to select a crucial plane and figure 8 illustrates the plane P3 as crucial plane and right with it
The key point answered.Therefore, the position of the crucial plane in three-dimensional scenic can determine the value of key point and further determine that
The shape of the curve greyscale transformation function.
For example, key point can be identified below.
First, in the case where quadratic function is chosen as curve greyscale transformation function, in GT0-255 on direction of principal axis
Scope be divided into determine quadratic function needed for three planes the equal quantity of quantity, as shown in the chain-dotted line in Fig. 8.
Then, a chain-dotted line（It is such as bottom one）With the intersection point of plane P3 as a key point, in Fig. 8
Shown in circle.
The determination mode of key point is foregoing illustrated, but is not limited to this；P4 can for example be selected with one above
Dashdotted intersection point is used as key point, or ambit rule 0-255 or is brokenly divided into greater number, as long as can
Determine the parameter of quadratic function.
After key point is determined, according to mathematical principle, using in the scope and plane P3 of the plane P1-P2 of both sides
The position of key point can limit quadratic function：
GT=aGH 2+b GH+ c, if P1<GH<P2;
And
GT=0, if GH<P1;
GT=255, if GH>P2;
Wherein the value of a, b and c can basis（P1,0）、（P3,255/3）With（P2,255）The value of these three points is uniquely true
It is fixed.After the parameter of the quadratic function is determined, it is possible to current gray level scope WDInterior gray value is according to the secondary letter
Number is mapped on the tonal range 0-255 of display and is shown one by one.And WDOutside gray value then distinguish over the display
It is shown as black（Gray value is 0）Or it is pure white（Gray value 255）, that is to say, that anatomical structure corresponding with these gray values
Will not specifically present over the display.
Therefore, the position according to the scope between two planes and crucial plane is assured that in regular display
On the parameter of curve greyscale transformation function that is shown.Display parameters set device 203 receive regulation two planes in outside and
User's operation of the position of crucial plane, so as to adjust the scope and key point for determining curve greyscale transformation function.Then
Two dimensional image display unit 204 is according to the curve greyscale transformation function determined by scope and key point come display image.
The parameters setting process according to present embodiment, but curve greyscale transformation letter are illustrated by taking quadratic function as an example above
Number is not limited to quadratic function, can also be other higher order functionalities and exponential function etc..Now, display parameters can be these functions
Respective parameter.
According to one embodiment, in the case where type function is not known in advance, display parameters set device 203 can be with
Final curve greyscale transformation function is fitted using spline function by multiple key points, so as to by 2-dimensional image display device
The 203 two dimension displays for carrying out low level difference image.
The implementation method also allows to obtain effect as in the first embodiment.In fact, according to present embodiment, no
It is only allowed on display and anatomical structure corresponding with greylevel window is clearly illustrated with enhanced contrast, also allows handle and put down
The corresponding first structure of tonal range corresponding relative to the tonal range between plane P3 to P1 between P2 to the P4 of face
Two structures are shown with bigger contrast, although this is due to being assigned with identical display resource, first to two structures
The tonal range of structure is relatively smaller.
Arrangement described above is the exemplary and/or preferred module for implementing treatment described in this application.This
A little modules can be hardware cell（Field programmable gate array, digital signal processor or application specific integrated circuit etc.）And/or
Software module（Such as computer-readable program）.Module for implementing each step is not described at large below.However, only
The step of having certain treatment of execution, it is possible to have the corresponding functional module or device for implementing same treatment（By hardware
And/or software implementation）.The technical side limited by all combinations of described step and device corresponding with these steps
Case is all included in present disclosure, as long as these technical schemes that they are constituted are complete and applicable.
Additionally, the equipment being made up of various devices can be incorporated into the hardware of such as computer etc as functional module
In equipment.In addition to these functional modules, computer is it is of course possible to have other hardware or software part.
According to another embodiment herein, display device can include that image vision-control equipment 200 is normal with other
Rule part.
The flow chart of the image vision-control method of an implementation method according to the application is described referring next to Fig. 9.
When user determines to show and adjust image interested, start to perform the method.
In step S901, the input of high-order difference image is received.The step can for example be performed by input unit 201.
In step S902, three-dimensional scenic is shown, the three-dimensional scenic includes the threedimensional model according to high potential difference image creation
With at least two planes for the threedimensional model.The step can for example be performed by three-dimensional scenic display device 202.Using three
In the case of dimension coordinate system, the location of pixels in x, y coordinate representation high position difference image, z coordinate represents the gray value of respective pixel,
At least two plane is vertical with z-axis.
In step S903, operated come phase according to for changing the user of at least one plane position in the z-axis direction
Should ground setting display parameters.The step for example can set device 203 and perform by display parameters.
In step S904, the low level difference image drawn according to high-order difference image is adjusted according to set display parameters
Two dimension display.The step can for example be performed by 2-dimensional image display device 204.
According to one embodiment, display parameters can be window position and the window width of greylevel window.Figure 10 is shown in such case
Under specific image vision-control process flow chart.
In step S1001, two planes of the display for threedimensional model in three-dimensional scenic.The step for example can be by three
Dimension scene display device 202 is performed.
It is in step S1002, the scope between the two planes is corresponding with window width and the window position of greylevel window,
That is determining window width and window position with the scope.The step for example can set device 203 and perform by display parameters.
In the step s 1003, drawn according to high-order difference image to be shown according to the window width corresponding with the scope and window position
Low level difference image.The step can for example be performed by 2-dimensional image display device 204.
According to another embodiment, display parameters can be the parameter of the curve greyscale transformation function of greylevel window.Figure 11
The flow chart of specific image vision-control process in this case is shown.
In step S1101, at least three planes of the display for threedimensional model in three-dimensional scenic.The step for example may be used
Performed by three-dimensional scenic display device 202.
In step S1102, the scope between the plane of most both sides it is corresponding with the window width of greylevel window and make to
Few another plane is corresponding with for determining the key point of curve greyscale transformation function.The step can for example be set by display parameters
Device 203 is put to perform.
In step S1103, shown according to height according to the curve greyscale transformation function determined by this at least three plane
The low level difference image that potential difference image draws.The step can for example be performed by 2-dimensional image display device 204.
Although not shown, step 902 also include being represented by different colours or different opacity threedimensional model
In greylevel window, greylevel window, the upward structure for overflowing greylevel window are overflowed downwards.
The image vision-control method can also include the upward spilling of display threedimensional model or overflow greylevel window downwards
Projection of the structure on x/y plane the step of, and the view of three-dimensional scenic is adjusted according to second user operation（Including adjusting
The position and direction of section position of camera, the direction of view and the visual field and three-dimensional scenic）The step of.Not limit institute herein
There is step, it is to be understood that can also include being used for and corresponding functional module or device（By hardware and/or software implementation）It is real
Apply other steps of same treatment.
Although implementation method above concentrates on medical application, the application is not limited to medical application, and can be extensive
Any image adjustment that ground is presented for 2D images.The other embodiment of the application of citing description below.
In industrial nondestructive testing field, the equipment such as X-ray detectoscope and supersonic detector has and medical imaging devices
Similar image display application.Using the image vision-control equipment of the application, by three-dimensional scenic display device with z coordinate table
Show the X-ray exposure intensity level or ultrasonic echo intensity value of the pixel of the view data of defectoscope to show threedimensional model, and lead to
Cross display parameters device is set and display parameters are adjusted according to user's operation of the position for changing the plane in three-dimensional scenic, can be with
The image display parameters of defectoscope are made to adjust more accurate and directly perceived.
In field of remote sensing image processing, fine-tuning for remote sensing images can be provided using the application, wherein by three
Dimension scene display device can represent remote sensing images pixel with z coordinate（Pixel）Certain spectral band gray value, and lead to
Cross display parameters and user operation of the device according to the position for changing the plane in three-dimensional scenic is set to the radiant correction of the wave band
Parameter is carried out fine and intuitively adjusted.
Further, the application can also be applied to Color Image Processing.
For example, in computer picture editor field, the image vision-control equipment of the application can also be used to provide to image
Color carries out fine intuitively calibration and deflection treatment.Specifically, image is represented with z coordinate by three-dimensional scenic display device
The color value of one of each Color Channel of pixel, brightness value or color value or brightness value based on image pixel and calculate
Any value；Setting device by display parameters can cause that the plane in three-dimensional scenic can be used in adjusting the Color Channel
The display parameters of color value, brightness value or the value for being calculated.Additionally, three-dimensional scenic display device can also be same in some way
When show the threedimensional model and its corresponding plane of different color channels.
Figure 12 is the block diagram of the hardware configuration of the computer system for illustrating the ability to implementation presently filed embodiment.
As shown in Figure 12, computer system includes the processing unit 1201 connected via system bus 1204, read-only deposits
Reservoir 1202, random access memory 1203 and input/output interface 1205, and connected via input/output interface 1205
Input block 1206, output unit 1207, memory cell 1208, communication unit 1209 and driver 1210.Program can be pre-
First record the ROM of built-in recording medium in as computer（Read-only storage）1202 or memory cell 1208 in.Or
Person, program can be stored（Record）In removable media 1211.Herein, removable media 1211 include such as floppy disk,
CD-ROM（Compact disk read-only storage）、MO（Magneto-optic）Disk, DVD（Digital versatile disc）, disk, semiconductor memory etc..
Input block 1206 is configured with keyboard, mouse, microphone etc..In addition, output unit 1207 is configured with LCD（Liquid crystal
Display）, loudspeaker etc..
In addition, except program is installed to computer from above-mentioned removable media 1211 by driver 1210
Outside configuration, can by communication network or radio network download program to computer with installed in built-in storage unit 1208
In.In other words, can for example wirelessly by the satellite for digital satellite broadcasting from download point to computer or with
Wired mode passes through such as LAN（LAN）Or the network of internet etc. is to computer transmission procedure.
If manipulated by user to input block 1206 etc., via input/output interface 1205 to computer system
Order is have input, then CPU1201 performs the program stored in ROM1202 according to order.Or, CPU1201 is memory cell
The program stored in 1208 is carried on RAM1203 with configuration processor.
Therefore, CPU1201 is performed according to some treatment of above-mentioned flow chart or by above-mentioned block diagram
Configuration perform treatment.Next, if it is necessary, then CPU1201 allows the result for the treatment of for example to be connect by input/output
Mouth 1205 is exported from output unit 1207, transmitted from communication unit 1209, record etc. in memory cell 1208.
In addition, program can be by a computer（Processor）Perform.In addition, program can be by multiple computers being distributed
The mode of formula is processed.Furthermore it is possible to program transportation is performed to remote computer.
Computer system shown in Figure 12 is merely illustrative and is never intended to enter invention, its application, or uses
Any limitation of row.
Computer system shown in Figure 12 can be incorporated in any embodiment, as stand-alone computer, or can also may be used
As the processing system in equipment, one or more unnecessary components can be removed, it is also possible to be added to one or more
The additional component of multiple.
The present processes and system can in many ways be implemented.For example, can by software, hardware, firmware,
Or its any combinations implements the present processes and system.The order of above-mentioned method and step is merely illustrative, the application
Method and step be not limited to order described in detail above, unless otherwise clearly stated.Additionally, in some embodiments
In, the application can also be implemented as recording program in the recording medium, and it is included for realizing according to the present processes
Machine readable instructions.Thus, the application also covers storage for realizing the recording medium of the program according to the present processes.
Although describing some specific embodiments of the application in detail by example, those skilled in the art should
Work as understanding, above-mentioned example is merely illustrative without limitation scope of the present application.It should be appreciated by those skilled in the art that above-mentioned reality
Applying example can be changed without deviating from scope of the present application and essence.Scope of the present application is limited by appended claim
's.
Claims (10)
1. a kind of image vision-control equipment, including：
Input unit, is configured as receiving the input of high-order difference image；
Three-dimensional scenic display device, is configured as showing three-dimensional scenic, the three-dimensional scenic is included according to high potential difference image creation
Threedimensional model and at least two planes for the threedimensional model, using in the case of three-dimensional system of coordinate, x, y coordinate representation
Location of pixels in high-order difference image, z coordinate represents the gray value of respective pixel, and at least two plane is vertical with z-axis；
Display parameters set device, are configured as basis for changing the user of at least one plane position in the z-axis direction
Operate correspondingly to set display parameters；And
2-dimensional image display device, be configured as the display parameters according to set by adjust according to high-order difference image draw it is low
The two dimension display of potential difference image.
2. image vision-control equipment according to claim 1, wherein,
The three-dimensional scenic display device is additionally configured to show in the case where display parameters are the window and window width of greylevel window
Show two planes；
Display parameters setting device is additionally configured to window width and window the scope between described two planes and greylevel window
Position is corresponding；And
2-dimensional image display device is additionally configured to be shown according to high potential difference according to the window width corresponding with the scope and window position
The low level difference image that image draws.
3. image vision-control equipment according to claim 1, wherein,
The three-dimensional scenic display device be additionally configured to be in display parameters the curve greyscale transformation function of greylevel window ginseng
At least three planes are shown in the case of number；
The scope that display parameters setting device is additionally configured between the plane most both sides is corresponding with the window width of greylevel window
And make at least another plane corresponding with for determining the key point of curve greyscale transformation function；And
2-dimensional image display device is additionally configured to come according to the curve greyscale transformation function determined by least three plane
The low level difference image that display draws according to high-order difference image.
4. according to the image vision-control equipment that one of claim 1-3 is described, wherein, user's operation is in the threedimensional model
In drag the operation of at least one plane in the z-axis direction.
5. according to the image vision-control equipment that one of claim 1-3 is described, wherein, user's operation is shown in two dimensional image
Scheduled operation on device.
6. the image vision-control equipment according to Claims 2 or 3, wherein, the three-dimensional scenic display device is also matched somebody with somebody
Be set to by different colours or different opacity represent threedimensional model in greylevel window, downwards overflow greylevel window,
The structure of greylevel window is overflowed upwards.
7. the image vision-control equipment according to Claims 2 or 3, also including assistant display device, is configured as display
The upward spilling of threedimensional model overflows downwards projection of the structure of greylevel window on x/y plane.
8. image vision-control equipment according to claim 7, the 2-dimensional image display device is additionally configured to low
The part corresponding with the projection is indicated on potential difference image.
9. a kind of display device, it is characterised in that including the image vision-control equipment as described in one of claim 1-8.
10. a kind of image vision-control method, including：
Input step, receives the input of high-order difference image；
Three-dimensional scenic step display, shows three-dimensional scenic, and the three-dimensional scenic includes the three-dimensional mould according to high potential difference image creation
Type and at least two planes for the threedimensional model, in the case of using three-dimensional system of coordinate, x, y coordinate representation high potential difference figure
Location of pixels as in, z coordinate represents the gray value of respective pixel, and at least two plane is vertical with z-axis；
Display parameters setting steps, operate come phase according to for changing the user of at least one plane position in the z-axis direction
Should ground setting display parameters；And
Two dimensional image step display, the low level difference image drawn according to high-order difference image is adjusted according to set display parameters
Two dimension display.
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