CN105208329B - A kind of image data selecting method and relevant apparatus - Google Patents
A kind of image data selecting method and relevant apparatus Download PDFInfo
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- CN105208329B CN105208329B CN201510564125.1A CN201510564125A CN105208329B CN 105208329 B CN105208329 B CN 105208329B CN 201510564125 A CN201510564125 A CN 201510564125A CN 105208329 B CN105208329 B CN 105208329B
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Abstract
The embodiment of the invention discloses a kind of image data selecting methods, the identification point chosen for accurately determining user in the picture.The method comprise the steps that image data selection device obtains the information of the identification point in present image, wherein the display area of identification point includes effective display area domain and invalid display area；Selection target region in the picture；Be there is into the identification point being overlapped with target area in effective display area domain and is determined as the identification point chosen.The embodiment of the invention also provides relevant image data selection devices.
Description
Technical field
The present invention relates to field of image processing more particularly to a kind of image data selecting methods and relevant apparatus.
Background technique
In recent years, image viewing technology develops rapidly, and is not only widely used in the industrial production, also gradually
The field that daily service, public safety etc. are many and civil life is closely bound up is penetrated into.In visualization technique, on image
Multiple identification points can be distributed with, these identification points are used to identify element in image, if such as image is map, on map
Building, street, vehicle etc. be map element, if image is the monitoring figure of public security department, the camera in monitoring figure
The as element of monitoring figure.Mark point is a coordinate points in itself, for vivider display, in practical applications, technology people
Member often indicates mark point using figure or icon.
User can draw a circle to approve target area when using visualization technique on the image, to select to be located in target area
Identification point.Since mark point essence is coordinate, the general icon by indicating point coordinate position or identification point
Center judge the point whether inside target area.
Due to use figure perhaps icon representation identification point and figure or icon can occupy certain area, mark
The coordinate or center of knowing point can not show the physical location of identification point well.Therefore according to the coordinate of identification point or in
Heart position judges whether identification point is located at the inside of target area enough rationally.For example, user wishes to select some mark
Point, and the target area of user's delineation has obviously enumerated the partial region of the identification point, but due in the identification point
Heart position is not in target area, then visualization system thinks that the identification point is not selected.This results in visualization system not
It can accurately determine that the identification point that user chooses, user experience are bad.
Summary of the invention
The embodiment of the invention provides a kind of image data selecting methods, for promoting user experience.
Image data selecting method provided in an embodiment of the present invention includes:
The information of the identification point in present image is obtained, the identification point is used to identify the element in described image, described
The display area of identification point is in geometry, and the display area of the identification point includes effective display area domain and/or invalid display
Region；
The selection target region in described image；
Be there is into the identification point being overlapped with the target area in effective display area domain, is determined as the identification point chosen.
The embodiment of the invention also provides a kind of image data selection devices, comprising:
Data obtaining module, for obtaining the information of the identification point in present image, the identification point is described for identifying
Element in image, the display area of the identification point are in geometry, and the display area of the identification point includes effectively display
Region and/or invalid display area；
Region selection module, for the selection target region in described image；
Data selecting module is determined as effective display area domain to be had the identification point being overlapped with the target area
The identification point chosen.
The embodiment of the invention provides a kind of image data selecting methods, wherein image data selection device obtains current
The information of identification point in image, wherein the display area of identification point includes effective display area domain and invalid display area；Scheming
The selection target region as in；Be there is into the identification point being overlapped with target area in effective display area domain and is determined as the identification point chosen.
In the embodiment of the present invention, image data selection device is not further according to the center of identification point to determine whether choose the mark
Point, but according to the visible effective display area domain of identification point user to determine whether choose the identification point, as long as user's delineation
Target area enumerates the partially visible region of some identification point, which will be identified and choose.Such selection method
Make it possible to accurately determine the identification point that user chooses, better user experience.
Detailed description of the invention
Fig. 1 is image data selecting method one embodiment flow chart in the embodiment of the present invention；
Fig. 2 (a) is the schematic diagram of vector identification point in the embodiment of the present invention；
Fig. 2 (b) is the schematic diagram of icon identification point in the embodiment of the present invention；
Fig. 3 (a) is application scenarios schematic diagram of the present invention；
Fig. 3 (b) is another schematic diagram of application scenarios of the present invention；
Fig. 3 (c) is another schematic diagram of application scenarios of the present invention；
Fig. 3 (d) is another schematic diagram of application scenarios of the present invention；
Fig. 4 is image data selection device one embodiment structure chart in the embodiment of the present invention；
Fig. 5 is another example structure figure of image data selection device in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of image data selecting methods, for improving the standard of the identification point in selection image
Exactness.The embodiment of the invention also provides relevant image data selection devices, will be described respectively below.
Image data of the image data selecting method provided in an embodiment of the present invention suitable for visualization system selects dress
It sets, basic procedure is referring to Fig. 1, include:
101, the information of the identification point in present image is obtained；
Image data selection device obtains the information of the identification point in present image, and the identification point is for identifying in image
Element.Wherein, certain geometry is presented in the display area of the identification point, and the display area of the identification point includes effectively display
Region and/or invalid display area.
In general, the display area of identification point is rectangle, round or other geometry can also be presented in certain scenes
Shape, in the present embodiment without limitation.
The effective display area domain of identification point is used to indicate to be shown to the part of user, mark in the display area of identification point
Know the part that user is not displayed in display area of the invalid display area of point for indicating identification point.The invalid of identification point shows
Show that region can be transparent, so that invalid display area is invisible to user.
102, selection target region in the picture；
Image data selection device selection target region in current image.Specifically, image data selection device can
To receive the selection instruction of user, according to the selection instruction in present image selection target region.Image data selection device
Can also selection target region by other means, in the present embodiment without limitation.Target area can for round, rectangle or
Other geometries, it might even be possible to for the irregular shape that user draws, in the present embodiment without limitation.
103, be there is into the identification point being overlapped with target area in effective display area domain, be determined as the identification point chosen.
After image data selection device has selected target area, by the identification point in current image, effective display area
There is the identification point being overlapped with target area and be determined as the identification point chosen in domain.Image data selection device determines effective display area
Domain will be described in detail with the specific method that target area has the identification point being overlapped in the embodiment below, herein without limitation.
Present embodiments provide a kind of image data selecting method, wherein image data selection device obtains present image
In identification point information, wherein the display area of identification point includes effective display area domain and invalid display area；In the picture
Selection target region；Be there is into the identification point being overlapped with target area in effective display area domain and is determined as the identification point chosen.This reality
Apply in example, image data selection device not further according to the center of identification point to determine whether choose the identification point, but root
According to the visible effective display area domain of identification point user to determine whether choosing the identification point, as long as the target area capsule of user's delineation
The partially visible region of some identification point is included, which will be identified and choose.Such selection method makes it possible to standard
The identification point that true determination user chooses, better user experience.
The type of identification point can there are many kinds of.In general, identification point includes vector identification point and/or icon identification point.
The schematic diagram of vector identification point please refers to Fig. 2 (a), and display area is circle, and the entire display area of vector identification point is all
For effective display area domain.As long as it should be understood that being aware of the center of circle and the radius of vector identification point, so that it may determine vector identification
The band of position of point.Therefore, the information of vector identification point generally comprises: the central coordinate of circle and radius of vector identification point.
In order to enable identification point is more lively true, bright and colourful, there is also a kind of icon marks in technology at this stage
Point, please refers to Fig. 2 (b).The display area of icon identification point is that rectangle (is mentioned rectangular in any one place of the embodiment of the present invention
Shape includes square), technical staff draws the icon of arbitrary shape in the rectangular region, and the icon part is shown
Show to user.The icon part is exactly the effective display area domain of icon identification point, is removed except icon part in the rectangle
Region is exactly invalid display area.Display area is generally transparent in vain, invisible to user.It should be understood that true
Determine the effective display area domain of icon identification point, it is thus necessary to determine that the length of the display area of icon identification point and wide, display area seat
Mark (can be the coordinate of the center of display area, or the coordinate on a vertex of display area, or aobvious
Show region other point coordinate, herein without limitation) and the display area of the icon identification point in icon part.
If identification point be vector identification point, image data selection device can according to the central coordinate of circle of vector identification point with
And radius, determine the display area (i.e. effective display area domain) of vector identification point.If display area and the target of vector identification point
There is intersection in region, it is determined that the vector identification point is selected.If the display area of vector identification point does not have with target area
Intersection, it is determined that vector identification point is not selected.
If identification point is icon identification point, image data selection device can be according to the display area of icon identification point
Length and width, coordinate and icon part determine the effective display area domain of icon identification point.If the effective display area of icon identification point
There are intersection in domain and target area, it is determined that the icon identification point is selected.If the effective display area domain of icon identification point with
Target area does not have intersection, it is determined that the icon identification point is not selected.
The region of icon part is generally specified when icon makes or by automatic program identification, due to icon identification point
The shape of icon part can be it is irregular, therefore determine icon identification point effective display area domain need to consume more image
Process resource.Therefore, to determine the effective display area domain of all icon identification points in image, and having for icon identification point is determined
Whether effect display area is located in target area, the computer processing time for needing to grow very much.In order to reach the mesh to economize on resources
, image data selection device is when selecting effective display area domain to there is the icon identification point being overlapped with target area, Ke Yixian
In current icon identification point, primarily determine that display area has the temporary identifier point being overlapped with target area.Due to display
Region is the rectangle of rule, it is thus determined that the position of display area does not need to consume too many image processing resource, thus
Less resource can be only consumed, the range of selection has just been narrowed down into less temporary identifier by whole icon identification points
Point.Then, image data selection determines the effective display area domain of temporary identifier point again, and by effective display area domain and target area
There are the temporary identifier of coincidence point, it is determined as the icon identification point chosen.
Above-described embodiment in order to facilitate understanding will be retouched by taking above-described embodiment concrete application scene as an example below
It states:
The principle of the visualization system of public security department is as follows: public security department is imaged by disposing in compass of competency region
Head, to realize the real time monitoring to compass of competency.In this way when there is unexpected happen, related personnel can pass through monitoring video
Quickly understand incident situation.Visualization system can show the camera of the placement of public security department on picture.In this way, phase
Pass personnel can select the camera that may take the site of the accident, then recall the monitoring of camera according to incident region
Video recording.
The graphic interface of the visualization system please refers to 3 (a).Image data selection device acquisition in visualization system is worked as
Length and width, coordinate and the icon part of each icon identification point in preceding image, and schemed icon identification point according to the information
As showing user on interface.Wherein, each camera icon is an icon identification point, the display of each icon identification point
Practical region is a square, and the inscribe circular portion in square draws round camera.But in the icon identification point, only
The part of the round camera of drafting is shown to user, and rest part user is invisible.
At a certain moment, accident occurs at point A.Public security department personnel draw a circle to approve a little on the graphic interface of visualization system
The range of 500 meters of A prescription circle, it is desirable to the monitoring video for recalling the camera within the scope of this, as shown in Fig. 3 (b).
Image data selection device receives the instruction that target area is drawn a circle to approve on graphic interface, and according to the instruction selected element
It is target area in 500 meters of A prescription circle, and the display area of square is had into 3 icons being overlapped with target area and is identified
Point is selected as temporary identifier point, as shown in Fig. 3 (c).
Image data selection device again by 3 temporary identifier points, deposit with target area by round camera icon part
It is determined as the icon identification point chosen in 2 temporary identifier points of coincidence, and by the icon identification point chosen by deepening shade
Mode show user, as shown in Fig. 3 (d).
The embodiment of the invention also provides relevant image data selection devices, are suitable for visualization system.Please refer to figure
4, the basic structure of image data selection device provided in an embodiment of the present invention includes:
Data obtaining module 401, for obtaining the information of the identification point in present image, the identification point is for identifying institute
The element in image is stated, the display area of the identification point is in geometry, and the display area of the identification point includes effectively aobvious
Show region and/or invalid display area；
Region selection module 402, for the selection target region in described image；
Data selecting module 403 is determined for effective display area domain to be had the identification point being overlapped with the target area
For the identification point chosen.
Present embodiments provide a kind of image data selection device, wherein data obtaining module 401 obtains in present image
Identification point information, wherein the display area of identification point includes effective display area domain and invalid display area；Regional choice mould
The selection target region in the picture of block 402；There is the mark being overlapped with target area by data selecting module 403 in effective display area domain
Know point and is determined as the identification point chosen.In the present embodiment, image data selection device does not come further according to the center of identification point
Judge whether to choose the identification point, but according to the visible effective display area domain of identification point user to determine whether choosing the mark
Point, as long as the target area of user's delineation enumerates the partially visible region of some identification point, which will be identified choosing
In.Such selection method makes it possible to accurately determine the identification point that user chooses, better user experience.
In some embodiments of the invention, the type of identification point includes: vector identification point and/or icon identification point, institute
The display area of vector identification point is stated as circle, and the display area of vector identification point is effective display area domain；It is described
The display area of icon identification point is rectangle, the effective display area domain of the icon identification point are as follows: be plotted in the icon mark
Know the icon in the display area of point.
In some embodiments of the invention, the information of the vector identification point includes: the center of circle of the vector identification point
The radius of coordinate and vector identification point.In some embodiments of the invention, the information of the icon identification point includes:
The length of the display area of the icon identification point, the icon identification point display area wide, described icon identification point it is aobvious
Show the coordinate in region and the icon part of the icon identification point.
In some embodiments of the invention, data selecting module may further include area determination unit and data choosing
Unit is selected, referring to Fig. 5, the structure of another image data selection device provided in an embodiment of the present invention includes:
Data obtaining module 501, for obtaining the information of the identification point in present image, the identification point is for identifying institute
The element in image is stated, the display area of the identification point is in geometry, and the display area of the identification point includes effectively aobvious
Show region and/or invalid display area；
Region selection module 502, for the selection target region in described image；
Data selecting module 503 is determined for effective display area domain to be had the identification point being overlapped with the target area
For the identification point chosen.In the present embodiment, data selecting module 503 includes area determination unit 5031 and data selection unit
5032, in which:
The area determination unit 5031, for according to the vector identification point central coordinate of circle and the vector identification
The radius of point, determines the display area of the vector identification point；
The data selection unit 5032, for the display area according to the vector identification point, by display area and institute
It states target area and there is the vector identification point being overlapped, be determined as the identification point chosen；
And/or
The area determination unit 5031, for the length according to the display area of the icon identification point, the icon mark
Know the coordinate of the display area of wide, the described icon identification point of the display area of point and the icon part of the icon identification point,
Determine the effective display area domain of the icon identification point；
The data selection unit 5032 will effectively be shown for the effective display area domain according to the icon identification point
There is the icon identification point being overlapped with the target area in region, be determined as the identification point chosen.
In some embodiments of the invention, area determination unit 5031 is specifically used for:
According to the length of the display area of the icon identification point, wide, the described figure of the display area of the icon identification point
The coordinate for marking the display area of identification point, determines the display area of the icon identification point；
Be there is into the icon identification point being overlapped with the target area in display area, is determined as temporary identifier point；
According to the icon part of the temporary identifier point, the effective display area domain of the temporary identifier point is determined；
The data selection unit 5032 is specifically used for:
According to the effective display area domain of the temporary identifier point, effective display area domain is existed with the target area and is overlapped
Temporary identifier point, be determined as the identification point chosen.
Above-described embodiment in order to facilitate understanding will be retouched by taking the concrete application scene of one embodiment above as an example below
It states.
The principle of the visualization system of public security department is as follows: public security department is imaged by disposing in compass of competency region
Head, to realize the real time monitoring to compass of competency.In this way when there is unexpected happen, related personnel can pass through monitoring video
Quickly understand incident situation.Visualization system can show the camera of the placement of public security department on picture.In this way, phase
Pass personnel can select the camera that may take the site of the accident, then recall the monitoring of camera according to incident region
Video recording.
The graphic interface of the visualization system please refers to 3 (a).The acquisition of data obtaining module 501 in visualization system is worked as
Length and width, coordinate and the icon part of each icon identification point in preceding image, and schemed icon identification point according to the information
As showing user on interface.Wherein, each camera icon is an icon identification point, the display of each icon identification point
Practical region is a square, and the inscribe circular portion in square draws round camera.But in the icon identification point, only
The part of the round camera of drafting is shown to user, and rest part user is invisible.
At a certain moment, accident occurs at point A.Public security department personnel draw a circle to approve a little on the graphic interface of visualization system
The range of 500 meters of A prescription circle, it is desirable to the monitoring video for recalling the camera within the scope of this, as shown in Fig. 3 (b).
Region selection module 502 receives the instruction that target area is drawn a circle to approve on graphic interface, and according to instruction selected element A
It is target area in 500 meters of prescription circle, area determination unit 5031, which has the display area of square with target area, to be overlapped
3 icon identification points be selected as temporary identifier point, as shown in Fig. 3 (c).
Area determination unit 5031 determines in 3 temporary identifier points that the position of round camera icon part, data are selected
It selects unit 5032 and round camera icon is determined as the icon mark chosen in the presence of 2 temporary identifier points being overlapped with target area
Know point.The icon identification point chosen is showed user by way of deepening shade by image data selection device, such as Fig. 3 (d)
It is shown.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of image data selecting method characterized by comprising
The information of the identification point in present image is obtained, the identification point is used to identify the element in described image, the mark
The display area of point is in geometry, and the display area of the identification point includes effective display area domain, alternatively, the identification point
Display area includes the effective display area domain and invalid display area, and the effective display area domain is for indicating the identification point
Display area in can be shown to the part of user, the invalid display area is used to indicate the display area of the identification point
In be not displayed to the part of user；
The selection target region in described image；
Be there is into the identification point being overlapped with the target area in the effective display area domain, is determined as the identification point chosen.
2. image data selecting method according to claim 1, which is characterized in that the type of the identification point includes:
The display area of vector identification point, the vector identification point is circle, and the display area of vector identification point is
Effective display area domain；
And/or icon identification point, the display area of the icon identification point are rectangle, the effective of the icon identification point shows
Show region are as follows: the icon being plotted in the display area of the icon identification point.
3. image data selecting method according to claim 2, which is characterized in that the packet of the vector identification point
It includes: the central coordinate of circle of the vector identification point and the radius of vector identification point；
And/or
The information of the icon identification point include: the length of the display area of the icon identification point, the icon identification point it is aobvious
Show the coordinate of the display area of wide, the described icon identification point in region and the icon part of the icon identification point.
4. image data selecting method according to claim 3, which is characterized in that it is described by effective display area domain with it is described
There is the identification point being overlapped in target area, the identification point for being determined as choosing includes:
According to the radius of the central coordinate of circle of the vector identification point and vector identification point, the vector identification point is determined
Display area；
According to the display area of the vector identification point, be there is into the vector identification being overlapped with the target area in display area
Point is determined as the identification point chosen；
And/or
According to the length of the display area of the icon identification point, wide, the described icon mark of the display area of the icon identification point
Know the coordinate of the display area of point and the icon part of the icon identification point, determines the effective display area of the icon identification point
Domain；
According to the effective display area domain of the icon identification point, be there is into the figure being overlapped with the target area in effective display area domain
Identification point is marked, the identification point chosen is determined as.
5. image data selecting method according to claim 4, which is characterized in that described according to the icon identification point
The length of display area, the icon identification point display area wide, described icon identification point display area coordinate and institute
The icon part for stating icon identification point determines that the effective display area domain of the icon identification point includes:
According to the length of the display area of the icon identification point, wide, the described icon mark of the display area of the icon identification point
The coordinate for knowing the display area of point, determines the display area of the icon identification point；
Be there is into the icon identification point being overlapped with the target area in display area, is determined as temporary identifier point；
According to the icon part of the temporary identifier point, the effective display area domain of the temporary identifier point is determined；
Effective display area domain is existed with the target area and is overlapped by the effective display area domain according to the icon identification point
Icon identification point, the identification point for being determined as choosing includes:
According to the effective display area domain of the temporary identifier point, effective display area domain is faced with the target area in the presence of what is be overlapped
When identification point, be determined as the identification point chosen.
6. a kind of image data selection device characterized by comprising
Data obtaining module, for obtaining the information of the identification point in present image, the identification point is for identifying described image
In element, the display area of the identification point is in geometry, and the display area of the identification point includes effective display area domain,
Alternatively, the display area of the identification point includes the effective display area domain and invalid display area, the effective display area domain
The part of user can be shown in display area for indicating the identification point, the invalid display area is for indicating institute
State the part that user is not displayed in the display area of identification point；
Region selection module, for the selection target region in described image；
Data selecting module is determined as the effective display area domain to be had the identification point being overlapped with the target area
The identification point chosen.
7. image data selection device according to claim 6, which is characterized in that the type of the identification point includes:
The display area of vector identification point, the vector identification point is circle, and the display area of vector identification point is
Effective display area domain；
And/or icon identification point, the display area of the icon identification point are rectangle, the effective of the icon identification point shows
Show region are as follows: the icon being plotted in the display area of the icon identification point.
8. image data selection device according to claim 7, which is characterized in that the packet of the vector identification point
It includes: the central coordinate of circle of the vector identification point and the radius of vector identification point；
And/or
The information of the icon identification point include: the length of the display area of the icon identification point, the icon identification point it is aobvious
Show the coordinate of the display area of wide, the described icon identification point in region and the icon part of the icon identification point.
9. image data selection device according to claim 8, which is characterized in that the data selecting module includes region
Determination unit and data selection unit, in which:
The area determination unit, for according to the central coordinate of circle of the vector identification point and the radius of vector identification point,
Determine the display area of the vector identification point；
The data selection unit, for the display area according to the vector identification point, by display area and the target area
There is the vector identification point being overlapped in domain, be determined as the identification point chosen；
And/or
The area determination unit, for according to the length of the display area of the icon identification point, the icon identification point it is aobvious
Show the coordinate of the display area of wide, the described icon identification point in region and the icon part of the icon identification point, determine described in
The effective display area domain of icon identification point；
The data selection unit, for the effective display area domain according to the icon identification point, by effective display area domain and institute
It states target area and there is the icon identification point being overlapped, be determined as the identification point chosen.
10. image data selection device according to claim 9, which is characterized in that the area determination unit is specifically used
In:
According to the length of the display area of the icon identification point, wide, the described icon mark of the display area of the icon identification point
The coordinate for knowing the display area of point, determines the display area of the icon identification point；
Be there is into the icon identification point being overlapped with the target area in display area, is determined as temporary identifier point；
According to the icon part of the temporary identifier point, the effective display area domain of the temporary identifier point is determined；
The data selection unit is specifically used for:
According to the effective display area domain of the temporary identifier point, effective display area domain is faced with the target area in the presence of what is be overlapped
When identification point, be determined as the identification point chosen.
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