CN113810606A - Shooting target position determining method, shooting target position determining equipment and computer storage medium - Google Patents
Shooting target position determining method, shooting target position determining equipment and computer storage medium Download PDFInfo
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- CN113810606A CN113810606A CN202110988601.8A CN202110988601A CN113810606A CN 113810606 A CN113810606 A CN 113810606A CN 202110988601 A CN202110988601 A CN 202110988601A CN 113810606 A CN113810606 A CN 113810606A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/12—Systems for determining distance or velocity not using reflection or reradiation using electromagnetic waves other than radio waves
Abstract
The application provides a shot target position determining method, equipment and a computer storage medium, which mainly comprise the steps of obtaining position information and posture information of a shooting device when a shot target is in a preset shooting area of the shooting device; and acquiring offset information, radian information and radius information of the shooting device according to the position information and the posture information, and acquiring target position information of a shooting target according to the offset information, the radian information and the radius information. Therefore, the target position information of the shot target can be rapidly and accurately determined, and the shot target can be automatically calibrated in various monitoring scenes.
Description
Technical Field
The embodiment of the application relates to the technical field of geographic position determination, in particular to a shooting target position determining method, shooting target position determining equipment and a computer storage medium.
Background
In the existing AR large screen display process, if a user wants to find one or more regions of interest (POIs), the user usually needs to manually control the rotation of the camera to find the regions of interest in the map, and in addition, the previously determined regions of interest cannot be saved, so that the search needs to be repeated every time the task is restarted. Therefore, the existing POI label calibration technology wastes time, certain errors possibly exist between the manually generated POI label and the actual POI label, and the use convenience and the user experience are greatly reduced.
In view of the foregoing, it is desirable to provide an improved POI tag generation technique to overcome the problems in the prior art.
Disclosure of Invention
In view of the foregoing, the present application provides a photographic target position determination method, apparatus, and computer storage medium that can quickly and accurately determine position information of a photographic target.
A first aspect of the present application provides a method of acquiring position information and attitude information of a photographing apparatus when a photographic subject is in a preset photographing region of the photographing apparatus; acquiring offset information, radian information and radius information of the shooting device according to the position information and the posture information; and acquiring target position information of the shooting target according to the offset information, the radian information and the radius information of the shooting device.
A second aspect of the present application provides a computer storage medium, wherein the computer storage medium stores instructions for executing the steps of the shooting target position determining method according to the first aspect.
The third aspect of the present application provides a photographic target position determination apparatus, including: an acquisition module for acquiring position information and attitude information of a photographing apparatus when a photographing target is in a preset photographing region of the photographing apparatus; and the calculation module is used for acquiring offset information, radian information and radius information of the shooting device according to the position information and the posture information, and acquiring target position information of the shooting target according to the offset information, the radian information and the radius information of the shooting device.
In summary, the shot target position determining method, the shot target position determining device, and the computer storage medium according to the embodiments of the present application can determine the target position information of the shot target according to the position and the posture information of the shooting device, and have the advantages of high processing efficiency and high accuracy.
Moreover, according to the method and the device, automatic calibration of the shooting target in various monitoring scenes can be achieved according to the obtained target position information, expansion and development of various monitoring functions are facilitated, and use convenience and user experience can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a flowchart illustrating a method for determining a position of a shooting target according to a first embodiment of the present application.
Fig. 2 is a flowchart illustrating a method for determining a position of a shooting target according to a second embodiment of the present application.
Fig. 3 is a schematic structural diagram of a shooting target position determining apparatus according to a fourth embodiment of the present application.
Element number
300: a shooting target position determination device; 302: an acquisition module; 304: and a calculation module.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
Specific implementations of the present application will be described in detail below with reference to the following drawings:
first embodiment
Fig. 1 is a flowchart illustrating a shooting target position determination method according to a first embodiment of the present application. As shown in the figure, the present embodiment mainly includes the following steps:
in step S102, position information and posture information of the photographing apparatus when the photographing target is in a preset photographing region of the photographing apparatus are acquired.
Alternatively, the position and/or the posture of the shooting device may be adjusted according to the set position of the shooting target until a detection result that the shooting target is currently located in a preset shooting area of the shooting device is obtained, and the position information and the posture information of the shooting device are obtained in response to the detection result.
Alternatively, the photographing device may include a dome camera, which may be adjusted according to the location of the photographing target, such as horizontal angle adjustment, pitch angle adjustment, and the like, so that the photographing target is located in a preset photographing region of the photographing device.
Alternatively, the position information of the photographing device may include longitude information (Lx), latitude information (Ly), altitude information (d), and the like of the current installation position of the photographing device.
Alternatively, the attitude information of the photographing device may include horizontal angle information (p), pitch angle information (t) of the photographing device.
And step S104, acquiring offset information, radian information and radius information of the shooting device according to the position information and the posture information.
Alternatively, the offset information of the photographing device may include X-axis offset information (dx) on the X-axis and Y-axis offset information (dy) on the Y-axis of the photographing device. Wherein, the plane formed by the X axis and the Y axis is parallel to the horizontal plane of the shooting device.
Alternatively, the radian information may include first radian information corresponding to longitude information of the photographing device and second radian information corresponding to latitude information of the photographing device.
Alternatively, the radius length of the sphere, which varies with the dimension, may be corrected to obtain a correction coefficient, and then the radius information of the photographing device may be obtained based on the correction coefficient.
And step S106, obtaining the target position information of the shooting target according to the offset information, the radian information and the radius information of the shooting device.
Alternatively, the target position information of the photographic target may include target longitude information (TLx) and target latitude information (TLy) of the photographic target.
Second embodiment
Fig. 2 is a flowchart illustrating a shooting target position determination method according to a second embodiment of the present application. This embodiment is mainly a specific implementation of the first embodiment, and as shown in the figure, this embodiment mainly includes the following steps:
and step S210, obtaining distance information between the shooting target and the shooting device according to the height information, the pitch angle information and the first conversion formula of the shooting device.
In this embodiment, the first conversion formula is expressed as: td ═ d × tan (toaradians (90-t)).
Where Td represents distance information, d represents height information, t represents the pitch angle information, and toaradians is the conversion of angles to radians.
And step S212, obtaining X-axis offset information of the shooting device on an X axis according to the distance information, the horizontal angle information and the second conversion formula, and obtaining Y-axis offset information of the shooting device on a Y axis according to the distance information, the horizontal angle information and the third conversion formula.
In this embodiment, the second conversion formula is expressed as:
dx＝Td*sin(toRadians(p))
where dx represents X-axis offset information and p represents horizontal angle information.
In this embodiment, the third conversion formula is expressed as:
dy＝Td*cos(toRadians(p))
where dy denotes Y-axis offset information and p denotes horizontal angle information.
In this embodiment, the plane formed by the X-axis and the Y-axis may be parallel to the horizontal plane of the photographing apparatus.
Step S220, obtaining first radian information of the shooting device according to the longitude information and a fourth conversion formula, and obtaining second radian information of the shooting device according to the latitude information and a fifth conversion formula.
Specifically, the longitude information and the latitude information of the photographing device may be converted into the first radian information and the second radian information, respectively, using a fourth conversion formula and a fifth conversion formula.
In this embodiment, the fourth conversion formula can be expressed as:
RLx＝Lx*pi/180
in this embodiment, the fifth conversion formula is expressed as:
RLy＝Ly*pi/180
where RLx denotes first radian information, Lx denotes longitude information, RLy denotes second radian information, and Ly denotes latitude information.
And step S230, obtaining a correction coefficient according to the longitude information, the equator radius and the polar radius of the earth and a sixth conversion formula.
Specifically, the length of the spherical radius that changes due to the difference in the dimensions may be corrected using the sixth conversion formula.
In this embodiment, the sixth conversion formula is expressed as:
Ec＝Rj+(Rc-Rj)*(90-Lx)/90
where Ec represents a correction coefficient, Rj represents a polar radius of the earth, and Rc represents an equatorial radius of the earth.
And step S232, obtaining the radius information of the shooting device according to the correction coefficient, the dimension information and a seventh conversion formula.
Specifically, the radius information of the dimensional circle where the photographing device is located can be obtained according to the dimensional circle where the photographing device is located.
In this embodiment, the seventh conversion formula is expressed as:
Ed＝Ec*cos(Ly)
wherein Ed represents the radius information.
Step S240, obtaining target longitude information of the shooting target according to the X-axis offset information, the first radian information, the radius information, and the eighth conversion formula, and obtaining target latitude information of the shooting target according to the Y-axis offset information, the second radian information, the radius information, and the ninth conversion formula.
In this embodiment, the eighth conversion formula is expressed as:
TLx＝(dx/Ed+RLx)*180/pi
in this embodiment, the ninth conversion formula is expressed as:
TLy＝(dy/Ec+RLy)*180/pi
here, TLx denotes target longitude information, and TLy denotes target latitude information.
In step S242, target position information of the photographic target is determined based on the target longitude information and the target latitude information.
Preferably, the method of this embodiment may further automatically generate calibration information of the shooting target in a preset electronic map or a preset monitoring picture according to the target position information of the shooting target.
It should be noted that, in the processing flow of the present embodiment, the execution sequence of steps S210 to S212, S220, and S230 to S232 is not limited, and may be arbitrarily adjusted according to the actual use requirement (e.g., the hardware configuration requirement).
In summary, according to the shot target position determining method in the embodiment of the present application, the current position information of the shot target can be determined quickly and accurately by acquiring the position and the posture of the shooting device when the shot target is in the preset shooting area of the shooting device.
Moreover, the target position information of the shooting target determined in the embodiment can be used for further realizing automatic calibration of the shooting target, for example, development of some corresponding functions can be completed on an AR large screen, for example, POI tags generated automatically, full-text tag search, cross-camera tag search, high-point camera switching by search result tag linkage, tag positioning screen center search, 3D simulation model integration, tag screening and the like are supported, so that the current monitoring means can be enriched and expanded.
Third embodiment
A third embodiment of the present application provides a computer storage medium having stored therein instructions for executing the steps of the shooting target position determination method described in the above embodiments.
Fourth embodiment
Fig. 3 shows a main configuration diagram of a photographic subject position determining apparatus of a fourth embodiment of the present application. As shown in the drawing, the photographing target position determining apparatus 300 of the present embodiment mainly includes: an acquisition module 302 and a calculation module 304.
The acquisition module 302 is used for acquiring position information and posture information of the shooting device when a shooting target is in a preset shooting area of the shooting device.
Optionally, the obtaining module 302 may adjust the position and/or the posture of the shooting device according to the setting position of the shooting target until obtaining a detection result that the shooting target is currently located in the preset shooting area of the shooting device; and obtaining the position information and the attitude information of the photographing device in response to the detection result.
Optionally, the position information includes longitude information, latitude information, and altitude information of the camera, and the attitude information includes horizontal angle information and pitch angle information of the camera.
The calculation module 304 is configured to obtain offset information, radian information, and radius information of a shooting device according to the position information and the posture information, and obtain target position information of the shooting target according to the offset information, the radian information, and the radius information of the shooting device.
Optionally, the calculating module 304 is further configured to obtain distance information between the shooting target and the shooting device according to the height information of the shooting device, the pitch angle information, and a first conversion formula; according to the distance information, the horizontal angle information and a second conversion formula, obtaining X-axis offset information of the shooting device on an X axis, and according to the distance information, the horizontal angle information and a third conversion formula, obtaining Y-axis offset information of the shooting device on a Y axis; the first conversion formula is expressed as: td ═ d × tan (toaredians (90-t)); wherein Td represents the distance information, d represents the height information, and t represents the pitch angle information; the second conversion formula is expressed as: dx ═ Td sin (toaradians (p)); the third conversion formula is expressed as: dy Td cos (toaradians (p)); wherein dx represents the X-axis offset information, dy represents the Y-axis offset information, and p represents the horizontal angle information.
Optionally, a plane formed by the X-axis and the Y-axis is parallel to a horizontal plane of the photographing apparatus.
Optionally, the calculating module 304 is further configured to obtain first radian information of the shooting device according to the longitude information and a fourth conversion formula; obtaining second radian information of the shooting device according to the dimension information and a fifth conversion formula; the fourth conversion formula is expressed as: RLx ═ lxpi/180; the fifth conversion formula is expressed as: RLy ═ Ly pi/180; wherein the RLx represents the first radian information, the Lx represents the longitude information, the RLy represents the second radian information, and the Ly represents the latitude information.
Optionally, the calculating module 304 is further configured to obtain a correction coefficient according to the longitude information, the equator radius and the polar radius of the earth, and a sixth conversion formula; obtaining the radius information of the shooting device according to the correction coefficient, the dimension information and a seventh conversion formula; the sixth conversion formula is expressed as: ec ═ Rj + (Rc-Rj) × (90-Lx)/90; wherein Ec represents the correction coefficient, Rj represents a polar radius of the earth, and Rc represents an equatorial radius of the earth; the seventh conversion formula is expressed as: ed ═ Ec cos (ly); wherein the Ed represents the radius information.
Optionally, the calculating module 304 is further configured to obtain target longitude information of the shooting target according to the X-axis offset information, the first radian information, the radius information, and an eighth conversion formula; obtaining target dimension information of the shooting target according to the Y-axis offset information, the second radian information, the radius information and a ninth conversion formula; determining the target position information of the shooting target according to the target longitude information and the target latitude information; the eighth conversion formula is expressed as: TLx ═ 180/pi (dx/Ed + RLx); the ninth conversion formula is expressed as: TLy ═ (dy/Ec + RLy) × 180/pi; wherein the TLx represents the target longitude information and the TLy represents the target latitude information.
Optionally, the shooting target position determining device 300 may be further configured to automatically generate calibration information of the shooting target in a preset electronic map or a preset monitoring picture according to the target position information of the shooting target.
In addition, the shooting target position determining device 30 according to the embodiment of the present invention may also be used to implement other steps in the foregoing shooting target position determining method embodiments, and has the beneficial effects of the corresponding method step embodiments, which are not described herein again.
In summary, the shot target position determining method, the shot target position determining apparatus, and the computer storage medium provided in the embodiments of the present application can quickly and accurately determine the geographic position information of the shot target according to the position and the posture information of the shooting device, and have the advantages of low operation cost and high operation efficiency. In addition, the automatic calibration of the shot target in various monitoring scenes can be realized based on the determined target position information, so that the current monitoring means can be greatly enriched and expanded, and the monitoring effect can be improved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (11)
1. A shooting target position determination method is characterized by comprising the following steps:
acquiring position information and posture information of a shooting device when a shooting target is in a preset shooting area of the shooting device;
acquiring offset information, radian information and radius information of the shooting device according to the position information and the posture information; and
and acquiring target position information of the shooting target according to the offset information, the radian information and the radius information of the shooting device.
2. The photographic subject position determination method according to claim 1, wherein the acquiring position information and orientation information of the photographic device when the photographic subject is in a preset photographic area of the photographic device includes:
adjusting the position and/or posture of the shooting device according to the set position of the shooting target until a detection result that the shooting target is currently located in the preset shooting area of the shooting device is obtained; and
and responding to the detection result to obtain the position information and the attitude information of the shooting device.
3. The photographic target position determination method according to claim 2, wherein the position information includes longitude information, latitude information, and altitude information of the photographic apparatus, and the attitude information includes horizontal angle information and pitch angle information of the photographic apparatus.
4. The photographic target position determination method according to claim 3, wherein the obtaining offset information of the photographic device based on the position information and the orientation information includes:
obtaining distance information between the shooting target and the shooting device according to the height information, the pitch angle information and a first conversion formula of the shooting device;
according to the distance information, the horizontal angle information and a second conversion formula, obtaining X-axis offset information of the shooting device on an X axis, and according to the distance information, the horizontal angle information and a third conversion formula, obtaining Y-axis offset information of the shooting device on a Y axis;
the first conversion formula is expressed as: td ═ d tan (toaradians (90-t))
Wherein Td represents the distance information, d represents the height information, and t represents the pitch angle information;
the second conversion formula is expressed as: dx (Td) (sin (toaradians (p)))
The third conversion formula is expressed as: dy Td cos (toaradians (p))
Wherein dx represents the X-axis offset information, dy represents the Y-axis offset information, and p represents the horizontal angle information.
5. The photographic target position determination method according to claim 4, wherein a plane constituted by the X axis and the Y axis is parallel to a horizontal plane of the photographic apparatus.
6. The photographic target position determination method according to claim 4, wherein the obtaining radian information of a photographic device from the position information and the attitude information comprises:
acquiring first radian information of the shooting device according to the longitude information and a fourth conversion formula;
obtaining second radian information of the shooting device according to the dimension information and a fifth conversion formula;
the fourth conversion formula is expressed as: RLx ═ Lx × pi/180
The fifth conversion formula is expressed as: RLy ═ Lypi/180
Wherein the RLx represents the first radian information, the Lx represents the longitude information, the RLy represents the second radian information, and the Ly represents the latitude information.
7. The photographic target position determination method according to claim 6, wherein the obtaining radius information of a photographic device based on the position information and the orientation information includes:
obtaining a correction coefficient according to the longitude information, the equator radius and the polar radius of the earth and a sixth conversion formula;
obtaining the radius information of the shooting device according to the correction coefficient, the dimension information and a seventh conversion formula;
the sixth conversion formula is expressed as: ec ═ Rj + (Rc-Rj) × (90-Lx)/90
Wherein Ec represents the correction coefficient, Rj represents a polar radius of the earth, and Rc represents an equatorial radius of the earth;
the seventh conversion formula is expressed as: ed Ec cos (ly)
Wherein the Ed represents the radius information.
8. The photographic target position determination method according to claim 7, wherein the obtaining target position information of the photographic target from the offset information, the radian information, and the radius information of the photographic apparatus includes:
acquiring target longitude information of the shooting target according to the X-axis offset information, the first radian information, the radius information and an eighth conversion formula;
obtaining target dimension information of the shooting target according to the Y-axis offset information, the second radian information, the radius information and a ninth conversion formula;
determining the target position information of the shooting target according to the target longitude information and the target latitude information;
the eighth conversion formula is expressed as: TLx ═ 180/pi (dx/Ed + RLx)
The ninth conversion formula is expressed as: TLy (dy/Ec + RLy) × 180/pi
Wherein the TLx represents the target longitude information and the TLy represents the target latitude information.
9. The photographic target position determination method according to claim 1, characterized by further comprising: and automatically generating calibration information of the shooting target in a preset electronic map or a preset monitoring picture according to the target position information of the shooting target.
10. A computer storage medium characterized in that instructions for executing the steps of the photographic target position determination method according to any one of claims 1 to 9 are stored in the computer storage medium.
11. A photographic target position determination apparatus characterized by comprising:
an acquisition module for acquiring position information and attitude information of a photographing apparatus when a photographing target is in a preset photographing region of the photographing apparatus;
and the calculation module is used for acquiring offset information, radian information and radius information of the shooting device according to the position information and the posture information, and acquiring target position information of the shooting target according to the offset information, the radian information and the radius information of the shooting device.
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