CN114078084A - Method for realizing target positioning and tracking based on coordinate mapping - Google Patents
Method for realizing target positioning and tracking based on coordinate mapping Download PDFInfo
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- CN114078084A CN114078084A CN202010810670.5A CN202010810670A CN114078084A CN 114078084 A CN114078084 A CN 114078084A CN 202010810670 A CN202010810670 A CN 202010810670A CN 114078084 A CN114078084 A CN 114078084A
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- 238000013507 mapping Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 4
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G06T3/02—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
- G06T3/4038—Scaling the whole image or part thereof for image mosaicing, i.e. plane images composed of plane sub-images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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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
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/32—Indexing scheme for image data processing or generation, in general involving image mosaicing
Abstract
The invention provides a method for realizing target positioning and tracking based on coordinate mapping, and relates to the technical field of computer vision processing. The method for realizing target positioning and tracking based on coordinate mapping comprises the following steps: s1, splicing regions shot by all cameras in a target region into an integral space plane scene according to the mapping relation between all cameras in the target region and an actual plane; s2, acquiring video stream data of the same time period from all cameras of a target area; and S3, identifying all targets from each frame of image of the video stream data, and acquiring the position coordinates of each target in each frame of image in the image by adopting a target detection algorithm. The invention provides a method for realizing target positioning and tracking based on coordinate mapping, which does not need auxiliary equipment, obtains a target position through a camera, realizes accurate positioning through coordinate mapping, and has high accuracy and strong practicability.
Description
Technical Field
The invention relates to the technical field of computer vision processing, in particular to a method for realizing target positioning and tracking based on coordinate mapping.
Background
A positioning system is an interrelated ensemble or set of devices (components) that are targeted to determine spatial location. The system can ensure that at least 4 satellites can be observed at any point on the earth at any time, so that the satellites can acquire the longitude and latitude and the height of the observation point, and functions of navigation, positioning, time service and the like can be realized. This technique can be used to guide aircraft, ships, vehicles, and individuals to safely and accurately follow a selected route to a destination on time.
Currently, the existing positioning system performs target positioning by the following method: the target carries or installs the locator additional, for example use cell-phone honeycomb signal, WIFI signal and bluetooth signal etc. to carry out location service locator and send locating signal, generally all carry out location service based on electromagnetic signal's location technique, but carry out location service and easily receive the influence of signal power with electromagnetic signal's location technique, the time difference that locating signal transmitted to a plurality of basic stations calculates the target location simultaneously, there is great error, it is inaccurate to cause the location in the area that electromagnetic signal is weak, thereby influence the location accuracy.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for realizing target positioning and tracking based on coordinate mapping, and solves the problems that in the prior art, positioning server equipment is required for auxiliary positioning, signals are sent with time difference, particularly indoors, and accurate positioning information cannot be obtained.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for realizing target positioning and tracking based on coordinate mapping comprises the following steps:
s1, splicing regions shot by all cameras in a target region into an integral space plane scene according to the mapping relation between all cameras in the target region and an actual plane;
s2, acquiring video stream data of the same time period from all cameras of a target area;
s3, identifying all targets from each frame of image of the video stream data, and acquiring position coordinates of each target in each frame of image in the image by adopting a target detection algorithm;
s4, mapping the image coordinates of the target to space position coordinates through an affine transformation algorithm after obtaining the coordinates, and realizing real-time positioning of the target;
s5, generating positioning information of all targets in video stream data according to the acquisition time of each frame of image and the spatial positions of all targets in each frame of image;
and S6, when the target moves in different camera shooting areas, the spatial position coordinates of the target can move in a spatial plane scene in the whole target area, so that the target can be positioned and tracked in real time in the whole target area.
(III) advantageous effects
The invention provides a method for realizing target positioning and tracking based on coordinate mapping. The method has the following beneficial effects:
according to the target positioning and tracking method, the spatial positions and the motion tracks of all targets are calculated through video stream data, the user experience is improved, the problem of positioning errors caused by a positioning server is solved, the targets are accurately positioned in real time, the motion tracks of the targets can be analyzed, and support is provided for target tracking, target quantity early warning, personnel inspection, security early warning, personnel management and control and the like.
Drawings
FIG. 1 is a schematic view of the working process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides a method for implementing target positioning and tracking based on coordinate mapping, including the following steps:
s1, splicing regions shot by all cameras in a target region into an integral space plane scene according to the mapping relation between all cameras in the target region and an actual plane;
s2, acquiring video stream data of the same time period from all cameras of a target area;
s3, identifying all targets from each frame of image of the video stream data, and acquiring position coordinates of each target in each frame of image in the image by adopting a target detection algorithm;
s4, mapping the image coordinates of the target to space position coordinates through an affine transformation algorithm after obtaining the coordinates, and realizing real-time positioning of the target;
s5, generating positioning information of all targets in video stream data according to the acquisition time of each frame of image and the spatial positions of all targets in each frame of image;
and S6, when the target moves in different camera shooting areas, the spatial position coordinates of the target can move in a spatial plane scene in the whole target area, so that the target can be positioned and tracked in real time in the whole target area.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A method for realizing target positioning and tracking based on coordinate mapping is characterized in that: the method comprises the following steps:
s1, splicing regions shot by all cameras in a target region into an integral space plane scene according to the mapping relation between all cameras in the target region and an actual plane;
s2, acquiring video stream data of the same time period from all cameras of a target area;
s3, identifying all targets from each frame of image of the video stream data, and acquiring position coordinates of each target in each frame of image in the image by adopting a target detection algorithm;
s4, mapping the image coordinates of the target to space position coordinates through an affine transformation algorithm after obtaining the coordinates, and realizing real-time positioning of the target;
s5, generating positioning information of all targets in video stream data according to the acquisition time of each frame of image and the spatial positions of all targets in each frame of image;
and S6, when the target moves in different camera shooting areas, the spatial position coordinates of the target can move in a spatial plane scene in the whole target area, so that the target can be positioned and tracked in real time in the whole target area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810670.5A CN114078084A (en) | 2020-08-13 | 2020-08-13 | Method for realizing target positioning and tracking based on coordinate mapping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810670.5A CN114078084A (en) | 2020-08-13 | 2020-08-13 | Method for realizing target positioning and tracking based on coordinate mapping |
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| Publication Number | Publication Date |
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| CN114078084A true CN114078084A (en) | 2022-02-22 |
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| CN202010810670.5A Pending CN114078084A (en) | 2020-08-13 | 2020-08-13 | Method for realizing target positioning and tracking based on coordinate mapping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115578827A (en) * | 2022-12-07 | 2023-01-06 | 杭州宇链科技有限公司 | Method and system for tracking dangerous chemical article receiving container based on AI video |
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2020
- 2020-08-13 CN CN202010810670.5A patent/CN114078084A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115578827A (en) * | 2022-12-07 | 2023-01-06 | 杭州宇链科技有限公司 | Method and system for tracking dangerous chemical article receiving container based on AI video |
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