CN104463900A - Method for automatically tracking target among multiple cameras - Google Patents
Method for automatically tracking target among multiple cameras Download PDFInfo
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- CN104463900A CN104463900A CN201410855139.4A CN201410855139A CN104463900A CN 104463900 A CN104463900 A CN 104463900A CN 201410855139 A CN201410855139 A CN 201410855139A CN 104463900 A CN104463900 A CN 104463900A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/292—Multi-camera tracking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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Abstract
The invention provides a method for automatically tracking a target among multiple cameras. The method comprises the following steps that a camera group is initialized; one camera is selected at will, interested target selecting and marking are carried out through a video display window of the camera, the interested target is initialized, the characteristic information of the interested target is extracted, and an online target detection model is established and is shared; a current data frame of the camera group is detected, and whether the interested target is detected or not is judged; if yes, the target is marked at a display window of the corresponding camera, and the new characteristic information of the interested target is updated to the online target detection model to enrich the machine learning experience; the next frame of the camera group is read, and the third step is repeatedly carried out till the tracking process is externally interrupted and ended. Real-time, effective, continuous, stable and unique tracking of the interested target among the cameras can be achieved.
Description
Technical field
The invention belongs to safety monitoring technical field, relate to target method for automatic tracking between a kind of multiple-camera.
Background technology
In public safety strick precaution field, target tracking is the important precautionary measures of a class, has been widely used in national defence and civilian every field, as intelligent monitoring, man-machine interaction, medical diagnosis, navigational guidance etc.Existing target tracking can only utilize target to carry out at the characteristic information of current camera, and tracking effect is unstable, only can realize tenacious tracking in current camera, once target is blocked, disappears, then follow the tracks of failure; When target occurs in another video camera, to target again characteristic information extraction, tracking can only be re-started, original trace information can be lost, thus tracking target that cannot be effective, complete, also cause target information bulk deposition simultaneously, cannot effectively be combined.
Summary of the invention
Can only carrying out on single video camera for existing target tracking and can not follow the trail of and the problem such as target tracking is inaccurate, unstable in the indirect force of multiple-camera, the invention provides target method for automatic tracking between a kind of multiple-camera, to solving the problem.
Target method for automatic tracking between described a kind of multiple-camera, comprises the following steps:
Step 1: camera cluster initialization, and capture camera group code stream showing in respective display window;
Step 2: select a road video camera arbitrarily, targets of interest selection and mark is carried out at its display window, and initialization is carried out to this target, set up target on-line checkingi model, extract targets of interest feature, targets of interest characteristic information is recorded to target on-line checkingi model, and target on-line checkingi model is shared in camera cluster;
Step 3: by contrasting with target on-line checkingi model, camera cluster current data frame being detected, determines whether targets of interest to be detected;
As detected, then at corresponding video camera display window, this targets of interest is marked, and the new characteristic information of targets of interest is updated to target on-line checkingi model;
As do not detected, then corresponding video camera display window only shows current data two field picture, and target on-line checkingi model is not updated;
Step 4: read next Frame of camera cluster, repeats step 3, until external interrupt terminates tracing process.
Further, between this multiple-camera in target method for automatic tracking, describedly camera cluster current data frame is detected synchronously carried out by multithreading by contrasting with target on-line checkingi model, each thread process No. one video camera current data frame.
Further, between this multiple-camera in target method for automatic tracking, described by contrasting with target on-line checkingi model, a wherein road video camera current data frame being detected, as targets of interest detected, processing by the following method:
When having and a targets of interest only detected, at corresponding video camera display window, this targets of interest is marked, and characteristic information new for this targets of interest is updated to target on-line checkingi model;
When multiple doubtful targets of interest being detected, choose maximum one of similarity after contrasting with target on-line checkingi model as final targets of interest, at corresponding video camera display window, this targets of interest is marked, and characteristic information new for this targets of interest is updated to target on-line checkingi model.
The present invention passes through the various characteristic information real-time update of targets of interest in target on-line checkingi model, in the present frame of multiple camera video, carry out targets of interest detection (comparing with target on-line checkingi model) simultaneously, as long as it appears in camera cluster display window, namely mark it, thus achieve targets of interest between multiple video camera real-time, effective, continuous, stable, uniquely follow the trail of.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention
Embodiment
Elaborate below in conjunction with accompanying drawing 1 pair of specific embodiments of the invention.
Target method for automatic tracking between a kind of multiple-camera of the present invention, comprises the following steps:
Step 1: complete the initial work to camera cluster, and show in the video camera display window of capture camera group code Liu Bingge road;
Step 2: select a road video camera arbitrarily, targets of interest selection and mark is carried out at its display window, and initialization is carried out to this target, set up target on-line checkingi model, extract targets of interest feature, targets of interest characteristic information is recorded to target on-line checkingi model, and target on-line checkingi model is shared in camera cluster;
Specifically, namely after selecting targets of interest, the extraneous rectangle frame of targets of interest is drawn in display window, and extract the positive and negative samples of the various attitudes (rotation, convergent-divergent, translation etc.) of targets of interest, and it is recorded to target on-line checkingi model, and target on-line checkingi model is shared in camera cluster.
Step 3: by contrasting with target on-line checkingi model, camera cluster current data frame being detected, determines whether targets of interest to be detected;
As detected, then at corresponding video camera display window, this targets of interest is marked, and characteristic information new for targets of interest is updated to target on-line checkingi model;
As do not detected, then corresponding video camera display window only shows current data two field picture, and target on-line checkingi model is not updated;
Step 4: read next Frame of camera cluster, repeats step 3, until external interrupt terminates tracing process.
Testing process in step 3,4 is all the time along with the real-time update of targets of interest positive and negative samples information in target on-line checkingi model, thus enriched target on-line checkingi model content, by machine learning, further ensure targets of interest between multiple video camera real-time, effective, continuous, stable, uniquely follow the trail of.
Between this multiple-camera in target method for automatic tracking, described by contrasting with target on-line checkingi model, camera cluster current data frame is detected and is synchronously carried out by multithreading, each thread process No. one video camera current data frame, camera cluster current data frame synchronization processes, each road video camera current data frame of targets of interest detected, all need to carry out targets of interest mark, and characteristic information new for targets of interest is updated to target on-line checkingi model respectively.
Specifically, between this multiple-camera in target method for automatic tracking, described by contrasting with target on-line checkingi model, a wherein road video camera current data frame being detected, as targets of interest detected, processing by the following method:
When having and a targets of interest only detected, at corresponding video camera display window, this targets of interest is marked, and characteristic information new for this targets of interest is updated to target on-line checkingi model;
When multiple doubtful targets of interest being detected, choose maximum one of similarity after contrasting with target on-line checkingi model as final targets of interest, at corresponding video camera display window, this targets of interest is marked, and characteristic information new for this targets of interest is updated to target on-line checkingi model.
Above section Example of the present invention has been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. a target method for automatic tracking between multiple-camera, is characterized in that: comprise the following steps:
Step 1: camera cluster initialization, and capture camera group code stream showing in respective display window;
Step 2: select a road video camera arbitrarily, targets of interest selection and mark is carried out at its display window, and initialization is carried out to this target, set up target on-line checkingi model, extract targets of interest feature, targets of interest characteristic information is recorded to target on-line checkingi model, and target on-line checkingi model is shared in camera cluster;
Step 3: by contrasting with target on-line checkingi model, camera cluster current data frame being detected, determines whether targets of interest to be detected;
As detected, then at corresponding video camera display window, this targets of interest is marked, and the new characteristic information of targets of interest is updated to target on-line checkingi model;
As do not detected, then corresponding video camera display window only shows current data two field picture, and target on-line checkingi model is not updated;
Step 4: read next Frame of camera cluster, repeats step 3, until external interrupt terminates tracing process.
2. target method for automatic tracking between a kind of multiple-camera according to claim 1, it is characterized in that: described by contrasting with target on-line checkingi model, camera cluster current data frame is detected and is synchronously carried out by multithreading, each thread process No. one video camera current data frame.
3. target method for automatic tracking between a kind of multiple-camera according to claim 2, it is characterized in that: described by contrasting with target on-line checkingi model, a wherein road video camera current data frame being detected, as targets of interest detected, processing by the following method:
When having and a targets of interest only detected, at corresponding video camera display window, this targets of interest is marked, and characteristic information new for this targets of interest is updated to target on-line checkingi model;
When multiple doubtful targets of interest being detected, choose maximum one of similarity after contrasting with target on-line checkingi model as final targets of interest, at corresponding video camera display window, this targets of interest is marked, and characteristic information new for this targets of interest is updated to target on-line checkingi model.
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| CN201410855139.4A CN104463900A (en) | 2014-12-31 | 2014-12-31 | Method for automatically tracking target among multiple cameras |
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Cited By (5)
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| CN106023252A (en) * | 2016-05-16 | 2016-10-12 | 浙江理工大学 | Multi-camera human body tracking method based on OAB algorithm |
| CN106373143A (en) * | 2015-07-22 | 2017-02-01 | 中兴通讯股份有限公司 | Adaptive method and system |
| CN106559645A (en) * | 2015-09-25 | 2017-04-05 | 杭州海康威视数字技术股份有限公司 | Based on the monitoring method of video camera, system and device |
| CN111866468A (en) * | 2020-07-29 | 2020-10-30 | 浙江大华技术股份有限公司 | Object tracking distribution method and device, storage medium and electronic device |
| WO2021114702A1 (en) * | 2019-12-10 | 2021-06-17 | 中国银联股份有限公司 | Target tracking method, apparatus and system, and computer-readable storage medium |
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| CN106373143A (en) * | 2015-07-22 | 2017-02-01 | 中兴通讯股份有限公司 | Adaptive method and system |
| CN106559645A (en) * | 2015-09-25 | 2017-04-05 | 杭州海康威视数字技术股份有限公司 | Based on the monitoring method of video camera, system and device |
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| CN111866468A (en) * | 2020-07-29 | 2020-10-30 | 浙江大华技术股份有限公司 | Object tracking distribution method and device, storage medium and electronic device |
| CN111866468B (en) * | 2020-07-29 | 2022-06-24 | 浙江大华技术股份有限公司 | Object tracking distribution method, device, storage medium and electronic device |
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