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Target tracking method and device

A target tracking and target queuing technology, applied in the field of target tracking methods and devices, can solve the problems of heavy target tracking workload, no distinction between foreground area and background area, etc., and achieve the goal of filtering background interference, reducing workload, and reducing areas Effect

Active Publication Date: 2010-06-02
GUANGDONG VIMICRO
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  • Description
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Problems solved by technology

[0008] However, in the existing target tracking methods, there is no distinction between the foreground area and the background area in the captured image of the current frame. During the tracking process, each tracking object needs to be matched one by one with all possible positions in the captured image of the current frame. A lot of repetitive work is required in the process of target tracking, and the workload of target tracking is heavy

Method used

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  • Target tracking method and device

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no. 1 example

[0035] figure 1 It is a flowchart of a target tracking method provided by an embodiment of the present invention. Such as figure 1 Shown:

[0036] Step 101: Detect each target object from the image collected in the current frame.

[0037] The target object can be the detection frame in the target queue before fusion, or the R 2 (cx2, cy2, w2, h2), where cx1, cx2 are the center abscissas of the two rectangles, cy1, cy2 are the center ordinates of the two rectangles, w1, w2 are the widths of the two rectangles , h1, h2 are the heights of the two rectangles respectively.

[0038] The distance dis between the centers of two rectangular boxes is calculated using Formula 1:

[0039] dis=sqrt((cx1-cx2)*(cx1-cx2)+(cy1-cy2)*(cy1-cy2)), formula 1

[0040] The scale position matching degree p of two rectangular boxes can be calculated by formula 2:

[0041] p = exp ( - dis 2 ...

no. 3 example

[0101] Such as Figure 4 As shown, the object tracking device provided by the embodiment of the present invention includes: a detection module 401 , a matching module 402 and a tracking storage module 403 .

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Abstract

The embodiment of the invention provides a target tracking method and a device thereof, which comprises the steps: each target object is detected from a present frame grabbing image; each tracking object is matched with each detected target object one by one; the target object which matches with the tracking object is taken as a tracking result of the tracking object. By using detection in the target tracking, the target object is firstly detected from the present frame grabbing image, a foreground area of the present frame grabbing image can be obtained in advance; then the tracking object ismatched according to the detected target object, thus filtering background interference, decreasing areas to be processed and reducing workload of the target tracking.

Description

technical field [0001] The invention relates to image processing technology, in particular to a target tracking method and device. Background technique [0002] With the development of science and technology, image processing technology has been widely used in public security, human-computer interaction, entertainment, and medical fields. Target tracking is a typical application of image processing technology. Through target tracking, the system can automatically obtain information such as the location, size and number of targets from images or videos. Object tracking technology has played an important role in the fields of intelligent video surveillance, intelligent transportation, video analysis and retrieval, and image retrieval. [0003] At present, the commonly used target tracking methods generally use the method of detection or manual calibration to determine the initial position of the tracking object in the first frame acquisition image, and find the most similar a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/20H04N7/18
Inventor 邓亚峰黄英
Owner GUANGDONG VIMICRO
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