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Target tracking and positioning method and system and camera device

A technology of target tracking and positioning method, which is applied in the field of photography and can solve problems such as tracking and positioning of difficult targets

Inactive Publication Date: 2018-06-22
POWERVISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is difficult for underwater camera products to realize high dynamic shooting or video recording while tracking and locating the target object.

Method used

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  • Target tracking and positioning method and system and camera device
  • Target tracking and positioning method and system and camera device
  • Target tracking and positioning method and system and camera device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 It is a flow chart of the target tracking and positioning method provided by the embodiment of the present invention.

[0046] This embodiment provides a target tracking and positioning method, which is applied to a camera device provided with a first camera and a second camera, wherein the second camera is a zoom camera, such as figure 1 shown, including the following steps:

[0047] Step S102, using the first camera to track and shoot the target, and obtain the position information of the target;

[0048] Step S104, adjusting the shooting angle and focal length of the second camera according to the position information of the target;

[0049] Step S106, using the adjusted second camera to shoot the target object to obtain an image of the target object.

[0050] Specifically, the first camera can use a short-focus and wide-angle lens to facilitate locking on the target, and the second camera can use a long-focus and small wide-angle lens to facilitate stabl...

Embodiment 2

[0053] On the basis of the first embodiment above, this embodiment provides another target tracking and positioning method, such as figure 2 shown, including the following steps:

[0054] Step S101, calibrate the first camera to obtain calibration parameters.

[0055] Here, the Zhang Zhengyou calibration method can be used to calibrate the first camera to obtain calibration parameters.

[0056] Step S1021, obtaining the tracking frame for tracking and shooting the target by the first camera, and calculating the pixel coordinate information of the center of the tracking frame and the diagonal length of the tracking frame;

[0057] First, the target object to be tracked is selected through the image captured by the first camera. Through the visual tracking algorithm, the movement and scale changes of the target in the camera image are calculated in real time, and the tracking results are output in real time, that is, the target's "tracking frame center pixel coordinates" and "d...

Embodiment 3

[0064] image 3 It is a schematic diagram of the target tracking and positioning system provided by the embodiment of the present invention.

[0065] This embodiment provides a target tracking and positioning system, which is applied to a camera device provided with a first camera and a second camera, wherein the second camera is a zoom camera, such as image 3 As shown, the system includes a tracking and shooting module 10, an adjustment module 20 and a positioning and shooting module 30;

[0066] The tracking and shooting module 10 is used to use the first camera to track and shoot the target to obtain the position information of the target;

[0067] An adjustment module 20, configured to adjust the shooting angle and focal length of the second camera according to the position information of the target;

[0068] The positioning and photographing module 30 is used to photograph the target object with the adjusted second camera to obtain an image of the target object.

[00...

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Abstract

The invention provides a target tracking and positioning method and system and a camera device, and relates to the technical field of camera shooting. The method is applied to the camera device provided with a first camera and a second camera, wherein the second camera is a variable-focus camera. The method comprises the following steps: tracking and shooting a target object by the first camera, and acquiring position information of the target object; adjusting a shooting angle and a focal length of the second camera according to the position information of the target object; and shooting thetarget object in a zooming-in way by the adjusted second camera to obtain a target object image. Through adoption of a dual shooting scheme, highly-dynamic shooting or video recording can be performedduring tracking and positioning of the target object.

Description

technical field [0001] The invention relates to the technical field of imaging, in particular to a target tracking and positioning method, system and imaging device. Background technique [0002] Underwater camera products are more and more popular and favored by users. Underwater camera products can not only observe the situation of fish biting the hook, but also capture some beautiful pictures underwater, and these are inseparable from the camera function. At present, it is difficult for underwater camera products to realize high dynamic shooting or video recording while tracking and locating the target object. Contents of the invention [0003] In view of this, the object of the present invention is to provide a target tracking and positioning method, system and camera device, which can perform high-dynamic shooting or video recording while it is difficult for underwater camera products to track and locate target objects. [0004] In the first aspect, an embodiment of...

Claims

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Application Information

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IPC IPC(8): H04N5/232G01C21/00G01C11/02
CPCG01C11/02G01C21/00H04N23/67
Inventor 不公告发明人
Owner POWERVISION TECH
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