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A camera control method, device, electronic device and storage medium

A control method and camera position technology, applied in the field of computer vision, can solve the problems of inability to use the camera speed gear, limit the universality of camera control, frequent camera screen shaking, etc., so as to reduce the cost of camera parameter configuration and improve the user experience. , the effect of improving universality

Active Publication Date: 2022-07-12
SHANGHAI AWARE INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the camera can actually adjust very few speed gears, most of the speed gears in the nominal range cannot be used, so the speed control strategy (such as SDK (Software Development Kit, software tool development kit) etc.) is used to control the camera. Control, which will cause the problem that the speed gear within the nominal range of the camera cannot be used
When the speed control strategy lacks the ability of precise speed control, overshoot is inevitable, and overshoot will cause the target to shake frequently on the camera screen, which will further lead to poor user experience
In addition, when using the speed control strategy to control the camera, frequent sampling is usually required, and the control frequency must be at the millisecond level, which will cause greater pressure on network interaction.
Due to the many uncertain factors in the field environment (such as the size, distance, speed, and direction of movement of the tracking target, etc.), when using the position control strategy to control the camera, in order to ensure that the tracking target remains in the image center with an appropriate size, it is necessary to frequently adjust the camera position. Frequent adjustment of the camera position will make the user experience poor
It should be noted that the existing position control strategies require complex parameter configurations to adapt to different application environments, which greatly limits the universality of camera control.

Method used

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  • A camera control method, device, electronic device and storage medium
  • A camera control method, device, electronic device and storage medium
  • A camera control method, device, electronic device and storage medium

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Experimental program
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Embodiment 1

[0029] figure 1 This is a flowchart of a camera control method provided by the first embodiment of the present invention. This embodiment can be applied to the situation where the camera can track the target without complex parameter configuration. It can be implemented in software and / or hardware and can generally be integrated in electronic devices. correspondingly, as figure 1 As shown, the method includes the following operations:

[0030] S110: Acquire motion data of the tracking target in the current camera field of view image.

[0031] The tracking target may be an object that the camera needs to capture and track. The current field of view image of the camera may be an image of the current field of view of the camera, which is captured by the camera. Motion data can be used to characterize the behavior of the tracked target.

[0032] In this embodiment of the present invention, when an object needs to be captured and tracked by a camera, the current camera field o...

Embodiment 2

[0041] figure 2This is a flow chart of a camera control method provided by the second embodiment of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiment. In this embodiment, an image is given when it is determined that the tracking target moves out of the current camera field of view image. In the case of the range of the tracking target, the estimated motion trajectory of the tracking target in the predicted walking area is calculated according to the motion data of the tracking target, and then a specific optional embodiment of the camera adjustment parameters is determined according to the estimated motion trajectory. correspondingly, as figure 2 As shown, the method includes the following operations:

[0042] S210: Acquire motion data of the tracking target in the current camera field of view image.

[0043] Optionally, before acquiring the motion data of the tracking target in the current camera field of view image, it may ...

Embodiment 3

[0081] Figure 5 is a schematic diagram of a camera control device provided in Embodiment 3 of the present invention, such as Figure 5 As shown, the device includes: a motion data acquisition module 310, an estimated motion trajectory calculation module 320, and a camera adjustment parameter determination module 330, wherein:

[0082] A motion data acquisition module 310, configured to acquire motion data of the tracking target in the current camera field of view image;

[0083] The estimated motion trajectory calculation module 320 is used to calculate the estimated motion trajectory of the tracking target in the predicted walking area according to the motion data of the tracking target when it is determined that the tracking target moves out of the image range of the current camera field of view image;

[0084] The camera adjustment parameter determination module 330 is configured to determine the camera adjustment parameter according to the estimated motion trajectory.

...

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Abstract

Embodiments of the present invention disclose a camera control method, device, electronic device and storage medium. The camera control method includes: acquiring motion data of the tracking target in the current camera field of view image; under the condition that the tracking target is determined to move out of the image range of the current camera field of view image, calculating the predicted walking area of ​​the tracking target according to the motion data of the tracking target Estimated motion trajectory; determine camera adjustment parameters according to the estimated motion trajectory. The technical solutions of the embodiments of the present invention can reduce the configuration cost of camera parameters for target tracking, improve the universality of camera control during target tracking, and further improve user experience.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of computer vision, and in particular, to a camera control method, apparatus, electronic device, and storage medium. Background technique [0002] Object tracking is an important technical branch in the field of computer vision technology. In the field of target tracking, the camera can be used as the main device to capture and track the target. [0003] At present, camera control strategies for target tracking mainly include speed control strategies and position control strategies. Among them, the principle of the speed control strategy is to track the target by adjusting the speed gear of the camera, and the principle of the position control strategy is to continuously configure the parameters, so that the camera can adjust the level, pitch and focal length according to the configured parameters, so as to track the target. Centered to zoom into the camera's field of view. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/20G06T7/70
CPCG06T7/20G06T7/70G06T2207/10016G06T2207/30241
Inventor 范柘
Owner SHANGHAI AWARE INFORMATION TECH