Moving target automatic tracking method and device for improving user experience

Abstract

The invention provides a moving target automatic tracking method and device for improving user experience. The method comprises the steps that after the moving target real contour in an image is obtained, whether a moving target is at the center in the image is judged; if not, the rotating speeds of a camera lens in the longitude direction and the latitude direction of a spherical space are computed respectively; according to the rotating speeds obtained by computing, the camera lens is controlled to rotate; after the moving target is in the middle of the image by rotating of the camera lens, according to the real contour of the moving target, the circumscribed rectangle of the real contour is obtained, and according to the circumscribed rectangle, camera lens zooming multiplying power is computed; and according to the camera lens zooming multiplying power obtained by computing, the camera lens is controlled to display the moving target in a zooming mode. Rotating and zooming of the camera lens are controlled according to the real contour of the moving target, so that the moving target is displayed at the center in a proper proportion, good displaying effect is achieved, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of video surveillance, in particular to a method and device for automatically tracking a moving target that enhances user experience. Background technique [0002] With the wide application of video surveillance, video-based moving target tracking technology has also become a hot spot. At present, the moving target tracking technology mainly uses the moving target detection algorithm to detect the moving target, then finds one or more corner points in the target area, and then tracks the corner points. This technical solution only knows the corner points because it tracks the corner points. The coordinate information of the target frame cannot accurately express the size and shape of the target frame. Moreover, the current moving target tracking technology controls the rotation of the lens according to the result calculated by the tracking algorithm, so that the moving target appears in the image captured b...

AI Technical Summary

Problems solved by technology

The tracking result of this kind of moving target tracking algorithm makes the position and size of the tracked moving target in the image uncertain. When the moving target is near the edge of the image or is far away from the lens and is displayed very small, it cannot be adjusted adaptively, making the moving target visually The display effect is not good, and the user experience is not good

If you want to obtain a better tracking experience effect, you need to adaptively adjust the size and zoom of the tracking target in the image, and the adaptive zoom of the prior art device is mostly based on its own elevation angle information, and when the elevation angle is close to 0 degrees or 90 degrees degrees, there is an error in the calculation of the elevation angle

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