Electronic anti-shake method based on gyroscope

Abstract

The invention provides an electronic anti-shake method based on a gyroscope. The method includes the following steps: enabling X, Y, and Z axes of the gyroscope to be separately overlapped with a Sensor; detecting rotation angles of X, Y, and Z axes of the Sensor by the gyroscope; matching the rotation angles with a field angle of a current lens; adopting a feature point matching method to performmotion estimation between two frames, and calculating a projection matrix P-Matrix of the two frames; merging the rotation angles of the gyroscope and the P-Matrix through the weight in the method; and adopting the merged projection matrix to project a current frame, and then clipping an image with a target size to further achieve an anti-shake effect. By adopting the anti-shake method provided by the invention, the background drag caused by the motion of a large-area object can be effectively solved, and meanwhile, the influence of image noises on the feature point matching method at night can be reduced.

Description

technical field [0001] The invention belongs to the technical field of security monitoring, and in particular relates to a gyroscope-based electronic anti-shake method. Background technique [0002] As the security monitoring field has more and more complex requirements for camera application scenarios, the vibration of the installation environment will have more and more influence on the image. In order to ensure that the vibration in the environment can be filtered out in various complex environments, it is particularly important to collect clear and stable images. [0003] During the shaking process, the data collected by the Sensor will change with the swing of the lens, which will cause shaking and blur the image, making it impossible to achieve the purpose of monitoring. [0004] Simple electronic anti-shake cannot solve the problem of background dragging and low-light noise caused by large objects passing through the lens, so adding a gyroscope can directly determine...

AI Technical Summary

Problems solved by technology

[0003] During the shaking process, the data collected by the Sensor will change with the swing of the lens, which will cause shaking, resulting in blurred images, and the purpose of monitoring cannot be achieved

[0004] Simple electronic anti-shake can not solve the problem of background dragging and low-light noise caused by large objects passing through the lens, so adding a gyroscope can directly determine whether there is shaking, so as to solve the above problems

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