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A video anti-shake method and mobile device

A mobile device and video technology, applied in the field of image processing, can solve the problems of unsatisfactory anti-shake effect and large motion estimation error, and achieve the effect of fast calculation speed and simple algorithm

Active Publication Date: 2022-03-18
XIAMEN MEITUZHIJIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-shake method based on digital image processing technology depends on the quality of the image, and it is prone to large errors in motion estimation, and the anti-shake effect is not ideal in the case of large and fast movements, dark shooting environments, etc.

Method used

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  • A video anti-shake method and mobile device
  • A video anti-shake method and mobile device
  • A video anti-shake method and mobile device

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Embodiment Construction

[0055] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0056] figure 1 A schematic structural diagram of a mobile device 100 according to an embodiment of the present invention is shown. refer to figure 1 , the mobile device 100 includes: a memory interface 102 , one or more data processors, image processors and / or a central processing unit 104 , and a peripheral interface 106 . Memory interface 102, one or more processors 104, and / or peripheral interface 106 may be discrete componen...

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Abstract

Disclosed is a video anti-shake method, comprising: obtaining three-axis angular velocity data of a gyroscope during shooting of a mobile device and captured video frame image data; calculating the corresponding axis angular velocity according to the axis angular velocity of the gyroscope in adjacent time intervals; The angle of rotation; for each video frame taken: calculate the three-axis rotation angle corresponding to the video frame; calculate the first motion track of the video frame according to the three-axis rotation angle of the video frame and the camera calibration matrix; At least one adjacent reference frame smoothes the first motion trajectory of the video frame to obtain the motion trajectory of the video frame; the video frame is divided into blocks, and the motion of each block is calculated according to the motion trajectory of the video frame Trajectory: Adjust the image data in each block according to the motion track of each block, and output the anti-shake processed video frame. A corresponding mobile device is also disclosed.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a video anti-shake method and a mobile device. Background technique [0002] With the rapid development of science and technology, various mobile devices have continuously enriched and facilitated the lives of the public, and have become an indispensable part of people's lives because of their advantages of convenience, speed, and resource saving. [0003] Among them, smart phones, tablet computers and other mobile devices with cameras allow users to shoot video images they want at any time, increasing user experience. However, during the video shooting process, due to environmental factors or other factors, for example, when shooting while walking or driving, the shooting target shakes irregularly due to the movement of the device, resulting in the shaking of the captured video image, thereby reducing the user perception. [0004] It can be seen that in order to impro...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/73G06T2207/10016G06T7/20G06T5/50G06T2207/20201
Inventor 侯峰陈星张长定叶志鸿
Owner XIAMEN MEITUZHIJIA TECH
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