Method and device for detecting video shake

Abstract

The invention discloses a video shake detection method and device. The method includes: performing frame division processing on the video to be detected to obtain a frame sequence; performing feature point detection on the frame sequence frame by frame, acquiring feature points of each frame, and generating frames The feature point sequence matrix; based on the optical flow tracking algorithm, the frame feature point sequence matrix is ​​operated to obtain the motion vector of each frame; according to the motion vector of each frame, the feature value of the video to be detected is obtained; the feature value of the video to be detected is used as The input signal of the detection model is calculated to obtain an output signal, and it is judged according to the output signal whether the video to be detected shakes. The present invention detects the feature points and adopts the optical flow tracking algorithm for the feature points, effectively solves the problem of tracking failure caused by excessive changes between two adjacent frames, and detects situations such as sudden large displacement, strong jitter, and large rotation of the lens It has good sensitivity and robustness when shooting video.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method and device for detecting video shaking. Background technique [0002] The wave of science and technology has greatly changed everyone's life. Hand-held video capture devices such as smart phones, digital cameras, mirrorless cameras, and SLR cameras, which are constantly shrinking in size and price, have become the necessities of most people's lives. The era of photography has come quietly. When people enjoy recording interesting and exciting moments with handheld video capture devices, the erratic motion of the lens due to the photographer's movement or involuntary shaking can cause irregular jitters in the video, resulting in the loss of recorded highlights The effect is greatly reduced, and the subsequent processing of the video is seriously affected. Therefore, video shake detection has become an indispensable and important part of video processing technolog...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of the prior art, the embodiment of the present invention provides a video shake detection method and device to overcome the low accuracy of the existing detection algorithm in the prior art, and the conditions of large lens displacement and strong shake in a short period of time Issues such as the insensitivity of the video taken under

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