Video jitter detection method and device

Abstract

The invention discloses a video jitter detection method and device. The method comprises the following steps of framing a video to be detected to obtain a frame sequence; carrying out feature point detection on the frame sequence frame by frame, obtaining a feature point of each frame, and generating a frame feature point sequence matrix; performing operation on the frame feature point sequence matrix based on an optical flow tracking algorithm to obtain a motion vector of each frame; obtaining a feature value of the to-be-detected video according to the motion vector of each frame; and taking the characteristic value of the to-be-detected video as an input signal of a detection model to obtain an output signal through operation, and judging whether the to-be-detected video jitters or not according to the output signal. According to the method, the feature points are detected, an optical flow tracking algorithm is adopted for the feature points, the problem that tracking cannot be carried out due to the fact that change between every two adjacent frames is too large is effectively solved, and good sensitivity and robustness are achieved when videos shot under the conditions of sudden large displacement, strong jitter, large rotation and the like of a lens are detected.

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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