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A method of video image shake elimination processing

A processing method and technology of video images, applied in image communication, TV, color TV and other directions, can solve problems such as affecting the video playback effect, and achieve the effect of simple algorithm, strong realization, and stable image output.

Active Publication Date: 2020-08-18
深圳市智慧城市建设运行管理有限公司
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Problems solved by technology

If there is a large correlation between the pixels in the attached frame, that is to say, when the content of two consecutive frames is very similar or the same, the video image can be considered to be relatively stable. When the correlation is small, that is to say, when the content of two consecutive frames is shifted in position, it can be considered that jitter has occurred, which seriously affects the playback effect of the video

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  • A method of video image shake elimination processing
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Embodiment Construction

[0035] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 As shown, the present invention discloses a video image shake elimination processing method, comprising the following steps:

[0037] Select the image feature window: select a frame of image in the video input data to select the interval with the variable structure model as a series of image feature windows of the graph:

[0038] Feature Tracking: After discovering a series of feature windows in a frame of image, the video sequence trajectory is calculated. The specific algorithm is as follows:

[0039] I(x,y,t+)=I(x-Δx,y-Δy,t);

[0040] Where x, y represent the position of the image window. t represents the first frame image captured at a certain time;

[0041] Trajectory smoothing: After the feature tracking is completed, the video sequence trajectory is smoothed in the X direction and the Y direction ...

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Abstract

The invention discloses a video image jitter removal processing method, comprising image preprocessing, image feature window selection, feature tracking, trajectory smoothing, image replacement and other steps to achieve stable image output, and noise reduction processing is carried out in the image preprocessing by time domain filtering processing and space domain filtering processing. The video image jitter removal processing method disclosed by the invention has the characteristics of stable image output, high image quality and strong realizability.

Description

technical field [0001] The invention relates to the technical field of video image processing, in particular to a video image shake elimination processing method. Background technique [0002] Network video images are composed of multiple frames of still images, and there is a certain correlation between the still images. These related still images are connected together to form a video sequence with practical significance. The technique of eliminating digital video jitter is essentially a statistical method. Video sequences often contain statistical redundancies, both temporally and spatially. The basic statistical characteristic that the technology of eliminating video jitter relies on is the correlation between pixels. There is a simple correlation translation motion between successive frames. As a unit, effectively develop the spatial correlation between the adjacent pixels of the same picture. If there is a large correlation between the pixels in the attached frame, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/14H04N5/21
CPCH04N5/14H04N5/21
Inventor 蔡业飞刘勇邹时鹏
Owner 深圳市智慧城市建设运行管理有限公司
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