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Method and device for video dejittering

A de-jittering, video technology, applied in the field of video processing, can solve problems such as jittering

Active Publication Date: 2017-06-20
BEIJING QIYI CENTURY SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the shooting device will shake relative to the target scene, and the shaking of the shooting device will inevitably cause the content of the captured image to shake

Method used

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  • Method and device for video dejittering
  • Method and device for video dejittering
  • Method and device for video dejittering

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Embodiment Construction

[0073] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0074] With the popularity of mobile phones, digital cameras, video cameras and other shooting equipment with video shooting functions, more and more non-professional photographers have begun to use shooting equipment to shoot videos. Most of the video scenes in the captured videos belong to the "what you see is what you get" ". Professionally...

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Abstract

The embodiment of the invention discloses a method and a device for dejittering a video. A video de-shaking method, comprising: performing scene segmentation on a target video code stream file to obtain at least one code stream segment; for the jth video frame in the i-th code stream segment, within the edge area of ​​the video frame Determine the coding unit block that meets the preset requirements, determine the area covered by the coding unit block as the background feature area; obtain the motion vector of each basic unit block in the background feature area relative to the previous video frame, and use the preset camera motion vector Determine the rules to determine the camera motion vector of a video frame; calculate the mean value of the camera motion vectors of all video frames in the i-th code stream segment, judge whether the mean value is less than ε_mv, and take corresponding processing steps according to the judgment result. The present invention can use a vibration model to simulate camera shaking according to code stream information, and then use a corresponding processing strategy to remove the shaking of the video picture, so as to improve the quality of the video picture.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a video de-jittering method and device. Background technique [0002] With the popularity of shooting equipment with video shooting functions such as mobile phones, digital cameras, and video cameras, more and more non-professional photographers have begun to use shooting equipment to capture images of target scenes, such as users using mobile phones to shoot a dance video. Usually, the shooting device will shake relative to the target scene, and the shaking of the shooting device will inevitably lead to the shaking of the content of the captured image. [0003] Therefore, if a method for removing the jitter of the video content picture can be proposed, it will undoubtedly promote the improvement of the video picture quality. Contents of the invention [0004] In order to solve the above problems, the embodiment of the present invention discloses a video de-ji...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/21H04N5/14
Inventor 贺坚强
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD