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Method and device for preventing shaking of video image

A video image and image technology, which is applied in the field of video shooting technology and image processing, can solve the problems of poor anti-shake effect and achieve the effect of improving the anti-shake effect

Inactive Publication Date: 2014-03-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a video image stabilization method and device to solve the problem in the prior art that the video image stabilization effect is poor

Method used

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  • Method and device for preventing shaking of video image
  • Method and device for preventing shaking of video image

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0152] Embodiment 1 of the present invention provides a video image stabilization method, such as figure 1 shown, including:

[0153] Step 101. Obtain the focus position value of the video image to be processed when it is focused and shot by the shooting device, as the current focus position value.

[0154] Step 102 , based on the pre-established correspondence between the focus position value and the subject distance, determine the subject distance corresponding to the current focus position value as the current subject distance.

[0155] Step 103: Based on the pre-established correspondence between the subject distance, lens rotation angle and image offset, determine the image offset corresponding to the current subject distance and the current lens rotation angle as an image offset adjustment , where the current lens rotation angle is the lens rotation angle of the video image to be processed when it is captured by the capture device.

[0156] Step 104: Using the image of...

Embodiment 2

[0227] Embodiment 2 of the present invention provides a video image stabilization method, such as Figure 10 shown, including:

[0228] Step 1001. Obtain the focus position value of the video image to be processed when it is focused and shot by the shooting device, as the current focus position value.

[0229] Step 1002 , based on the pre-established correspondence between the focus position value and the subject distance, determine the subject distance corresponding to the current focus position value as the current subject distance.

[0230] Step 1003, based on the pre-established correspondence between the object distance, lens rotation angle and image offset, determine the image offset corresponding to the current object distance and the current lens rotation angle, as the first image offset The amount of shifting, where the current lens rotation angle is the lens rotation angle of the video image to be processed when it is shot by the shooting device.

[0231] Step 1004...

Embodiment 3

[0323] Based on the same inventive concept, according to the video image stabilization method provided by the above-mentioned embodiments of the present invention, correspondingly, Embodiment 3 of the present invention also provides a video image stabilization device, the structural diagram of which is as follows Figure 15 shown, including:

[0324] The focus position value acquisition unit 1501 is used to acquire the focus position value of the video image to be processed when it is focused and shot by the shooting device, as the current focus position value;

[0325] The distance determination unit 1502 is configured to determine the distance to the subject corresponding to the current focus position value as the distance to the subject based on the pre-established correspondence between the focus position value and the subject distance;

[0326] An offset adjustment determination unit 1503, configured to determine an image corresponding to the current object distance and t...

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Abstract

The invention discloses a method and device for preventing shaking of a video image. The method for preventing shaking of the video image comprises the steps that the focusing positional value of a video image to be processed when focusing shooting is conducted by shooting equipment is obtained and serves as a current focusing positional value; a shooting object distance corresponding to the current focusing positional value is determined based on the corresponding relation between a focusing positional value and a shooting object distance which are established in advance, and the shooting object distance corresponding to the current focusing positional value serves as the current shooting object distance; the image offset corresponding to the current shooting object distance and a current camera lens rotating angle is determined based on the corresponding relation among the shooting object distance, a camera lens rotating angle and image offset which are established in advance, and the image offset corresponding to the current shooting object distance and the current camera lens rotating angle serves as the adjustment amount of image offset, wherein a camera rotating angle, of the video image to be processed, which is obtained when focusing shooting is conducted by the shooting equipment serves as the current camera lens rotating angle, and video image anti-shaking offset processing is conducted on the video image to be processed by means of the adjustment amount of image offset. By the adoption of the method for preventing shaking of the video image, the anti-shaking effect of the video image is improved.

Description

technical field [0001] The present invention relates to the technical field of video shooting and image processing, in particular to a video image stabilization method and device. Background technique [0002] In recent years, with the rapid development of video shooting equipment technology, many shooting equipment have begun to support high-definition or even full high-definition shooting, such as SLR cameras, card cameras, mobile phones with camera functions, video surveillance equipment, driving recorders, etc. Therefore, the shooting quality of video has become more and more important for evaluating shooting equipment. [0003] There are many factors that affect the quality of video shooting, including: resolution, frame rate, noise, color saturation, image clarity, video stability, etc. Among them, the stability of the video is a very important factor. Because once the shooting is unstable, the overall picture will shake, which will not only cause the image to be unc...

Claims

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Application Information

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IPC IPC(8): H04N5/232
Inventor 孔晓东尹志叶王栋
Owner HUAWEI TECH CO LTD
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