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Video stabilizing method based on motion curve optimization

A motion trajectory and video stabilization technology, applied in image data processing, instrumentation, computing, etc., can solve problems such as constraints and restrictions

Pending Publication Date: 2018-09-21
SHANGHAI UNIV
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  • Abstract
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Problems solved by technology

This method reduces the computational complexity and improves the robustness of SFM reconstruction, but the method is still restricted and limited by the SFM algorithm

Method used

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  • Video stabilizing method based on motion curve optimization
  • Video stabilizing method based on motion curve optimization
  • Video stabilizing method based on motion curve optimization

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Embodiment Construction

[0064] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0065] Such as figure 1 As shown, a video stabilization method based on motion trajectory optimization includes the following steps:

[0066] Step 1, initial stabilization of the video: first extract the feature points of the continuous images of the video, perform feature point matching, and perform feature point screening on the matching feature points, eliminate wrong feature point matching, and obtain accurate feature point matching, and then according to the precise feature point matching Feature points are matched to estimate the original camera motion trajectory of the video; then an energy function based on the original camera motion trajectory is establ...

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Abstract

The invention discloses a video stabilizing method based on motion curve optimization. The video stabilizing method comprises the following steps: firstly stabilizing a video performing a global camera motion curve on an input video, using feature point matching to estimate an original camera motion curve, and smoothening the camera motion curve through the energy function of an optimal motion curve; then carrying out local stabilizing adjustment on the stabilized video, dividing a video image into a plurality of griddings, estimating the camera motion inside each gridding respectively, and carrying out smoothening treatment on camera motion; and finally carrying out stabilizing readjustment on the global motion of the video so as to further improve the stability of the video. The method is a video stabilizing method with good video stabilizing performance and high robustness, the shaking for shot videos caused by camera shaking, shooting equipment imperfection and poor shooting environment can be amended, and the comfort level of watching the videos can be improved.

Description

technical field [0001] The invention relates to a video stabilization method, in particular to a motion trajectory optimization-based video stabilization method, and belongs to the technical field of electronic image stabilization. Background technique [0002] In recent years, with the rapid development of portable shooting equipment, the number of amateur photographic images has grown exponentially. However, in the process of capturing video, amateur photographers often cannot keep the device stable for a long time during the camera shooting process due to the limitations of shooting conditions and capture equipment, resulting in unstable phenomena such as jitter in the captured video. These instabilities have seriously affected the quality of the captured video and the viewing comfort of the user. Using a mechanical platform image stabilization method, such as fixing the camera on a shooting platform such as a gimbal, can reduce video instability, but the disadvantage of...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/50G06T7/246
CPCG06T5/50G06T7/246G06T2207/30236G06T2207/10016G06T5/70
Inventor 安平周杰尤志翔
Owner SHANGHAI UNIV
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