Camera self-calibration-based jittering video deblurring method and device

A technology for deblurring and cameras, which is applied in TV, color TV, image enhancement, etc., and can solve problems such as poor deblurring effect

Active Publication Date: 2011-05-25
TSINGHUA UNIV
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Problems solved by technology

[0004] The present invention aims at the poor deblurring effect of the existing shaking video deblurring method, and proposes a shaking video image deblurring method and device based on camera self-calibration

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  • Camera self-calibration-based jittering video deblurring method and device
  • Camera self-calibration-based jittering video deblurring method and device

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Embodiment Construction

[0022] The following describes in detail all embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

[0023] The present invention is a method and device for deblurring a shaking video based on camera self-calibration, which is proposed in view of the poor deblurring effect of the existing methods on images with a large depth range. In order to have a clearer understanding of the methods of the embodiments of the present invention, the following describes in detail the work flow and working principles of the methods and apparatuses of the embodiments of the present invention with refe...

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Abstract

The invention provides a camera self-calibration-based jittering video deblurring method and a camera self-calibration-based jittering video deblurring device. The method comprises the following steps: A, calculating the initial point diffuse function and deblurred image of a blurred image; B, performing self-calibration on the deblurred image to obtain the internal and external parameters of a camera; C, calculating a depth map according to the deblurred image and the internal and external parameters; D, estimating the intra-frame motion of the camera according to the initial point diffuse function and the depth map; E, optimizing intra-frame motion and the deblurred image according to a probability model to obtain the final intra-frame motion and the final deblurred image; and F, executing the steps from A to E circularly to obtain the deblurred video of a jittering video. In the method, depth-associated video image sequence deblurring is realized by a camera self-calibration technique, so the video image sequence has a better deblurring effect and the image deblurring efficiency is improved.

Description

technical field [0001] The present invention relates to the field of computer vision and digital video image processing, in particular to a method and device for deblurring a shaking video based on camera self-calibration. Background technique [0002] Deblurring of shaken video is a video image processing technique. With the development of camera equipment, the prices of various camera equipment have been greatly reduced, and the popularity of personal camera equipment and various handheld camera equipment has resulted in the emergence of a large number of video image data. The image blur caused by the motion of the camera during shooting has become one of the main factors that reduce the quality of video images. Therefore, many image deblurring algorithms have been proposed to repair blurred images. Most of the existing algorithms adopt the spatially consistent point spread function assumption, that is, the blur kernel is assumed to be the same for all points on the image...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/20H04N5/232
Inventor 戴琼海岳涛
Owner TSINGHUA UNIV
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