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Video data based objective image enhancement method

A video data and object image technology, which is applied in the field of object image enhancement based on video data, can solve the problem that all information cannot restore the image that the user is interested in, etc.

Active Publication Date: 2013-04-03
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

As no software is available, it is currently not possible to recover the image of interest to the user using all the information of the entire video data

Method used

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  • Video data based objective image enhancement method
  • Video data based objective image enhancement method
  • Video data based objective image enhancement method

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Embodiment Construction

[0048]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0049] The present invention proposes a method for image enhancement based on video data, wherein video data refers to digital format video data captured by digital photography equipment (such as smart phones, computer cameras, etc.), or through analog photography equipment (such as some monitoring cameras, analog cameras, etc.) camera, etc.) to digital video data obtained after converting the analog video. The data is a discrete time series of static digital pictures, and each digital picture is called a "frame" of the video data. The moment corresponding to each frame can be calculated from its serial number and the frame rate of the video data. Each frame can be a digital picture in a single-channel format, correspondi...

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Abstract

The invention discloses a video data based objective image enhancement method. The method includes the steps: firstly, using an objective image appearing in a picture dk of a kth frame of a video datum d as an objective image template T, wherein the video datum includes L frames, and 1<=k<=L; secondly, seeking a match position in the template T from each frame of picture of the video datum, wherein the match position of the ith frame is (xi, yi), the position of the T in the dk is recorded as (xk, yk), and 1<=i<=L; thirdly, obtaining offset of the ith frame and offsetting each frame of the video datum according to the offset, wherein the offset satisfies the offset that si=(xi-xk, yi-yk); and fourthly, judging whether a result after offset meets the requirements or not, and completing the process if yes. By the method, image information of target persons or objects can be extracted from video resources.

Description

technical field [0001] The invention relates to the technical field of video data processing, in particular to an object image enhancement method based on video data. Background technique [0002] Nowadays, video data obtained through various shooting tools is becoming more and more common. For example, in addition to the video programs actively recorded by high-performance and professional equipment, the archived data of security surveillance cameras in banks, shops, residential quarters and other places can be obtained through Video data obtained from activities such as "street photography" with portable devices such as smartphones are also constantly being produced. Moreover, with the development of social economy and the "digitization" and "mediaization" of the mass lifestyle, the growth rate of video data volume is also increasing. [0003] Although the video contains a large amount of data, due to the limitations of shooting equipment and conditions, the images of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00H04N7/18
Inventor 霍卓玺周建锋李一鸣张茂林
Owner TSINGHUA UNIV
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