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A method and device for marking video frames

A video frame and marking technology, which is applied in the direction of television, electrical components, image communication, etc., can solve the problem of increasing the probability of error in the recognition of the changing bit by the receiving end, and achieve the calculation that is beneficial to the evaluation of video quality and improve the recognition accuracy. Effect

Active Publication Date: 2019-02-01
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When shooting or displaying, images of multiple video frames may appear on the same screen at the same time. If some change bits change too fast, or even change continuously, it will greatly increase the chance of the receiving end recognizing the change bits incorrectly.

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  • A method and device for marking video frames
  • A method and device for marking video frames
  • A method and device for marking video frames

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.

[0021] By adopting the embodiments of the present invention, the recognition accuracy of video frames can be improved, which is beneficial to the calculation of video quality evaluation.

[0022] The terms "first", "second", "third" and "fourth" in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", ...

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Abstract

The invention provides a method and an apparatus for marking video frames. The method comprises the steps of when a video frame is marked, acquiring at least one mark bit on the video frame, and selecting a first mark bit from the at least one mark bit, wherein the weight of the first mark bit indicates the probability of being selected of the first mark bit; when the first mark bit is lower than preset tolerance, changing the value of the first mark bit, and determining state information of a first mark block located at the first mark bit according to the changed value, wherein the first mark block is a non-digital identifier such as a pattern or a color; and forming coding information together with mark blocks located at other mark bits so as to mark the video frame. The method and apparatus provided by the invention can improve the recognition accuracy of the video frame and are favorable for the calculation of video quality assessment.

Description

technical field [0001] The invention relates to the field of video quality analysis, in particular to a method and equipment for marking video frames. Background technique [0002] Video quality evaluation mainly includes subjective quality evaluation and objective quality evaluation. In subjective quality evaluation, testers actively evaluate video quality. Since the human eye is the ultimate recipient of video services, subjective quality evaluation is currently a relatively reliable method. In objective quality evaluation, objective quality evaluation mainly uses mathematical models, such as full reference model, partial reference model and no reference model. The full-reference model obtains the quality of the test video by comparing the quality with the reference video; the no-reference model evaluates the test video without relying on any reference information; the partial reference model is between the full-reference model and the no-reference model. Among them, for ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00
CPCH04N17/004
Inventor 雍凯
Owner HUAWEI TECH CO LTD
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