Method for dynamically adding subtitles based on video content

A technology for dynamically adding and video content, applied to color TV components, TV system components, TVs, etc., can solve problems such as screen content occlusion that users are interested in

Active Publication Date: 2010-12-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for dynamically adding subtitles based on video content. The method improves the traditional method for adding subtitles to videos

Method used

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  • Method for dynamically adding subtitles based on video content
  • Method for dynamically adding subtitles based on video content
  • Method for dynamically adding subtitles based on video content

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Embodiment Construction

[0030] Such as figure 1 Shown, a kind of method of dynamically adding subtitles based on video content of the present invention comprises the following steps:

[0031] (1) convert the video to be processed to the CIE-Lab color space by the RGB color space, obtain the video information of the CIE-Lab color space, and separate the video brightness channel and the color channel;

[0032] Convert from RGB color space to CIE-Lab color space according to the following formula:

[0033] L = 0.299 × R + 0.587 × G + 0.114 × B a = 0.713 × ( R ...

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Abstract

The invention discloses a method for dynamically adding subtitles based on the video content. The method comprises the following steps of: converting a video image to be processed from RGB color space into a CIE-Lab color space; extracting time axis information and text bitmaps of subtitles to be added; searching for an addition region of each piece of subtitle text, namely searching for the addition region of each piece of subtitle text by calculating the sum of energy values of all pixels in regions with the same resolution as that of the text bitmap of the subtitle text; and finally adding the subtitle texts into the corresponding searched regions to finish the operation of adding the subtitles of the video image. Each step of the method of the invention can be processed on a home computer, so the problem that the conventional subtitle addition method only simply adds the subtitle texts into the fixed regions of the image in ignorance of the possible damage to the image content is effectively solved, and a simple and intuitive method for dynamically adding the subtitles based on the video content is provided for the non-professional personnel.

Description

technical field [0001] The invention relates to the technical field of computer video processing, in particular to a method for dynamically adding subtitles based on video content. Background technique [0002] With the advancement of science and technology and the development of the times, video acquisition equipment is becoming more and more popular, and video dissemination is becoming more and more extensive. Video, a multimedia technology that integrates visual and auditory senses, has become an essential part of people's lives. In order to better meet people's needs and improve the viewer's visual experience, a large number of video processing technologies have been proposed. For example, in order to solve the difference between the resolutions of different video display devices, researchers have proposed video scaling technology; in order to obtain better video visual effects, researchers have proposed image quality enhancement technology and so on. At the same time, ...

Claims

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Application Information

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IPC IPC(8): H04N5/278
Inventor 冯结青姜晓希
Owner ZHEJIANG UNIV
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