Character dialogue subtitle extraction method oriented to news video

A technology for dialogue subtitles and news, applied in the parts of color TVs, parts of TV systems, TVs, etc., to achieve the effect of overcoming the small area

Active Publication Date: 2014-06-11
北京中科模识科技有限公司
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AI Technical Summary

Problems solved by technology

However, according to our query results, there is no method for extracting dialogue subtitles specifically for news video characters in the prior art

Method used

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  • Character dialogue subtitle extraction method oriented to news video
  • Character dialogue subtitle extraction method oriented to news video
  • Character dialogue subtitle extraction method oriented to news video

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Embodiment Construction

[0051] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0052] Such as figure 1 Shown, the character dialogue subtitle extraction method of news video-oriented character of the present invention comprises the following steps:

[0053] S1. Convert news programs into digital news videos through digital acquisition equipment;

[0054] S2. Performing shot boundary detection and voice preprocessing on the news video;

[0055] S3. Perform host detection and clustering based on the voice shot set obtained in step S2, so that the shots of a class all correspond to the same host;

[0056] S4. Based on the voices of different hosts collected based on the clustering results obtained in step S3, construct a corresponding host acoustic m...

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Abstract

The invention discloses a character dialogue subtitle extraction method oriented to a news video. The method includes the steps that firstly, a news program is converted into a digital news video through a digital acquisition device; secondly, shot boundary detection and voice preprocessing are conducted on the news video; thirdly, host detection and clustering are conducted based on voice shot sets acquired in the second step, and then shots in the same class are made to all correspond to a same host; fourthly, based on voice of different hosts acquired through a clustering result acquired in the third step, corresponding host acoustic models are built, and all voice shots in the video are divided into the host speaking shots and the character dialogue shots; fifthly, subtitle detection and tracking are conducted on the character dialogue shots, and the appearance time, disappearance time and the space position of each subtitle are acquired; sixthly, based on subtitle position analysis, background regions and noise subtitles misjudged as subtitles are filtered out, and the remaining subtitles are used as character dialogue subtitles for output.

Description

technical field [0001] The invention relates to the technical field of intelligent analysis of audio and video, in particular to a method for extracting dialogue subtitles of characters for news videos. Background technique [0002] News programs use modern electronic technology as the means of communication, with sound and picture as the symbol of communication, and report the latest or ongoing facts through TV media as multimedia data stream files. As television signals cover most of the population and regions of our country, news programs have penetrated into people's daily work, study and life, and have become an important way for the people to obtain information. [0003] News subtitles refer to texts that are manually added to videos during the production of news programs, including but not limited to: title subtitles that give a brief overview of news items; explanatory subtitles that introduce and explain the characters and devices that appear in the news; In the ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/222G06K9/32
Inventor 姜洪臣
Owner 北京中科模识科技有限公司
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