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Method and apparatus for real-time detecting advertisement from broadcast data stream

A technology of data flow and time detection, which is used in broadcast services for monitoring/identification/identification, pulse-modulated TV signal transmission, etc. It can solve the problem of very high requirements for advertising databases, inability to perform real-time detection, and inability to provide high-configuration hardware. system problems

Inactive Publication Date: 2008-05-07
PEKING UNIV +2
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Problems solved by technology

However, these two methods need to store a large amount of advertising data during the detection process, so the requirements for the advertising database are very high, so a large-capacity storage system is required to provide support, and real-time detection cannot be performed
At the same time, since most application environments for advertisement detection require real-time performance and cannot provide high-configuration hardware systems (such as digital video equipment), this method cannot meet the current design requirements.

Method used

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  • Method and apparatus for real-time detecting advertisement from broadcast data stream
  • Method and apparatus for real-time detecting advertisement from broadcast data stream

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specific Embodiment approach

[0109] In yet another specific embodiment:

[0110] According to the detection result of the detection module 401, the judgment module 402 detects that the shot cut at the second time is a weak shot cut, and the shot cut density from the second time to the first time is greater than the set threshold, but the silence corresponding to the set length range If the product information frame is not included in the video stream, when the broadcast data stream before the second time or after the first time is determined to be an advertisement, the broadcast data stream from the second time to the first time is determined to be an advertisement.

[0111] Therefore, the detection module 401 may specifically include:

[0112] When a silence of a set length is detected in the audio stream of the broadcast video stream and a camera switch is detected in the video stream at the same time, the corresponding time is determined as the unit of the first time;

[0113] A unit for detecting a v...

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Abstract

The present invention relates to the multimedia communication technology, in particular to the technology of real-timely detecting advertisements in broadcast data flow. The present invention discloses a method and a device for real-timely detecting advertisements in broadcast data flow in order to reduce the requirements on the configuration of the storage capability of a system when advertisements are real-timely detected. By the combination of silence detection and shot transition detection, the present invention utilizes the structural characteristics of advertisements and the characteristics of the spots of a television station to real-timely detect advertisements. The present invention also discloses a device used for real-timely detecting advertisements in broadcast data flow; after receiving the broadcast data flow, the device detects and judges the broadcast data flow and real-timely detects an advertisement sequence which is then processed.

Description

technical field [0001] The invention relates to multimedia communication technology, in particular to the technology of real-time detection of advertisements from broadcast data streams. Background technique [0002] The content-based video (image), audio and multimedia retrieval technology that appeared in the 1990s has developed into a new comprehensive application field involving and including multi-disciplinary theories. Its applications are becoming wider and wider, such as the rapid development of mass video content management and network video image retrieval. Massive video content management has been successfully applied to many libraries and TV stations, and network video image retrieval is also the focus of research and development and promotion of many companies. For the retrieval of video image data, the current common practice is: the first step is to cut the shot, and then extract the key frame that effectively represents the shot content. Purpose. [0003] ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/52H04H60/63
Inventor 王祥郭宗明
Owner PEKING UNIV
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