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Dgital watermark of television content detection based on key, and its coding/decoding device

A technology for TV content and digital watermarking, which is used in TV, pulse modulation TV signal transmission, electrical components, etc., and can solve problems such as signal distortion, complex search and matching systems, and difficulty.

Inactive Publication Date: 2005-01-12
上海隆瀛信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system is difficult to realize in reality: first, all TV broadcast contents must be known, therefore, it will be huge to build a database capable of storing all songs, TV or advertisement contents; second, Since broadcasting generally distorts the signal, proximity search is required, which would be an extremely complex search-and-match system; third, the distortion of the broadcast signal will vary over time, so designing a surveillance system that is 100% reliable for exact matching will is difficult, even impossible

Method used

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  • Dgital watermark of television content detection based on key, and its coding/decoding device
  • Dgital watermark of television content detection based on key, and its coding/decoding device
  • Dgital watermark of television content detection based on key, and its coding/decoding device

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Embodiment Construction

[0012] The present invention will be further illustrated by examples, but the present invention is not limited to the examples.

[0013] Embodiment. It is assumed that an advertiser realizes the statistical analysis of the broadcast period, broadcast time length, broadcast frequency, etc. of the pharmaceutical advertisements provided by the TV station through the present invention.

[0014] Step 1. Advertiser adopts Figure 5 The advertisement classification and multi-level coding classify and classify the pre-released drug advertisements and then code C, and select the key K to control the digital watermark generation device to generate a digital watermark W;

[0015] Step 2. The advertiser can directly use the digital watermark embedding device to embed the digital watermark W into the drug advertisement;

[0016] Step 3. The advertiser provides the drug advertisement embedded with the digital watermark W to the TV station and arranges the advertisement broadcast table B; ...

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Abstract

The invention includes following steps: when the TV contents need to make classifying and multilevel coding, the digital watermarking embedded into the TV contents will have the feature that can identify the TV contents, the feature will be easy to be detected and used to monitor the TV contents. By detecting the digital watermarking of TV contents, the display of TV contents can be controlled and restricted.

Description

technical field [0001] The present invention relates to information monitoring and encoding and decoding thereof, in particular to a key-based digital watermark encoding and decoding device for television content detection and monitoring thereof. Background technique [0002] In 1997, Kilburn broke the scandal about TV advertising in "Dirty linen, Dark Secrets": at least two major Japanese TV stations routinely overbooked air time, advertisers paid for advertising fees, but thousands of commercials But it was never aired. The reason why this happened and was not noticed is that there is no proper system to monitor the actual airing of TV commercials. [0003] A 1999 sample by the Screen Actors Guild of America found that the average hour of American television programming was paid $1,000 less in royalties. For copyright owners of works, how can they not be infringed by TV stations? [0004] One method of television surveillance is to have observers monitor television broa...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04N7/24
Inventor 杨振宁
Owner 上海隆瀛信息科技有限公司
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