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Network camera apparatus, network camera server and digital video recorder for preventing forgery and alteration of a digital image, and apparatus for authenticating the digital image from said apparatus, and method thereof

  • US 20040071311A1
  • Filed: 11/12/2003
  • Published: 04/15/2004
  • Est. Priority Date: 12/09/2000
  • Status: Abandoned Application
First Claim
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1. A network camera apparatus comprising:

  • an image inputting portion for receiving an image signal photographed in real time;

    an image data processing portion for converting the image signal outputted from said image inputting portion to a digital signal;

    an information generating portion for generating an information to be embedded as a watermark;

    a watermark generating portion for generating the watermark using the information of said information generating portion;

    a watermark embedding portion for embedding the watermark generated at said watermark generating portion into the image signal outputted from said image data processing portion;

    an image compressing portion for compressing the watermark-embedded image signal outputted from said watermark embedding portion; and

    a network connecting portion for transmitting the compressed image signal outputted from said image compressing portion through network.

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