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Badge anti-forge method for real-time video monitoring

A real-time video and logo technology, applied in the field of real-time video anti-counterfeiting devices, can solve the problems that the anti-counterfeiting effect cannot be guaranteed, achieve the effect of small processing workload and prevent intentional attacks

Inactive Publication Date: 2008-04-30
江苏新希望科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the limitation of this scheme for real-time anti-counterfeiting is that the anti-counterfeiting effect of this scheme cannot be achieved for complex environments where the distortion is difficult to accurately control using analog signal transmission or analog-to-digital mixing, or that needs to undergo multiple analog-to-digital, digital-to-analog conversions, etc. promise

Method used

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  • Badge anti-forge method for real-time video monitoring
  • Badge anti-forge method for real-time video monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: A logo anti-counterfeiting method for real-time video signal monitoring, a key is provided, and according to the time signal, an image in the preset image library is selected to change to generate an anti-counterfeiting logo, the brightness, size, The angle and the color of each point therein are adjusted according to the key; the anti-counterfeiting logo is dynamically superimposed on the original video signal, and the superimposed position is determined according to time-related information; the video signal after superimposing the logo is transmitted to the playback device for use, In order to realize the anti-counterfeiting processing of the video signal.

[0043] The anti-counterfeiting detection method of this embodiment is to provide a key, time synchronization between the detection end and the sending end, and according to the time signal, select an image in the preset image library to generate an anti-counterfeiting logo, the brightness and size of...

Embodiment 2

[0046] Embodiment 2: A logo anti-counterfeiting method based on a summary of time information for real-time video signal monitoring, providing a key, summarizing the current time information, and selecting an image in the preset image library as the anti-counterfeiting logo according to the summary information ; dynamically superimposing the anti-counterfeiting logo into the original video signal, and the superimposed position is determined according to the abstract; transmitting the video signal after superimposing the logo to the playback device for use in order to realize the anti-counterfeiting processing of the video signal.

[0047] The anti-counterfeit detection method of the present embodiment is that a key is provided, time synchronization is performed between the detection end and the sending end, the synchronous time information is summarized, and an image in the preset image library is selected accordingly as the anti-counterfeit logo; In the video signal, according...

Embodiment 3

[0050] Embodiment 3: A logo anti-counterfeiting method for an integrated camera, providing a group of keys, selecting a key according to the key selection parameters to encrypt the current time information, global positioning information, and the camera serial number, and selecting the preset key according to the encryption result Assuming that an image in the image library is changed to generate an anti-counterfeit logo, the brightness, size, angle and color value of each point in the anti-counterfeit logo are adjusted according to the key; the anti-counterfeit logo is dynamically superimposed on the original video signal, The position of the logo is determined according to the time-related information; the video signal superimposed with the logo is transmitted to the playback device for use in order to realize anti-counterfeiting processing of the video signal.

[0051] In the logo anti-counterfeiting method of this embodiment, the logo superimposition process is completed in...

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Abstract

A cipher key is provided in the invention. Changing an image selected from an image base setup in advance generates logo of guarding against false. Brightness, size, angle and color in each point of the logo are adjusted based on the cipher key. The said logo of guarding against false is superposed on original video signal. Superposed position is determined based on information related to time. The video signal with logo being superposed is transferred to playing back device so as to realize process of guarding against false for video signal. The invention also discloses relevant detection method and device for implementing superposition of logo. When video monitoring network is intruded, the invention knows whether video signal is replaced, delayed or modified locally after detection. Advantages are: small process workload and low cost.

Description

technical field [0001] The invention relates to video signal processing, in particular to a method for proving the reliability of real-time video and realizing real-time video anti-counterfeiting and a real-time video anti-counterfeiting device using the method. Background technique [0002] With the popularity of video surveillance, how to verify the reliability of real-time video signals and implement anti-counterfeiting on video networks has become a problem that people pay attention to. [0003] In the security of residential areas and some important places, cameras and cables are usually used to form a video monitoring network. For this, someone will insert a pre-prepared video signal into the video network by means of line switching to confuse the security guards, and use the time difference to Engaging in some illegal activities, how to prevent this from happening is a problem that people need to solve. [0004] At present, the more commonly used method is to detect ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N7/16
Inventor 陆健
Owner 江苏新希望科技有限公司