Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Wavelet-domain video watermarking method based on fractal theory

A fractal theory, video watermarking technology, applied in selective content distribution, image communication, electrical components, etc., can solve problems such as the inability to achieve effective protection of digital video copyright, affecting the development of video watermarking technology, and taking a long time to achieve invisible High performance, high practicability, and short time-consuming effect

Inactive Publication Date: 2017-02-01
QINGDAO UNIV OF SCI & TECH
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing video watermarking technology has a large amount of calculation and takes a long time to affect the development of video watermarking technology, and thus cannot realize the effective protection of digital video copyright, the present invention provides a wavelet domain video watermarking based on fractal theory method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wavelet-domain video watermarking method based on fractal theory
  • Wavelet-domain video watermarking method based on fractal theory
  • Wavelet-domain video watermarking method based on fractal theory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A wavelet domain video watermarking method based on fractal theory, comprising the following steps:

[0028] Step 1: Subdividing the carrier video into frames, and numbering all frames from 1 to n in sequence, where n is an integer;

[0029] Step 2: selecting a key frame from all the frames;

[0030] Step 3: converting the key frame and the watermark image into YUV format, and then carrying out L-layer HAAR wavelet transform to the Y, U, and V components of the key frame and the watermark image respectively;

[0031] Step 4: divide the LL, HL, LH and HH of the HAAR wavelet transform from the L layer to the second layer of the Y, U, V three components of the key frame and the watermark image into a wavelet tree D for storage, and store The LL, HL, LH and HH of the HAAR wavelet transform from the L-1 layer to the first layer of the three components of the Y, U, and V components of the key frame and the watermark image are divided into wavelet tree R for storage;

[0032...

Embodiment 2

[0050] A wavelet domain video watermarking method based on fractal theory, comprising the following steps:

[0051] Step 1: Subdividing the carrier video into frames, and numbering all frames from 1 to n in sequence, where n is an integer;

[0052] Step 2: selecting a key frame from all the frames;

[0053] Step 3: converting the key frame and the watermark image into YUV format, and then carrying out L-layer HAAR wavelet transform to the Y, U, and V components of the key frame and the watermark image respectively;

[0054] Step 4: decompose LL, HL, LH and HH of the HAAR wavelet transform from the L layer to the second layer of the Y, U, V three components of the key frame and the watermark image into a wavelet tree D, and the LL, HL, LH and HH of the HAAR wavelet transform of the L-1 layer to the first layer of the Y, U, V three components of the key frame and the watermark image are decomposed into a wavelet tree R;

[0055] Step 5: combining the Y, U and V components of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of processing of video images, and in particular relates to a wavelet-domain video watermarking method based on a fractal theory. In a watermark embedding process, firstly, wavelet transform of extracted key frames and watermark images is respectively carried out simultaneously; furthermore, decomposition of a wavelet tree D and a wavelet tree R is carried out; and then, direct multiplication by a strength coefficient is correspondingly embedded therein. According to the wavelet-domain video watermarking method based on the fractal theory disclosed by the invention, a method for embedding a watermark into a video is provided; therefore, the copyright of the video can be effectively protected; the problems of high video capacity, high calculation complexity and difficult watermark embedding can be solved; the watermark is embedded into the video through the method provided by the invention; the calculation amount is low; the consumed time is short; the quality of a video file cannot be influenced; the video after the watermark is embedded is high in invisibility and high in availability and robustness; and the method disclosed by the invention has a very important meaning for protecting the copyright of the video.

Description

technical field [0001] The invention relates to the technical field of video image processing, in particular to a wavelet domain video watermarking method based on fractal theory. Background technique [0002] In recent years, with the rapid popularization and development of the Internet, while the dissemination of multimedia information has become more and more convenient and fast, it has also brought many problems involving copyright and ownership disputes. Video watermarking technology realizes copyright and ownership protection of videos by embedding watermark information into videos. In terms of video watermarking research, due to the large amount of video information and the complexity of watermark embedding and extraction processes, the development of video watermarking technology has been relatively slow, and the existing multiple video coding formats have caused limitations in the development of watermarking technology. Therefore, there is no mature video watermark...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/8358
CPCH04N21/8358
Inventor 杨树国梁家栋李春霞刘庆亮隋淑娇
Owner QINGDAO UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com